Design - Handbook lifgo®- Lifter - CeeIndustrial

Design - Handbook 

lifgo ® - Lifter 

Rack gearboxes with ball-race bearings 

Schlüter - Lifter ® SL 

Guided Slide Rack Gear Units 

Complete as per 01/2007. Our products are subject to a continuous updating and development programme. We 

therefore reserve the right to implement technical changes to improve products without prior notification. 

© LEANTECHNIK AG patented under the utility patent No. 296 15 825.9 

Any duplication or copying of this document of whatsoever nature, even as extracts requires our written consent. 

Version: 01/2007 

�LEANTECHNIK AG, Im Lipperfeld 7c D - 46047 Oberhausen , �..49 (0) 208 - 49 52 5 - 0, Fax -18 www.leantechnik.com info@leantechnik.com

Contents 

Chapter 1 

Chapter 2 

Chapter 3 

1.1 References (summary) 

1.2 Applications areas for lifgo ® units 

2.1 Technical Introduction 

2.1.1 Improving successful products 

2.1.2 Advantages of the lifting system 

2.1.3 Advantages of the lifter 

2.1.4 Various positional set-ups of the lifter 

2.1.5 Combination 

2.1.6 Using the lifter as a rotating and pivoting mechansim 

2.2 System Components 

2.2.1 Accessories for the lifter 

2.2.2 Applications - examples 

2.2.2.1 Applications – example 1 




2.2.3 Modular designed 

2.2.4 Flexible systems - variants 

3.1 Line of lifgo ® 3.9 – 4.7 

3.1.1 Technical specification of the models 

3.1.2 Ascertaining the bearing force 

3.1.3 Technical specification - accessories 

3.1.4 Unit specification 

3.1.5 Unit drilling pattern – Coupling dimensions 

3.1.6 VEAS (Vertical Energy Arrest System) 

3.1.7 VEAS (Vertical Energy Arrest System) specification 

3.1.8 Unit Double specification 

3.1.9 Conversion Factors metric / GB – USA 

3.2 Gear tooth rack, guide rail and Accessories 

Types lifgo ® 3.9 – 4.7 

3.2.1 Gear tooth rack specification 

3.2.2 Gear tooth rack calculation of length 

3.2.3 Lateral load capacity – rack drives 

3.2.4 Rack Attachment Points 

3.2.5 Rack cover specification 

3.2.6 Rack cover calculation of length 

3.2.7 Guide rail (without rack profile) 

3.2.8 Rack guiding 

3.3 Line of lifgo ® linear 4.1 - 4.3 


3.3.2 Linear unit specification 


3.3.4 Lifgo linear VEAS unit specification 


Line of lifgo ® linear 4.1 - 4.3 

3.4.1 Linear gear tooth rack specification 

3.4.2 Linear Rack guiding 



Contents 

Chapter 4 

Chapter 5 

Chapter 6 

Chapter 7 

4.1 Line of Schlüter-Lifter ® SL 050 - 150 

4.1.1 Technical Data 



4.1.4 Lateral load capacity – rack drives 


4.2 Gear tooth rack and Accessories 

Type Schlüter-Lifter ® SL 050 - 150 


4.2.2 Rack covers 


Types lifgo ® 3.9 – 4.7, lifgo ® linear 4.1 - 4.3 and Schlüter-Lifter ® SL 

5.1.1 Profile shaft specification 

5.1.2 Locking collar specification 

5.1.3 Torsionally rigid tube 

5.1.4 Differential coupling 

5.1.5 Differential coupling specification 

5.1.6 Universal shaft joint specification 

5.1.7 Assembly Notices, Cardan Joint 

5.1.8 Cardan shaft specification 

5.1.9 Fixing brackets drilling pattern 

5.1.10 Mounting plates drilling pattern 

5.1.11 Lubrication plate 

5.1.12 Front-lubricator 

5.1.13 Self-lubricator 

6.1 Tool Making 

Type lifgo ® 4.0 

6.1.1 Areas of Application 

6.1.2 Rack gear according to company standards 

6.1.3 Fixing plate according to WDX standard Ford, Europe 

Dimensioned drawing 

7.1 Drive Units 


7.1.1 Drive Units 

7.1.2 Drive Units – three phase gear-motor DGM SR/SC 

7.1.3 Servomotor 

7.1.4 Pneumatic cylinder LZY 

7.2 Accessories 


7.2.1 Gearbox adapter, Coupling and Planet-Gearbox 

7.2.2 Bearer block for SGM / ATB units 

7.2.3 Shafts adapters 

7.2.4 Sliding Naves 

7.2.5 Coupling unit specification 

7.2.6 Gearbox Adapter for lifgo 

7.2.7 Gearbox Adapter for Schlüter 



Contents 

Chapter 8 

Chapter 9 

Chapter 10 

Chapter 11 

8.1 Assembly and Commissioning 


8.1.1 Assembly instructions 

8.1.2 3.9, 4.0 and 4.1, Insertion of rack 

8.1.3 Commissioning 

8.1.4 Maintenance & Lubrication intervals and quantity for lifgo 

8.1.5 Lubrication intervals for guide blocks and guide rail 

8.1.6 VEAS Assembly 

9.1 Modular construction of a lifting system an assembly example 


9.1.1 Mounting instructions for lifting device 

10.1 Incidentals 


10.1.1 Coupling nut 

10.1.2 Coupling plates 

10.1.3 Formular collecting 

10.1.4 Data transfer 

11.1 Terms 

11.1.1 Terms and Conditions of Sale and Delivery 

11.1.2 Notes 




Chapter 1 

�LEANTECHNIK AG, Im Lipperfeld 7c D - 46047 Oberhausen , �..49 (0) 208 - 49 52 5 - 0, Fax -18 www.leantechnik.com info@leantechnik.com 

Types 

lifgo ® 

lifgo ® linear 

Schlüter-Lifter ® SL 

References (summary) 

Applications

Chapter 1 

1.1 References (summary) 

• ABB 

• AEG Hausgeräte GmbH 

• Agfa Gevaert AG 

• AUDI AG 

• AUTOEUROPA 

• BENTELER AG 

• BMW AG 

• BMW Motorsport 

• BRAUN GmbH 

• BSH BOSCH UND SIEMENS Hausgeräte GmbH 

• COMAU SYSTEMS S.P.A. (Italien, Indien) 

• CONTINENTAL AG 

• DAIMLER CHRYSLER AG 

• DEMAG ERGOTECH 

• EDAG AG 

• FASTI Carl.Aug. Fastenrath GmbH & Co.KG 

• FLABEG GmbH & Co.KG 

• FORD AG (Global) 

• KRUPP DRAUZ 

• KUKA Schweißanlagen GmbH 

• KÜPPERSBUSCH GmbH 

• LÄPPLE GmbH & Co.KG 

• MAN Nutzfahrzeuge AG 

• MIELE + Cie. GmbH & Co.KG 

• MÜLLER WEINGARTEN AG 

• NOTHELFER GmbH 

• OPEL AG (Deutschland, Spanien) 

• RHEINZINK GmbH & Co.KG 

• SCHULER AUTOMATION GmbH & Co.KG 

• SCHULER CARTEC GmbH & Co.KG 

• SEAT S.A. 

• SIEMENS-MATSUSHITA Compon. GmbH & Co.KG 

• SIEMPELKAMP GmbH & Co.KG 

• SKODA AUTO A.S. 

• THYSSEN Umformtechnik GmbH 

• VIESSMANN-WERKE GmbH & Co.KG 

• VOLKSWAGEN AG 

• VOLVO PERSONVAGNAR AB 

• WESER METALL Umformtechnik GmbH 

• WIELAND-WERKE AG 

• WITTE Umformtechnik GmbH & Co.KG 

• YTONG DEUTSCHLAND AG 



Chapter 1 

1.2 Application areas for lifgo ® units 

traction - pushing - lifting – lift and shift - lowering - turning - tipping - swiveling 

Synchronous motion systems in the automation- manufacturing- and transfer techniques 

car industry ceramic industry foodstuff industry 

structural chemical engineering railway industry glass industry 

white goods manufacturing aerospace industry packaging processing 

plastics processing wood processing tyre manufacture 

packaging industry furniture industry shipbuilding industry 

power generation 

Applications Examples 

lifting systems 

- vibration free synchronous lifting table 

- vibration free secondary positioning of broaching tool 

load lift systems 

- lift station for belt conveyor 

- lifting column system for roller-conveyor 

lifting table 

- final assembly lift station 

- lifting table for automatic bending machine 

- lift station – automotive industry 

- engine/transmission lift station 

- lift station for automotive “modeling” table 

- hand operated precision lifting tables for scientific instruments 

press transfer system 

- three-axis press transfer system 

- 2-axis transfer table system 

lift and tilt system 

- body tilt system with vertical adjustment 

- tilt system for roller conveyor handling large steel sheets 

lift and shift (shuttle) system 

- mono-rail shuttle for automotive supplier 

- mono-rail shuttle for con-rod machining 

- suspended monorail shuttle system for transport of U-Frames for sliding roof 

- standing double beam system 

advance and stacking system 

- chipboard stacking system 

- positioning system 

- footstep between railway carriage and railway platform 

die automation 

- double-headed die tool set 

- de-burring press die operation 

- re-build of die with lifter system 

centering system 

- centering and lift system for press components prior to robotic stage 

- centering of dies to carcass in tyre production 

- synchronous centering for glass sheet manufacturing and stacking 






Chapter 2 


Typ 

lifgo ® 

Technical Introduction 

System - Components

Chapter 2 


2.1.1 Improving successful products 

lifgo is a modular constructed lifting system, which can be used in the widest possible fields of 

application. With just one basic arrangement (for each particular model) the module, with which all 

the motional systems are interconnected, is formed. By means of the four models available, the 

lifting and moving of small to heavy loads can be accomplished rapidly. The innovative design is 

based on the principle of a rack and pinion drive system, and follows the tradition of our proven 

Schlüter lifters ® . 

The objective of the new development was to provide a user-friendly modular system, with the 

requirement: 

1. to translate greater outputs using smaller sizes of modules 

2. to increase flexibility by increasing the range of application and 

3. to reduce accessories to a minimum, yet to retain and improve the „ clip and go „® 

rapid assembly system. 

2.1.2 Advantages of the lifting system 

� Smaller size module with greater outputs 

� Logical progression in output capacities between all the models 

lifting load of 1 kg to 8,000 kg 

transverse force of 1 kg to 11.050 kg 

� One basic design for each model 

� Easy fitting during installation and assembly due to identical design 

and method of operation for all models 

� High acceleration and operating speeds (load dependent) 

� All faces of the module casing can be used as mating and mounting faces when assembling 

� Rapid „clip and go ®“ assembly for the entire lifter system 

� Fewer accessories with flexibility in their application, suitable for direct 

mounting 

� The rack is guided by four ball-race bearings. It guarantees exact guide with 

slight deviation and due to the design of rack they pickup high moment of flexion. 

� Greater absorption of transverse forces by the gear tooth rack, thus providing 

excellent guidance capability 



Chapter 2 


2.1.3 Advantages of the lifter 

The lifgo lifter is a completely new concept in terms of the design. Only the principle of the rack and 

pinion drive has been retained. The casing is fully enclosed on all sides and is totally unaffected by 

external influences, such as spray and pressurised water. This applies equally to all necessary 

attachments. The rack is guided by four ball-race bearings and is sealed on three sides. As a result, 

any escape of lubricant (after the commissioning phase) and any ingress of dirt is prevented. The 

racks are able to absorb substantial lateral forces and thus in axial direction adopt the task of acting 

as guides (transverse forces). Further guides are unnecessary, which reduces costs. The pinion 

shaft located in the casing is provided with a hollow profile. Upon insertion of the profiled shaft, a 

frictionally interlocking interface is created between the lifters or between the lifter(s) and the 

motor(s). On both ends is seated a centring ring around the pinion shaft. Its task is to accept all 

rotating attachments which rotate around the axis, such as gearmotors, drive block, thrust ring, slip 

ring or bearer block. 

2.1.4 Various positional set-ups of the lifter 

The cubic design of the lifgo lifter enables various combinations of set-up to be effected. Centring 

pins in each mounting face facilitate ease of alignment and assembly. 

The lifgo lifter can be assembled in six differing positions - the example here illustrates the lifter in 

single module mode, the „ single lifter“. 



Chapter 2 


2.1.5 Combination 

In addition to those already shown there are still further possible assembly options such as shown 

below. Is not necessary to assemble them adjacent to each other. Please refer here to chapter 2, 

sections 2.2.2.1 – 2.2.2.4 Application – examples. 

Two single lifters can be assembled in any position in relation to each other uncreasing the 

combinations accordingly. 

horizontal - vertical on left side horizontal - 

vertical on right side aligned 

Positioning of the lifter possible on the opposite side or positioned separately! 

Use of two lifgo lifter at 90° to each other - shown here the use of a „double lifter“. 

2.1.6 Using the lifter as a rotating and pivoting mechanism 

By using two modules (of the same model) or bearer blocks, the lifgo lifter system can be used as 

rotating and pivoting unit. It is also possible to use combinations off lifters and bearer blocks. 

Furthermore, in reverse sequence rotary, linear motion can be converted. 



Chapter 2 

2.2 Systemkomponenten 

2.2.1 Accessories for the lifter 

By the use of accessories the lifgo lifter can be united to form a lifgo system. Each accessory is 

dimensioned to suit the particular size of model on which it is be used, and is identical in its design in 

each case. The small number of flexible accessories fulfil a multitude of requirements. They are 

broken down into four main groups: 

1. Accessories - for the rack connections and protection against wear, differential/ heavy load 

coupling, protective rack cover, rack coupling for pneumatic and hydraulic cylinder 

2. Accessories - for making a rotational connecting joint (torsionally rigid) 

profiled shaft, locking ring, universal shaft joints 

3. Accessories - for attaching the casing mounting plates, fixing brackets 

4. Accessories - for lifgo drives - linear and rotary drives servo-motors, servo drive 

block, threephase current, servo gear drive motor, pneumatic cylinder, hydraulic cylinder 

2.2.2 Applications - examples 

The following pages illustrate the lifgo system by depicting typical application examples. You may 

well recognise a concept which is appropriate for your specific problem and if not we would be 

pleased to advise. 

Beneath the illustrations are explanatory notes and where necessary, examples of calculations. In 

the sample calculations the lifting force value (FH) is defined in Newton’s (N) in all cases. 

The following lifting force values are used: 

lifgo ® 3.9 FH = 550 N/ unit 

lifgo ® 4.0 FH = 1.800 N/ unit 

lifgo ® 4.1 FH = 3.600 N/ unit 

lifgo ® 4.3 FH = 15.800 N/ unit 

lifgo ® 4.5 FH = 23.100 N/ unit 

lifgo ® 4.7 FH = 80.000 N/ unit 

Please Note: Refer to chapter 3, sections 3.1.1 - for Technical specification. 



Chapter 2 


i 

2.2.2.1 Applications - examples 

Example 1: lifgo system geometry in standard design (pneumatic operated) 

The lifgo system here represents a standard arrangement. It can, for example, be used in press-tool 

dies. Advantage: greater load capacity for a small installation space, plus high stroke speed - 25 

cyclic strokes/min. The pneumatic cylinder pulls the rack through the lifgo casing and rotates the 

pinion shaft having a hollow profile. By means of the inserted profiled shaft, a friction locking 

interface is created between the units. The rotary motion of the pinion shaft in the first unit (horizontal 

racks) is transmitted to the vertical drive lifgo unit. This moves the rack upwards. Due to the positive 

close-tolerances mechanical connection this motional sequence occurs simultaneously for all vertical 

units. As a consequence, you have a synchronous lift system. Synchronisation is also assured by the 

distributed application of the load. In this set-up the horizontal units fulfils the function of a primary 

unit. This means it distributes the lifting force to the vertical units and, as a consequence carry the 

greatest load. Load distribution then occurs if the load is transmitted via the pinion and profiled shaft 

(rotational interface) to a neighbouring unit. For a simple push-pull application the whole thrust force 

can be transmitted. 

Please Note: Care should be taken to ensure that the introduced lifting force does not exceed the 

maximum permitted lifting force of the (horizontal) primary unit! Please note the 

technical data! 

Calculation to example 1: 

To show how of the calculation is made the values from chapter 2, sections 2.2.2 have been used! 

Efficiency factors are not taken into account. (refer chapter 3, sections 3.1.1 Technical 

specification.) In using two primary lifgo units, the entire lifting force can be applied twice. This can 

then be transferred to the lifgo lifter for each half. The pneumatic cylinder can thus introduce the 

doubled force of the primary units. 

For example 1geometry there is a lifting force as follows: 

lifgo ® 3.9 FH = 550 N x 2 = FH = 1.100 N = cylinder force rating 

lifgo ® 4.0 FH = 1.800 N x 2 = FH = 3.600 N = cylinder force rating 







Chapter 2 


2.2.2.2 Applications – example 2, lifgo Systematic arrangement (pneumatic) 

This arrangement is further development to example 1. The lifting forces are distributed on 6 lifgo 

lifters instead of 4. Since all attachments are plug assembled together, such an enhancement is 

achieved without any problems. Based on the unchanged number of primary units, the total lifting 

force of the system is equal to that of example 1. 

2.2.2.3 Applications – example 3, lifgo Systematic arrangement (pneumatic) 

Four primary lifgo units were used in this arrangement. Calculated, this means for: 

lifgo ® 3.9 FH = 550 N x 4 = FH = 2.200 N = cylinder force 

lifgo ® 4.0 FH = 1.800 N x 4 = FH = 7.200 N = cylinder force 







Chapter 2 


2.2.2.4 Applications – example 4, system arrangement using a servo gearmotor 

In this case, the drive is a servomotor. Here also, the drive unit is connected to the lifgo lifters via the 

profile shafts which are pushed into the lifters, providing a frictional connection. For all lifgo sizes, the 

profile shaft has been designed in such a way that upon insertion, the position of the pinions in 

relation to one another is synchronised. This ensures that the vertical racks will always have the 

same positional height. Incorrect assembly is thus impossible. Under computer control, the 

servomotor moves to positions with precise repeatability. When several drives are used, one motor 

assumes the control function, which is mirrored by all of the other drives to the same degree of 

accuracy. 

Calculation to example 4: 

The power distribution 3-way gear units have been dimensioned so that they can transmit the 

maximum torque of two lifgo units in both axial directions. The total lift force is therefore 4 times that 

of a single lifgo unit (please see chapter 2, sections 2.2.2 values). 

Calculated, this means: 

lifgo ® 3.9 FH = 550 N x 4 = FH = 2.200 N = lift force 

lifgo ® 4.0 FH = 1.800 N x 4 = FH = 7.200 N = lift force 







Chapter 2 


2.2.3 Modular designed 

The solutions depicted here and in more detail in the separate Application Guide selection only of 

practical applications. Most systems make full use of the lifgo “clip and go” assembly system which 

simplifies both design layout work and later assembly. In addition however it will be found that 

modifications to later for product changes can be made by simple adjustment or at the worst be 

interchanging some components eg longer racks for uncreased stroke. Our precise manufacture 

provides guaranteed service life with minimal maintenance. As a result, you have more time to spend 

on finding the constructive solution and can build this using the lifgo modular system into complete 

units. 

We will be only too pleased to help in finding a solution ! 



Chapter 2 


2.2.4 Flexible systems - variants 

basic models lifgo 3.9 – 4.7 

The six basic types can be combinated and extended (each type) in different variants. 

Lifgo-double - design 

With two rack gear guides, 

e.g. for acquiring (grab function), 

telescoping or for centring parts etc 

lifgo rack for integrated feed of medium 

air pressure, - vacuum, - cooling liquid, - alkaline solution (conditional) 




Chapter 3 


Types 

lifgo ® 


Technical Data 

Gear tooth rack, guide rail and 

Accessories

Chapter 3 

3.1 Type lifgo ® 3.9 – 4.7 

i 


lifgo ® 

Unit 3.9 4.0 4.1 4.3 4.5 4.7 

Casing bearing force N 3.300 5.800 12.000 26.000 63.000 180.000 

1) Force of stroke N 550 1.800 3.500 15.800 23.100 80.000 

Speed of stroke m/s 1,000 0,830 0,830 0,500 0,416 0,250 

Speed of stroke m/min. 60 50 50 30 25 15 

Acceleration max. m/s² 5 7 10 4 3 2 

Torque max. Nm 3,3 18 70 475 1.040 7800 

Pitch circle diameter mm 12 20 40 60 90 196 

Gearing mm/α-1° mm 0,1047 0,1745 0,349 0,524 0,785 1,710 

Gearing stroke/360° mm 37,69 62,83 125,66 188,49 282,74 615,75 

Temperature resistance 

Efficiency 1 0,92 0,92 0,92 0,92 0,92 0,90 

Profile shaft - 

„clip and go ® “ joint 

º C 80 80 80 80 80 80 

VK 6 

square 

PG 14 

polygonal 


PG 20 

polygonal 

KW 42 

spline shaft 

SW 46 

hexagon 


Flange 

Acc. Project 

Weight kg 0,55 1,2 3 12 39 162 

1) Values given for max. acceleration a = 5 m/s². Chapter 3, sections 3.1.2, heed FMA calculation. 

Please Note: An estimation of the service life in connection with the rack gear should be 

requested as per the project data!

Chapter 3 

3.1 Type lifgo ® 3.9 – 4.7 

i 

i 


Bearing forces in the technical specification (Chapter 2, sections 2.2.2) are based on the max. 

acceleration value a (m/s²). If you alter the rate of acceleration, then the bearing force alters too. 

Note Less acceleration (a= m/s²) > greater bearing force 

Higher acceleration (a= m/s²) > less bearing force. 

In the layout of the system, consider the function of the lifgo modules as primary unit, 

because even here the total loading on any one lifter must not be exceeded. 

FMA - calculation 

FL - Static loading [N] FZ - Static loading on rack [N] 

mL - Weight of lifting load [kg] mZ - Weight of rack [kg] 

a - Acceleration of drive [m/s²] > servo-motor, pneumatic cylinder 

Formula 1 

Lifting load - vertical FV = FL + FZ + [(mL + mZ) x a] + 20 N x 1,08 = [N] 

Lifting load - horizontal FH = [(mL + mZ) x a] + 20 N x 1,08 = [N] 


In arranging the layout, the technical scope of the accessories in terms of application is to be taken 

into account. All components which transmit forces for drawing or pushing or transmit moments of 

torque can be found in the following table. The data given correspond to the maximum values and 

must not be exceeded. They relate to the tabulated values of chapter 3, sections 3.1.1. 

lifgo ® Unit 3.9 4.0 4.1 4.3 4.5 4.7 

Profile shaft Nm 5 25 110 900 2.100 Acc. Project 

Straightness mm/m 0,3 0,3 0,3 0,3 0,3 Acc. Project 

Torsional movement °/m 1 1 1 1 1 Acc. Project 

Rack buckling length mm 0,055 0,120 0,09 0,10 0,15 Acc. Project 

Profile shaft backlash mm 0,020 0,100 0,085 0,020 0,090 --- 

Differential-coupling 

No./ force vectors pcs. 7 7 9 5 4 Acc. Project 

Coupling unit 

Pushing/pulling force F N 6.500 18.000 24.000 63.000 99.000 Acc. Project 


requested as per the project data! 



Chapter 3 

3.1 Type lifgo ® 3.9 – 4.7 

i 


lifgo ® unit 3.9 4.0 4.1 4.3 4.5 4.7 

A mm 59 78 107,2 175,2 265 502 

B mm 59 78 107,2 175,2 265 502 

C mm 47 63 70 120 170 320 

D mm 44 60,05 85,95 137,7 206 407 

E mm 38 50 45 79 120 270 

F mm 13 20 35 54 110 165 

G mm 29,5 39 53,6 87,6 132,5 251 

H mm 22 29 32,6 48,1 55 161 

I mm 15 20 42 79 115 270 

Dowel hole K mm Ø 4x4 6x9 6x9 6x9 6x9 20x20 

L mm M 5x6 M 5x10 M 8x10 M 10x17 M 16x26 Acc. Project 

M mm M 5x10 M 5x13 M 8x13 M 10x20 M 16x28 Acc. Project 

ØN x P mm 19K6x3 26K6x1,5 47K6x1 58H7x2 100H7x2 140H7x4 

O mm 5,5 10 14 14,5 32,5 75 

Q mm M6 M10x1 M10x1 M10x1 M10x1 Acc. Project 

T mm 12 24 48 87,6 132,5 251 

W mm TN/TN TN/TN M6/TN M6/TN M8x1/M8x1 Acc. Project 

Part-No. Standard 39-059-047 40-088-044 41-107-076 43-175-125 45-265-189 47-502-320 

weight kg 0,55 1,2 3 12 39 162 

Please Note: Tolerance band precision / interference hole ± 0,03 

Lubricating holes, threaded or cone nipple (TN) 

During the design phase, please ensure that the lubrication holes remain 

accessible 



Chapter 3 

3.1 Type lifgo ® 3.9 – 4.7 

i 

i 

3.1.5 Unit drilling pattern - Coupling dimensions 

In the following table are the drilling patterns of the three lifgo units (for direct assembly). For the use 

of brackets refer to chapter 5, sections 5.1.9 - fixing brackets or chapter 5, sections 5.1.10 - 

mounting plates. 

Please Note: The drilling patterns are marked according to the position (Floor space) chapter 2, 

sections 2.1.4, ”Various positional set-ups for the lifter”. 

1 

2 

a 

a 

b b 

4 x drilled hole e 

c d d c 

j 

2 x dowel hole f 2 x dowel hole f 

k 

R = 3 

l 



R = 3 


3 4 

2 x dowel hole f 2 x dowel hole f 


k 


lifgo ® Unit 3.9 4.0 4.1 4.3 4.5 4.7 

a mm 38 50 45 79 120 

b mm 30 20 42 79 115 

c mm 7,5 10 21 39,5 77,5 

d mm 5,5 10 14 14,5 32,5 

e mm Ø 5,5 M5 Ø 6 M5 Ø 9 M8 Ø11 M10 Ø17 M16 

f mm Ø 4 H7 Ø 6 H7 Ø 6 H7 Ø 6 H7 Ø 6 H7 

j mm 5 8 15 26,5 40 

k mm 18 22 28 48 67 

l mm 18 22 26 48 67 

Please Note: Tolerance band precision / interference holes ± 0,03 

j 

a 

a 

Special connection.. Please 

request drawing

Kapitel 3 

3.1 Types lifgo ® 3.9 – 4.7 

i 


This mechanical arrest system for the model types listed above includes the following features: 

- Precise interlocking interface, robust, designed for every module dependent position. 

- Prevents uncontrolled downward travel should the power fail 

The VEAS is used to move the system to a “maintenance and repair” position and secure it in this 

position. It is also used to lock the system in a particular access position. This is done by first 

releasing the pneumatic cylinder; the vertical drive then initiates downward travel at creep speed until 

the locking bolt of the VEAS slides into place. 

The system is now “mechanically secured”. Maintenance staff can now safely access the area. In 

order to release the locked system, the pneumatic cylinder is energised and the VEAS is lifted 2xto at 

creep speed working against the load. The system is now released. 

The VEAS mechanism can also be used to prevent uncontrolled downward motion in the system in 

the event of a power failure.. 

Important: VEAS is not a brake with which an EMERGENCY STOP can be carried out. VEAS 

should only be operated once the system has come to a halt. If the VEAS is operated while the 

system is in motion, then the lifgo ® and the VEAS is to be immediately replaced. The VEAS locks 

the system in one direction only (the direction against the load). The other direction is not blocked 

(ratchet). Each VEAS component is designed to secure one load point only. In order to ensure 

correct functionalty at all times, the VEAS should be operated at least once per week. The VEAS 

mechanism complies with the requirements of safety class 2. 

lifgo ® Unit 4.0 VEAS 4.1 VEAS 4.3 VEAS 4.5 VEAS 4.7 VEAS 

Casing bearing 

force N --- 12.000 26.000 --- --- 

brake holding load N --- 3.500 15.800 --- --- 

Part-No. 

Pneumatic cylinder 

version 

Pneumatic Cylinder Version: 

Voltage: 24 V direct current 0.83 Ampere 

Inductive switch (IS) has been preset at the factory! 

2 x PNP make contacts 24 V DC 

On Inquiry 41-107-101 43-175-101 On Inquiry On Inquiry 

weight kg --- 3,5 13,5 --- --- 



Chapter 3 

3.1 Types lifgo ® 3.9 – 4.7 

i 

3.1.7 VEAS (Vertical Energy Arrest System) specification 

Pneumatic cylinder version 

lifgo ® Unit 4.0 VEAS 4.1 VEAS 4.3 VEAS 4.5 VEAS 4.7 VEAS 

Part-no. 

R mm --- 53 58 --- --- 

ØS mm --- 29 36 --- --- 

T mm --- 44 70 --- --- 

U mm --- 77 - 87 95 - 110 --- --- 

V mm --- 29 38 --- --- 

pneumatic cylinder 

version 

On Inquiry 41-107-101 43-175-101 On Inquiry On Inquiry 

weight kg --- 3,5 13,5 --- --- 

Please Note: During the design phase, please ensure that the lubrication holes remain accessible!! 

An estimation of the service life in connection with the rack gear should be 




Chapter 3 

3.1 Types lifgo ® 3.9 – 4.7 

i 

3.1.8 Unit Double specification 

lifgo ® Unit 3.9 4.0 4.1 4.3 

A mm 59 78 107,2 175,2 

B mm 59 78 107,2 175,2 

C mm 47 63 70 120 

D mm 44 60,05 85,95 137,7 

E mm 38 50 45 79 

G mm 29,5 39 53,6 87,6 

I mm 15 20 42 79 

Dowel hole K mm Ø 4x4 6x9 6x9 6x9 

L mm M 5x6 M 5x10 M 8x10 M 10x17 

M mm M 5x10 M 5x13 M 8x13 M 10x20 

ØN x P mm 19K6x3 26K6x1,5 47K6x1 58H7x2 

O mm 5,5 10 14 14,5 

Q mm M6/M6 M10x1/ M10x1 M10x1/ M10x1 M10x1/ M10x1 

W mm TN/TN TN/TN M6/TN 1) M6/TN 1) 

Part-no. Standard 39-059-050 40-088-050 41-107-080 43-175-135 

weight kg/m 0,65 1,42 3,50 14,40 

Please Note: Tolerance band precision / interference hole ± 0,03 

Lubricating holes (W), threaded or cone nipple (TN) 


accessible! 



Chapter 3 

3.1 Types lifgo ® 3.9 – 4.7 

3.1.9 Conversion Factors metric / USA - GB 

Metric units USA - GB units 

Mass Kilogramm 1,0000 kg pound mass 2,20500 lbm 

0,4535 kg 1,00000 lbm 

Force Newton 1,0000 N pound force 0,22480 lbf 

4,4830 N 1,00000 lbf 

Torque Newtonmeter 1,0000 Nm Inches, 

pound 


2,20510 in.lb 

0,1127 Nm 1,00000 in.lb 

Length Meter 1,0000 m feet 3,28100 ft 

0,3048 m 1,00000 ft 

Meter 1,0000 m inches 39,37000 in 

0,2540 m 1,00000 in 

Millimeter 1,0000 mm inches 0,03940 in 

25,4000 mm 1,00000 in 

Speed Meter/minute 1,0000 m/min. feet/minute 3,28100 ft/min. 

0,3048 m/min. 1,00000 ft/min. 

1,0000 m/min. 0,05468 ft/s 

Meter/Second 1,0000 m/s feet/second 3,28100 ft/s 

0,3048 m/s 1,00000 ft/s 

18,2900 m/min. 1,00000 ft/s 

Acceleration Meter/Second² 1,0000 m/s² feet/second² 3,28100 ft/s² 

0,3048 m/s² 1,00000 ft/s² 


Chapter 3 



i 

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i 

i 


The rack is used as a pull or push action rack and, at the same time, convents linear motion into 

rotary (angular) motion. It is also possible to effect the action in reserve. Sequence (angular to 

linear). With the rack-to-pinion shaft interface, positioning of +/- 0,01 mm can be accomplished with 

accurate repetition. 

The rack is guided by four ball-race bearings and can therefore absorb transverse force. 

Consequently, it is suitable as a guide. Additional components are not needed. 

Threads are provided at the ends, which are for attaching accessories, i.e. a differential couplings, a 

coupling unit (for pneumatic cylinder) or a heavy duty coupling, for effecting an interface for pulling or 

pushing actions. In addition. The threads are used for accepting attachments, e.g. devices, which 

can be directly mounted. 

The rack is supplied in lengths in accordance with your requirement. Please state the length, 

defined by the number or teeth. Refer to chapter 3, sections 3.2.2, Equation 2 and 3. 

A special rack gear is used for particularly demanding, constant operation with high cycle rates in 

three shifts. Please be sure to request a calculation of service life. This model is available in 

lengths of up to 1,500 mm. 

lifgo ® Unit 3.9 4.0 4.1 4.3 4.5 4.7 

Part-no. 

Part-no. 

A mm 7,2 8,50 9,50 17,35 28,85 50 

B mm M6 M8 M10 M16 M20 M36 

C mm 15 25 25 44 50 40 

D mm 9 12,05 15 22,5 31 65 

E mm 15 20 23 45 63 125 

m mm 0,5 1,00 2,50 2,50 2,50 7 

to mm 1,5708 3,1416 7,8540 7,8540 7,8540 21,9911 

rack 

standard 12-39-00 12-40-00 12-41-00 12-43-00 12-45-00 12-47-00 

rack 

special --- 12-40-01 12-41-01 12-43-01 12-45-01 12-47-01 

weight kg/m 1,37 2,10 3,10 10,40 22,20 75,20 

Note for ordering: Always add the number of teeth to the item reference no. by Z = 

Example: Rack for lifgo 4.1, length 162,85 mm > 12-41-00, Z = 21. 



Chapter 3 



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3.2.2 Gear tooth rack calculation of length 

Racks are manufactured in length’s according to your application. These should be identical within a 

given system. Ascertain the required length by calculating the number of teeth „Z“. This must be 

added to the item reference number of ordering purposes. 

Proceed as follows: 

Firstly, the theoretical number of teeth „Zt“ of the rack is determined. The values, i.e. the length of 

lifgo casing(s), the required stroke, the installation space for protective rack cover and, if needed, the 

installation space for any attachments are entered into „equation 2” 

Round up the value to the next full number. 

The actual length of the rack „Xi“ is determined by „equation 3”. 

Calculation: 

Zt - theoretical number of teeth GL - length of lifgo casing (s) 

Herf- required stroke LZS - Installation space for protect. rack cover 

K1 - constant = 5 t0 - tooth pitch = (1,5708; 3,1416; 7,8540; 21,9911) 

Z - actual number of teeth B - Installation space according to drawing plan of the 

System 

Xi - actual length of rack BS - Installation space for the lubrication plate 

TS - Installation space of rack 

Please Note: Round up this value to the next full number. 

Equation 2 

Zt = (GL + Herf + LZS + B + BS + TS + K1) : t 0 = > round up to a whole number = Z number of teeth 

Equation 3 

X i = Z x t0 = mm 

Example: 

A system containing lifgo 4.1 should allow for a stroke of 120 mm. The rack must traverse a beam 

having a depth of 50 mm. A protective rack cover is not provide. Z = ?, X i = ? 

Zt = (107,2 + 120 + 0 + 50 + 0 + 0 + 5) : 7,8540 = 35,93 > Z = 36 qty. off 

Result: Rack with 36 teeth. > Part No. 12-41-00, Z = 36 

Xi = 36 x 7,8540 = 282,744 mm 

Result: Total length of rack 282,7 mm. 

Please Note: Refer to chapter 3, sections 3.2.6, equation 4 and 5 for calculation the installation 

space for the protective rack cover (L ZS). 

When using, please take into account the installation space required for the lubrication 

plate (Bs), chapter 5, sections 5.1.11 and the AZ mounting plate (Ts), chapter 3, 

sections 3.2.4, when calculating the toothed rack. 



Chapter 3 



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3.2.3 Lateral load capacity - rack drives 

The rack profiles for lifgo lifters are fully supported in linear bearings. As a consequence, the rack 

profiles can accommodate high lateral loads. The maximum static and dynamic torque (X, Y and Z 

axis) for each size of lifgo unit is shown in the table below. 

50% of the linear force rating can be applied at a distance of 100 mm from the lifgo unit! 

Check your complete Force Rate, this must not be exceeded under any circumstances. 

F x 0,5 

100 

Y Y 

Z 

Z 

lifgo ® Unit 3.9 4.0 4.1 4.3 4.5 4.7 

M ty = M tz dyn. Nm 30 100 270 1.300 4.600 57.000 

M ty = M tz stat. Nm 70 165 510 2.430 8.100 99.140 

M tx = dyn. Nm 55 190 330 1.800 6.400 72.400 

M tx = stat. Nm 130 310 650 3.450 11.400 125.400 

Please Note: Should you need to calculate the bending distance of the rack ends, please contact 

our technical sales office. 



X 

X

Chapter 3 



i 

3.2.4 Rack Attachment Points 

1. Attachment points on end face and sides 

with holes for dowel pins and/or holes for 

screws. 

2. Attachment points on sides and end face. 

3. AZ mounting plate set, consisting of: 

� Upper welded and fastening plate 

� Lower fastening plate with rack-shaped 

seat ensuring that the rack is secured 

(interlocking) without twisting and tilting 

4. AZ mounting plate set (as in 3, above) with 

additional fully enclosed rack cover 

(bellows). The bellows fastening plate can 

be screwed to the AZ mounting plate from 

below (see hole J). 

Mounting plate with toothed rack profile Upper welded and fastening plate 

AZ-Mounting 

Plate 

Unit 3.9 4.0 4.1 4.3 4.5 4.7 

A mm 50 50 60 120 170 ---- 

B mm 50 50 70 136 170 ---- 

C mm 50 50 60 136 170 ---- 

D mm 38 30 45 79 120 ---- 

E mm 30 38 42 79 120 ---- 

F mm 24,5 32,4 38,2 70 100 ---- 

G mm 8,7 10,5 9,2 17 5,5 ---- 

I mm M4 M4 M8 M10 M16 ---- 

J mm M3 M3 M3 M4 M4 ---- 

K mm Ø4H7 Ø6H7 Ø6H7 Ø6H7 Ø6H7 ---- 

T mm 10 10 10 15 20 ---- 

Part-no. 

Mounting 

Plate Set 16-39-50 16-40-50 16-41-50 16-43-50 16-45-50 ---weight 

kg 0,350 0,320 0,480 3,400 8,080 ---- 

Part-no. 

Mounting 

Plate Rack 16-39-51 16-40-51 16-41-51 16-43-51 16-45-51 ---weight 

kg 0,170 0,150 0,250 1,630 3,900 ---- 

Please Note: Including fastening materials. 



4 

3 

2 

1

Chapter 3 



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3.2.5 Rack cover specification 

In case of high levels of pollution and welding plants, the use of protective rack covers is essential. 

Rack guides and casings are thus protected from excessive wear. Fixturing is done either using 

Velcro on both sides which is simply pressed onto the facing plate or the Velcro is on one side only 

(the lifgo side) and is complemented with a plate on the rack side. Please be sure to take into 

account the installation space required, see chapter 3, section 3.2.6. 

Please Note: In order to pre-empt the failure of the Velcro fastenings in the case of extreme 

contamination (e.g. grease) the bellows fastening should be used. 

Fitting and removal can be done in a matter of seconds. The individual folds of the rack cover are 

guided over the rack gear by specially shaped intermediate plates. This ensures that a blockage 

caused by obstruction of the gearing cannot occur. 

The rack cover is supplied according to your requirements . Please state the length, defined by the 

number of folds. Rack cover supplied as an assembly unit, including screws. Calculation chapter 3, 

sections 3.2.6, Equation 4 and 5. 

Important Note: Ambient temperature max. 80° C. 

lifgo ® Unit 3.9 4.0 4.1 4.3 4.5 4.7 

A mm 45 46 48 85 120 --- 

B1 mm 50 43 50 80 118 --- 

(Velcro) C1 mm 10 10 10 11 13 --- 

(Plate) C2 mm 8 8 8 8 9 --- 

a mm 3,5 3,0 3,0 3,0 3,0 --- 

c mm 19,5 13 13 18 40 --- 

Part-no. Fully 

Velcro / Plate 12-39-20 12-40-20 12-41-20 12-43-20 12-45-20 On Inquiry 

Part-no. Fully 

Velcro / Velcro 12-39-21 12-40-21 12-41-21 12-43-21 12-45-21 On Inquiry 

Part-no. Velcro 

fastening 12-39-29 12-40-29 12-41-29 12-43-29 12-45-29 On Inquiry 

Note for ordering: Including fastening materials 

Please add the number of folds to the item ref. number when ordering by F=. 

Example: Expansion bellows, full protection for lifgo 4.1, length 57 mm > 12-41-20, F=13 

Please Note: During the design phase, please ensure that the lubrication holes remain accessible! 



Chapter 3 



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3.2.6 Rack cover calculation of length 

Rack covers are manufactured according to your applications. These should be identical within a 

given system. Ascertain the required length by calculating the number of folds „F“. The must be 

added to the item reference number for ordering purposes. Two versions, (depending on the model) 

are calculated in the same manner. 

Proceed as follows: 

Firstly, the theoretical number of folds „F“ of the cover is determined. The values, i.e. required stroke 

or the extended length of the rack, are entered into „equation 5“. 

Calculation: 

F t - theoretical number of fold a - installation length - min. per fold 

H erf - required stroke b (c-a) - extended length - max. per fold 

C1 + C2 - installation space c - draw-out length over all 

for Velcro fastener pads (Velcro/Plate) 

C1 + C1 - installation space 

for Velcro fastener pads (Velcro/Velcro) 

Please Note: Round up this value to the next full number. 

Equation 4 

F t = H erf : b = > round up to whole number = F[qty. off] 

Equation 5 

L ZS = F x a + C1 + C2 = mm 

Please Note: If, for design reasons, the lifter has to be installed to a greater depth than the length 

of the standard rack permits for effective operation, then the length of the rack must be manufactured 

correspondingly longer. This longer rack length can also be calculated by applying equation 3. 

However, if after calculating „L ZS“, it is found to be less than the extra depth involved, the rack need 

not be lengthened, and a standard rack would be still surface. 

Example: 

A system containing lifgo 4.1 should allow for a stroke of 130 mm. The rack cover should be used as 

a fully enclosed cover to ensure full protection. > F = ?, L ZS = ? 

F t = 130 mm : 10 = 13 > F = 13 qty. off 

Result: Rack cover with 13 folds Part No. 12-41-20, F = 13 

L ZS = 13 x 3,0 + 10 + 8 = 57 mm 

Result: The installation length of rack cover is 57 mm. 

Please Note: Length L ZS must be used in „equation 2“, chapter 3, sections 3.2.2. If two covers are 

provided for each rack, insert L ZS x 2 into the equation. 



Chapter 3 



3.2.7 Guide rail (without rack profile) 


Note: „n“= Qty. of hole 

Guide rail Unit 3.9 4.0 4.1 4.3 4.5 4.7 

A mm 16,20 20,55 24,25 39,85 ---- ---- 

B mm 15 20 23 45 ---- ---- 

C mm 4,4 6,0 7,0 14 ---- ---- 

D mm 7,4 9,4 11,0 20 ---- ---- 

E mm 5,9 7,4 9,1 16,4 ---- ---- 

F mm M5 M6 M6 M12 ---- ---- 

G mm 7,5 9,0 12,0 19,0 ---- ---- 

H mm 10 10 10 16 ---- ---- 

I mm 60 60 60 105 ---- ---- 

Part-no. 

for mounting 

from above rail 12-39-08 12-40-08 12-41-08 12-43-08 12-45-08 12-47-08 

for mounting 

from below rail 12-39-09 12-40-09 12-41-09 12-43-09 12-45-09 12-47-09 

according to 

customer’s 

specification rail 12-39-05 12-40-05 12-41-05 12-43-05 12-45-05 12-47-05 

weight kg/m 1,4 2,2 3,2 10,6 22,4 75,6 


Chapter 3 



i 

3.2.8 Rack guiding 

Rack guiding Unit 3.9 4.0 4.1 4.3 4.5 4.7 

A mm 59 78 107,2 175,2 ---- ---- 

B mm 47 63 70 120 ---- ---- 

C mm 24 30 36 60 ---- ---- 

D mm 19,65 25 30 50 ---- ---- 

E mm 24,55 32,4 38,2 70,0 ---- ---- 

F mm 15 20 42 79 ---- ---- 

G mm 38 50 45 79 ---- ---- 

ØH mm 4 X 4 6 X 9 6 X 9 6 X 9 ---- ---- 

I mm M5 X 6 M5 X 10 M8 X 10 M10 X 17 ---- ---- 

(lubrication hole) W mm TN/TN TN/TN M6/TN M6/TN ---- ---- 

Part-no. Standard 10-02-39 10-02-40 10-02-41 10-02-43 10-02-45 10-02-47 

weight kg 0,20 0,45 1,00 4,80 16,20 --- 


Cone nipple (TN) 


accessible! 



Chapter 3 

3.3 Line of lifgo ® linear 4.1 – 4.3 

i 


lifgo ® linear Unit 4.1 4.3 

a x b x c mm 107 x 70 x 88,95 175 x 120 x 132,15 

Casing bearing force N 8.000 17.000 

1) Force of stroke max. N 3.500 12.000 

Acceleration max. m/s² 10 10 

Speed of stroke m/s 2 2 

Speed of stroke m/min. 120 120 

Torque max. Nm 70 360 

Pitch circle diameter mm 40 60 

Gearing mm/α-1° mm 0,349 0,524 

Gearing stroke/360° mm 125,66 188,49 

Temperature resistance °C 80 80 

Efficiency 1 0,92 0,92 



PG 20 

Polygonal 


KW 42 

spline shaft 

Weight kg 3 12 

1) Values given for max. acceleration a = m/s². Chapter 3, sections 3.1.2, heed FMA calculation. 

Please Note: An estimation of the service life in connection with the rack gear should be requested 

as per the project data.! 


Chapter 3 


i 

3.3.2 linear unit specification 


A mm 88,95 132,15 

B mm 107 175 

C mm 70 120 

D mm 90 135 

E mm 45 79 

F mm 42 79 

G mm 48,15 67,65 

H mm Ø 60 90 

Ø I x P mm Ø 47 K6 tief 1,5 72 K6 tief 2 

J mm M 8x13 M 10x20 

Dowel hole K mm Ø 6x9 6x9 

L mm M 6x6 M 10x20 

M mm 27,95 36,15 

N mm 44 -- 

O mm 53 -- 

Q mm M10x1 (both side) M10x1 (both side) 

S 

W 

V 

mm 

mm 

mm 

43,95 

-- 

2xM10x1 (one side) 

90,15 

1) 

M6/TN 

-- 

Part-no. Standard 41-090-100 43-132-160 

weight kg 3 12 

Please Note: Tolerance band precision/ interference hole ± 0,02 

1) Front side threaded/opposite side lubrication nipple 


accessible! 



Chapter 3 


i 


This mechanical arrest system for the model types listed above includes the following features: 

- Precise interlocking interface, robust, designed for every module dependent position. 

- Prevents uncontrolled downward travel should the power fail 

The VEAS is used to move the system to a “maintenance and repair” position and secure it in this 

position. It is also used to lock the system in a particular access position. This is done by first 

releasing the pneumatic cylinder; the vertical drive then initiates downward travel at creep speed until 

the locking bolt of the VEAS slides into place. 

The system is now “mechanically secured”. Maintenance staff can now safely access the area. In 

order to release the locked system, the solenoid is energised and the VEAS is lifted 2xto at creep 

speed working against the load. The system is now released. 

The VEAS mechanism can also be used to prevent uncontrolled downward motion in the system in 

the event of a power failure.. 

Exploded drawing, Refer to chapter 3, sections 3.1.6 



system is in motion, then the lifgo® and the VEAS is to be immediately replaced. The VEAS locks 

the system in one direction only (the direction against the load). The other direction is not blocked 




lifgo ® linear Unit --- --- 4.3 VEAS --- --- 

Casing bearing force N --- --- 17.000 --- --- 

Force of stroke max N --- --- 12.000 --- --- 

Part-no. --- --- 43-132-100 --- --- 

weight kg --- --- 12 --- --- 



Chapter 3 


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3.3.4 lifgo linear VEAS unit specification 

Please Note: For dimensions not given here, please see chapter 3, page 3.3.2 

lifgo ® linear Unit --- --- 4.3 VEAS --- --- 

Part-no. 

E mm --- --- 79 --- --- 

J mm --- --- M10x20 --- --- 

K mm --- --- Ø6H7x9 --- --- 

MN mm --- --- 62,5 --- --- 

Q mm --- --- M10x1 --- --- 

R mm --- --- 58 --- --- 

S mm --- --- 36 --- --- 

T mm --- --- 70 --- --- 

U mm --- --- 58 --- --- 

V mm --- --- 37,5 --- --- 

X mm --- --- 42,5 --- --- 

Y mm --- --- 45 --- --- 

Z mm --- --- 20 --- --- 

pneumatic cylinder 

version --- On Inquiry 43-132-101 --- --- 

weight kg --- --- 12 --- --- 

Please Note: During the design phase, please ensure that the lubrication holes remain accessible! 





Chapter 3 


Line of lifgo ® linear 4.1 – 4.3 

i 

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3.4.1 linear gear tooth rack specification 

The gear teeth rack of the Lifgo® Linear in combination with the drive pinion converts rotary motion 

to a push-pull linear motion, or equally linear motion to rotary motion. The Lifgo® Linear rack drive 

with profiled ‘plug-in’ drive shaft can achieve a repeatability of +/-0.01mm. The profiled rack is 

guided all round by four recirculating ball bearing assemblies and is able to accommodate very high 

lateral forces. For this reason the profiled rack can be used as both drive and guide element 

avoiding the need for further components. 

The mounting face of the Lifgo® Linear rack is provided with tapped holes for assembly to base 

frame. Our recommended minimum finish: machined surfaces. Where two Lifgo® Linear rack 

rails are used with two drive units (or 4 etc) the linear thrust force is doubled (or quadrupled). 

Please Note: A special rack gear is used for particularly demanding, constant operation with high 

cycle rates in three shifts. Please be sure to request a calculation of service life. This model is 

available in lengths of up to 1,500 mm. 

The rack gear is manufactured to your specific requirements. Please define the length by stating 

the number of gear teeth. Please note that the rack gear is always divided (to) in a trough of the 

gearing. For lengths exceeding 509 gear teeth (3,998mm) the rack gear will be delivered in two or 

more parts. 


A mm 24,25 39,85 

B mm 23 45 

C mm 12 19 

D mm M8 M12 

E mm 18,25 37,31 R – R distance radius centre 

H mm 10 16 

I mm 60 105 

R mm 0,40 0,50 

Modul mm 2,50 2,50 

to mm 7,854 7,854 

Part-no. 

Part-no. 

Rack 

Standard 12-41-02 12-43-02 

Rack 

Sonder 12-41-03 12-43-03 

weight kg/m 3,1 10,4 



Chapter 3 


Line of lifgo ® linear 4.1 – 4.3 

i 

3.4.2 linear Rack guiding 

Rack guiding Unit 4.1 4.3 

A mm 107 175 

B mm 70 120 

C mm 31,05 52,85 

D mm 30 50 

E mm 38 70 

F mm 42 79 

G mm 45 79 

ØH mm 6 X 9 6 X 9 

I mm M8 X 9 M10 X 17 

J 

K 

Lubrication hole W 

Lubrication hole V 

mm 

mm 

mm 

mm 

-- 

21,4 

-- 

M6 (both side) 

8 

-- 

1) 

M6/TN 

-- 

Part-no. Standard 10-41-33 10-43-33 

weight kg 1,00 4,80 


1) Front side threaded/opposite side lubrication nipple (TN) 


accessible!! 



i 

Please Note: 

A suitable guide rail is to be 

found in chapter 3, section 

3.2.7, version: “screwed in 

place from above”




Chapter 4 


Types 


Technical Data 

Gear tooth rack and Accessories

Chapter 4 

4.1 Line of Schlüter-Lifter ® SL 

i 

4.1.1 Technical Data 

Schlüter-Lifter ® SL Unit SL 050 SL 150 

Casing bearing force N 4.000 10.000 

Force of stroke N 500 1.500 

Speed of stroke m/s 1,0 1,0 

Speed of stroke m/min. 60,0 60,0 

Torque max. Nm 5 30 

Pitch circle diameter mm 20 40 

Gearing mm/α-1° mm 0,1745 0,349 

Gearing stroke/360° mm 62,83 125,66 

Temperature resistance °C -30 bis +100 -30 bis +100 

Efficiency 1 0,8 0,8 




PG 14 Polygonal PG 20 Polygonal 





Chapter 4 


i 

i 


Bearing forces in the technical specification are based on the max. acceleration value a (m/s²). If 

you alter the rate of acceleration, then the bearing force alters too. 

Note Less acceleration (a= m/s²) > greater bearing force 

Higher acceleration (a= m/s²) > less bearing force. 

In the layout of the system, consider the function of the Schlüter modules as primary unit, because 

even here the total loading on any one lifter must not be exceeded 

FMA - calculation 

FL - Static loading [N] FZ - Static loading on rack [N] 

mL - Weight of lifting load [kg] mZ - Weight of rack [kg] 

a - Acceleration of drive [m/s²] > servo-motor, pneumatic cylinder 

Formula 1 

Lifting load - vertical FV = FL + FZ + [(mL + mZ) x a] + 20 N x 1,08 = [N] 

Lifting load - horizontal FH = [(mL + mZ) x a] + 20 N x 1,08 = [N] 


In arranging the layout, the technical scope of the accessories in terms of application is to be taken 

into account. All components which transmit forces for drawing or pushing or transmit moments of 

torque can be found in the following table. The data given correspond to the maximum values and 

must not be exceeded. They relate to the tabulated values of chapter 4, sections 4.1.1 

Schlüter ® SL Unit SL 050 SL 150 

Profile shaft Nm 25 110 

Straightness mm/m 0,3 0,3 

Torsional movement °/m 1 1 

Rack buckling length mm 0,04 0,1 

Profile shaft backlash mm 0,100 0,085 

Differential-coupling 

No./ force vectors Stück 7 9 

Coupling unit 

Pushing/pulling force F N 18.000 24.000 

Please Note: The wear on the slide bearing is 0.01mm/km at a torque of 0 Nm and with no 

additional radial forces bearing on the rack gear! 





Chapter 4 


i 

4.1.4 Lateral load capacity - rack drives 

The Schlüter ® SL rack gears are mounted in sliding bearings. Bearing wear is 0.01mm/km at a 

torque of 0 Nm and with no additional radial forces acting on the rack gear: 

max. slide bearing wear SL 050 ≤ 0.5 mm SL 150 ≤ 1.0 mm 

The moments of the rack gear guides (x, y and z) are shown in the table below. 


M tx = dyn. Nm 0 0 

M tx = stat. Nm 0 0 

M ty = dyn. Nm 45 100 

M ty = stat. Nm 500 1000 

M tz = dyn. Nm 20 35 

M tz = stat. Nm 200 400 

Please Note: Should you need to calculate the bending distance of the rack ends, please contact 

our technical sales office. 



Chapter 4 


i 



A mm 75 110 

B mm 75 110 

C mm 50 70 

D mm 56,5 87,5 

E mm 36 50 

F mm 60 90 

G mm 60 90 

H mm 37,5 55 

I mm 31,5 55 

Dowel hole J mm Ø 6 x 10 6 x 10 

K mm Ø 7 9 

L mm Ø 26 K 6 47 K 6 

M mm 2 2 

N mm M10 x 1 M10 x 1 

Part-no. Standard SL 050 SL 150 


Hinweis: Tolerance band precision / interference holes ± 0,03 

Front side threaded 


accessible! 



Chapter 4 


Type Schlüter-Lifter ® SL 

i 

i 


The rack is used as a pull or push action rack and, at the same time, convents linear motion into 

rotary (angular) motion. It is also possible to effect the action in reserve. 

Threads are provided at the ends, which are for attaching accessories, i.e. a differential couplings, a 

coupling unit (for pneumatic cylinder) or a heavy duty coupling, for effecting an interface for pulling or 

pushing actions. In addition. The threads are used for accepting attachments, e.g. devices, which 

can be directly mounted. 

The rack is supplied in lengths in accordance with your requirement. Please state the length, 

defined by the number or teeth. Refer to chapter 3, sections 3.2.2, Equation 2 and 3. 


A mmØ 20 30 

B mm M8 M10 

C mm 20 20 

to mm 3,1416 7,8540 

Part-no. Rack ZA 050 /.. ZA 150 /.. 

weight kg/m 2,3 5,1 

Note for ordering: Always add the number of teeth to the item reference no. by Z = 

Example: Rack for Schlüter ® SL 050, length 162,85 mm > ZA 050, Z = 52. 



Chapter 4 


Type Schlüter-Lifter ® SL 

4.2.2 Rack Covers 

It is necessary to fit rack covers if operating in a dirty environment. This will ensure that guide blocks 

and casings are protected against high rates of wear. When installed vertically, the spiral covers are 

fitted with the end with the largest diameter at the top; if installed horizontally, the end with the 

largest diameter is fitted in the direction in which the swarf is ejected. The way in which the individual 

spiral windings overlap ensures that they are self-cleaning. 

These Schlüter ® SL rack component covers are manufactured for each customer individually. 

Please contact us at an early stage so that we can determine your requirements. 

i 

i 

Installation: 

Secure the Schlüter ® SL, push the rack inside and 

position it. Place the rack cover while still closed over the 

rack and on to the base flange, with the narrow end 

down. Place the retaining flange on to the rack and 

secure it against the matching component opposite. 

Set the shortest length of rack travel possible. Check that 

the rack cover is properly seated on the base flange. 

Release the rack cover as described in the installation 

guide. The rack cover will spring open and will 

automatically take up the correct position inside the 

retaining flange. 

Please Note: These spiral rack covers are delivered compressed and 

pre-tensioned. It is extremely dangerous to release the wire or 

steel tape tension retainers in a careless, negligent manner. Do 

not release the tension retainers until the rack cover is under 

compression. This is the only way to ensure that the spiral cover will 

not shoot upwards, posing a considerable risk to life and limb! 

Please Note: If the spiral rack covers are installed vertically with the 

largest end uppermost then under normal conditions they are selfcleaning 

and maintenance free. However if they are no longer 

operating smoothly, we recommend that they be lubricated with a 

special spray oil. 






Chapter 5 


Types 

lifgo ® 



System Components

Chapter 5 


Types lifgo ® 3.9 – 4.7, lifgo ® linear 4.1 – 4.3 and Schlüter-Lifter ® SL 

i 

i 

5.1.1 Profile shaft specification 

The profiled shaft produce the torsionally rigid frictional interface for all rotational connections. At the 

same time they synchronise the tooth position of the pinion shafts and prevent any possible 

chance of error occurring during assembly. Consequently, the profiled shafts differ in the three lifgo 

models. Profiled shafts are supplied in lengths to suit the customer’s requirements. Please add the 

length „L“ (mm) to the item number. 

A A A A A 

VK 6 PG 14 PG 20 KW 42 SW 46 

lifgo ® , lifgo ® linear Unit 3.9 4.0 4.1 4.3 4.5 4.7 

Schlüter-Lifter ® Unit --- SL 050 SL 150 --- --- --- 

A mm 6 14 20 42 52 --- 

Part-no. 18-39-10 18-40-10 18-41-10 18-43-10 18-45-10 n.Projekt 

weight kg/m 0,3 1,1 1,8 9,4 14,2 --- 

Example: Profile shaft for lifgo 4.1, profile length 250 mm > 18-41-10, L = 250 

5.1.2 Locking collar specification 

The locking collars secure the profiled shafts in axial direction. Please note that the locking collar 

must be fitted to both sides of each profiled piece to prevent the profiled shaft from working its way 

out of position! 

To prevent penetration of sprayed water, the centre must be pressed slightly in the direction towards 

the lifgo unit and be sealed with a ring of grease. 

B 

C 

A - Profil 


Site of installation to: 

lifgo housing 

Bearer block 



B mm 30 30 40 70 110 --- 

C mm 15 20 21 21 25 --- 

Part-no. 18-39-20 18-40-20 18-41-20 18-43-20 18-45-20 Acc. Project 

weight kg 0,1 0,1 0,3 1,5 2,5 --- 



L

Chapter 5 



i 

5.1.3 Torsionally rigid tube 

In order to maintain synchronisation when working with large distances between axes, it is necessary 

to increase the strength of the shaft by means of a tubular reinforcement. 



L mm Acc. Project Acc. Project Acc. Project Acc. Project Acc. Project Acc. Project 

D mm 20 30 45 115 --- --- 


Profiled shaft „A“ chapter 5, sections 5.1.1 

Part-no. 18-39-11 18-40-11 18-41-11 18-43-11 --- --- 

Please Note: Including fastening materials. Alternatively, cardan shafts can be used where the 

distances (L) are large. 


Chapter 5 



i 

5.1.4 Differential coupling 

The differential coupling is an adjustable unit which is fitted between the racks. The required setting 

is attained by lengthening or shortening the coupling. The setting can be fine adjusted within a band 

of 1/100 mm and is set after installation. In doing this secure the eyebolt/trunnion unit by means of 

the lock nuts. With this closed together, rotate the second unit. The lifgo system is installed and 

secured in position on the drive end by means of the drive itself (cylinder or motor), this means that 

in altering the length of the differential coupling, the rack can only effectively move in its direction of 

operation. 

Rotation to the right > differential coupling shorter > rack retracts 

Rotation to the left > differential coupling lengthens > rack extends 

The change in length X DK of lifgo differential-couplings is 0,5mm/360° angle of rotation. This enables 

accurate co-ordination or position to be effected, Since all couplings are supplied with one infinitely 

variable setting zone (L DK), basic models are offered which cover a length of X i min. to X i max., in 

each case. Please ensure that the screwed-in depths of the threads are as uniform as possible! 

In addition to the setting function, the coupling enables compensation to be accomplished too. 

Angular deviations of α 5° in the X- and Y- axes are permitted. Height and lateral displacement can 

be compensated for or taken into account. Please use the coupling only as drawbar rod. For 

using as forcing lever is it necessary to calculate the critical load on a column for design of profile 

dimension of cross section. Refer to chapter 5, sections 5.1.5, equation 6. 

The opening „D“ for accommodating the couplings are given with its diameter in (ØD) in the 

technical specification. This diameter, which is as small as possible, should be heeded without 

exception. 

eye type bearing fork head 

L max. 



L min. 

+ - 

free effective direction 

a 

a 

unit drill 

fix by a looknut 

+ left longer 

- right shorter 

D 

D

Chapter 5 



5.1.5 Differential coupling specification 

Specification: 

A - Axle center between middle / middle lifgo Rotation axis Xi - length of rack 

Equation 6 L = A - Xi = adjusted length 

Setting zone per differential coupling > LDK = mm max – mm min 

Angular deviation of the Y- / Y-axis to straight line max. > α 

Change in length (mm) of the coupling for 360°rotation > XDK 

Openings through wall for the coupling in mm > ∅D 

lifgo ® Unit 3.9 4.0 4.1 4.3 4.5 4.7 

LDK mm 16 80 80 90 110 --- 

α X-/Y- Grad 4 5 5 5 5 --- 

XDK mm/360° 0,5 0,75 0,50 0,50 0,50 --- 

D mm 20 42 42 60 80 --- 

Setting zone 

Part-No. 

Setting zone 

Part-No. 

Setting zone 

Part-No. 

Setting zone 

Part-No. 

Setting zone 

Part-No. 

Setting zone 

Part-No. 

Setting zone 

Part-No. 

Setting zone 

Part-No. 

Setting zone 

Part-No. 

Setting zone 

Part-No. 

Special type 

Part-No. 

mm 

min./max. 

mm 

min./max 

mm 

min./max 

mm 

min./max 

mm 

min./max 

mm 

min./max 

mm 

min./max 

mm 

min./max 

mm 

min./max 

mm 

min./max 

mm 

min./max 

See below 

the note 

See below 

the note 

See below 

the note 

See below 

the note 

See below 

the note 

See below 

the note 

See below 

the note 

See below 

the note 

See below 

the note 

See below 

the note 

On inquiry 

13-39-00 

228-308 

13-40-10 

308-388 

13-40-11 

388-468 

13-40-12 

468-548 

13-40-13 

548-628 

13-40-14 

628-708 

13-40-15 

708-788 

13-40-16 

788-868 

13-40-17 

868-948 

13-40-18 

948-1028 

13-40-19 

On inquiry 

13-40-00 


228-308 

13-41-10 

308-388 

13-41-11 

388-468 

13-41-12 

468-548 

13-41-13 

548-628 

13-41-14 

628-708 

13-41-15 

708-788 

13-41-16 

788-868 

13-41-17 

868-948 

13-41-18 

948-1028 

13-41-19 

On inquiry 

13-41-00 

280-370 

13-43-10 

370-460 

13-43-11 

460-550 

13-43-12 

550-640 

13-43-13 

640-730 

13-43-14 

730-820 

13-43-15 

820-910 

13-43-16 

910-1000 

13-43-17 

1000-1090 

13-43-18 

1090-1180 

13-43-19 

On inquiry 

13-43-00 

500-610 

13-45-10 

610-720 

13-45-11 

720-830 

13-45-12 

830-940 

13-45-13 

940-1050 

13-45-14 

1050-1160 

13-45-15 

1160-1270 

13-45-16 

1270-1380 

13-45-17 

1380-1490 

13-45-18 

1490-1600 

13-45-19 

On inquiry 

13-45-00 

weight kg 1-2 1-2 1-4 4-12 15-28 

--- 

--- 

Note for order: By quoting dimension „L“ after the item number, the differential coupling is supplied 

in a present state. For lifgo 3.9 the dimension note is necessary. 


--- 

--- 

--- 

--- 

--- 

--- 

--- 

--- 

--- 

---

Chapter 5 



i 

i 

5.1.6 Universal shaft joint specification 

Universal shaft joints are used for angular interface transmission or torque. If lifgo units are installed 

which deviate from a common axis, then two versions of universal shaft joints are available to suit 

each profile form and model: 

lifgo 3.9, 4.0 and 4.1 Universal shaft joint - single 

lifgo 3.9, 4.0 and 4.1 Universal shaft joint - double 

If the mounting surfaces being uneven (e.g. unmachined plate, etc.), it is likely that the profiled shaft 

cannot be pushed by the pinion shafts without inducing stress. In order not to overload the bearings 

by stress force, it is recommended to use two single- type universal shaft joints. The joints are to be 

fixed by the use of locking screws. 

The maximum angle of deflection „ß“ for each joints is 45 ° in X-/ Y- axis, the assembly notices 

chapter 5, sections 5.1.7 and the insertion depth of the profile being dimension „B“. Refer to chapter 

5, sections 5.1.1. 

- single - - double - 



A mm 48 108 108 --- --- --- 

A1 mm 74 156 156 --- --- --- 

B mm 13 30 30 --- --- --- 

C mm 20 40 40 --- --- --- 

D mm 24 54 54 --- --- --ß 

Grad 45 45 45 --- --- --- 

Part-no. 18-39-31 18-40-31 18-41-31 --- --- --- 

Universal shaft 

Joint - single 






Part-no. 18-39-32 18-40-32 18-41-32 --- --- --- 


Joint - double 





weight kg 0,5 / 1,0 0,8 / 1,1 0,7 / 1,0 --- --- --- 



Chapter 5 



i 

5.1.7 Assembly Notices, Cardan Joint 

Cardan joints and cardan shafts are components for transmitting rotary motion and handle the 

transfer of torque from one drive to another. 

Two shafts are connected to one another at a fixed angle with a single cardan joint. If the driving 

shaft has a constant rotary speed then the driven shaft's rotary motion will be irregular. This 

irregularity – also known as gimbal error – is caused by rotary angle advance and retard motion of 

the driven shaft with respect to nominal rotary motion. These rotary fluctuations are similar to a sine 

wave. This irregularity increases with increased angle α difference between the two shafts, i.e.: 

A single cardan joint should only be used in applications where such rotational irregularity is 

tolerable. This irregularity can be compensated by employing a pair of single cardan joints 

successively or by using a pre-fabricated double cardan joint. When assembled correctly, the 

irregularity caused by the first shaft joint will be cancelled by the second, providing that the following 

requirements are observed (as specified by DIN 808): 

1. Observe correct journal cross orientation when using two single shaft joints; both inside yokes 

should be in a single plane. 

Correct 

same yoke plane 

2. The deflection angle must be the same at both ends. 

Correct 

angle α and β are identical 

α α 

β 


False 

yoke planes at 90° offset 

False 

angle α and β are 

different 

Please Note: If the driving shaft and the driven shaft are allowed to move laterally, only parallel 

motion may be permitted. 

Shaft bearings for jointed shafts – or double jointed shafts – should be located as 

close as possible to the shafts' joints. 


β

Chapter 5 



i 

5.1.8 Cardan shaft specification 

Cardan shafts are used for the rotary, positive transmission of torque. If lifgo lifters are fitted so that 

they do not lie in one axis, the following types are available: 

lifgo 4.3, 4.5 and 4.7 dual jointed cardan shaft 



i 

Please observe the maximum angle of 

deviation “ß” per joint in the X / Y axis. 

The depth of insertion of the profile is the 

dimension “A1”- 5mm. 

See chapter 5, sections 5.1.1 for the form 

of the profiled shaft 

lifgo ® , lifgo ® linear Unit 4.3 4.3 4.5 4.5 4.7 

A mm Acc. Project Acc. Project Acc. Project Acc. Project Acc. Project 

A1 mm 62 62 62 62 --- 

B mm --- --- --- --- --- 

C mm 100 100 120 120 --- 

D mm 42 46 46 60 --- 

Break angle ß Grad 18 35 18 35 --- 

Part-no. 18-43-32 18-43-33 18-45-32 18-45-33 18-47-32 

Cardan shaft 

double 

Cardan shaft 

double 

Cardan shaft 

double 

Cardan shaft 

double 

Cardan shaft 

double 

weight kg Acc. Project Acc. Project Acc. Project Acc. Project Acc. Project 

Please Note: Including fastening materials.

Chapter 5 


Line of lifgo ® 3.9 – 4.7 

i 

5.1.9 Fixing brackets drilling pattern 

If it is impossible to bolt the lifgo units directly on to the mounting surface, one can use fixing 

brackets instead. There are two versions available (depending on the model) 

Single type - for fixing of one unit 

Double type - for fixing of two units next to each other. 

Fixing brackets supplied in pairs as an assembly unit, including screws. 

lifgo ® Unit 3.9 4.0 4.1 4.3 4.5 4.7 

A mm 38 50 45 79 120 --- 

B mm 20 20 20 40 60 --- 

C mm 15,5 13 13,5 30 40 --- 

D mm 30 40 40 60 70 --- 

E mm 4 4 4 5 20 --- 

F mm 5,5 ∅7 ∅9 ∅11 ∅17,5 --- 

G mm 47 63 70 120 170 --- 

H mm 94 126 140 240 340 --- 

I mm 9 13 25 41 50 --- 

Part-no. single 17-39-10 17-40-10 17-41-10 17-43-10 17-45-10 On inquiry 

Part-no. double 17-39-20 17-40-20 17-41-20 17-43-20 17-45-20 On inquiry 

weight kg 0,2 / 0,4 0,2 / 0,4 02 ,/ 0,4 0,4 / 0,8 2,0 / 4,0 --- 

Please Note: The drilling patterns for the fixing brackets and plates are identical. The mounting 

dimensions are given at chapter 3, sections 3.1.5 



Chapter 5 



i 

i 

5.1.10 Mounting plates drilling pattern 

It is recommended to use mounting plates if the bearing plate or similar is not of sufficient strength or 

rigidity. Furthermore, any variance in heights can be matched and compensated. In using lifgo drive 

blocks, mounting plates must be used. If a lifgo unit is to be used as a pivotal unit, mounting plates 

provide the necessary height for the unit to be able to rotate clear of the centre axis The lifgo unit is 

initially bolted to the mounting plate, then as a combined assembly, positioned and installed. The 

position of the lifters can be determined as required. Two versions (depending on the model) are 

available): 

Single-type - for fixing of one unit. 

Double-type - for fixing of two units next to each other. 

Hinweis: Mounting plate supplied as an assembly unit including screws. 

lifgo ® Unit 3.9 4.0 4.1 4.3 4.5 4.7 

A mm 47 63 70 120 170 --- 

B mm 38 50 45 79 120 --- 

C mm 94 126 140 240 340 --- 

D mm 9 13 25 41 50 --- 

E mm 100 118 154 225 335 --- 

F mm 88 104 134 200 300 --- 

G mm 18 -- 26 48 66,7 --- 

H 

In the ground 

mm 18 -- 28 48 65 --- 

4/8 x manufact. I mm M5 M6 M8 M10 M16 --- 

J mm 5 -- 15 26,5 40,5 --- 

K mm Ø5,5 Ø7 Ø9 Ø11 Ø17,5 --- 

L mm -- Ø38 -- -- -- --- 

M mm -- 21 -- -- -- --t 

mm 7 8 12 15 20 --- 

Part-no. single 16-39-10 16-40-10 16-41-10 16-43-10 16-45-10 On inquiry 

Part-no. double 16-39-20 16-40-20 16-41-20 16-43-20 16-45-20 On inquiry 

weight kg 0,4 / 0,8 0,5 / 1,0 0,9 / 1,8 2,3 / 5,5 9,0 / 18,0 --- 



Chapter 5 



i 

i 

i 

i 

5.1.11 Lubrication plate 

The lubrication plate allows access to the lubrication point of the lifgo ® when a fully enclosed rack 

cover is fitted. The sole purpose of this plate is to turn the lubrication point through 90°, placing it 

externally where it is accessible. The plate is fitted between the lifgo and rack cover. 

Without this plate, access to the guide block lubrication point is 

impossible where bellows have been fitted on both sides. If bellows 

have been fitted to one side and the other side is inaccessible, then 

this procedure should also be used. 

Please Note: Please take the installation space for the lubrication 

plate (Bs) into account when calculating the length 

of the rack (chapter 3, sections 3.2.2). 

lifgo ® Lubrication plate 

Unit 3.9 4.0 4.1 4.3 4.5 4.7 

A mm 47 63 70 120 --- --- 

B mm 12 12 12 12 --- --- 

C mm --- 24 28 48 --- --- 

D mm 43 44 50 80 --- --- 

Part-no. semy --- 12-40-30 12-41-30 12-43-30 On inquiry On inquiry 

Part-no. fully 12-39-31 12-40-31 12-41-31 12-43-31 On inquiry On inquiry 


5.1.12 Front-lubricator 

Lubrication units can be helpful for the function of lubrication. Therefore we have different types for 

selection. 

A B 

E 

H 

Please Note: Half-cover bellows only can be used due to the mounted continuous lubricator 

lifgo ® Lubricating 

3.9 4.0 4.1 4.3 4.5 4.7 

A Length 31,8 43,0 47,0 84,0 124,2 --- 

B Breadth 11,5 12,5 13,0 17,0 19,0 --- 

E Hole spacing 24,55 32,4 38,3 70,0 76/100 --- 

H High 19,2 24,8 29,3 49,8 75,8 --- 

Öl (cm³) 1,0 2,2 2,6 9,6 30,0 --- 

Part-no. 10-39-11 10-40-11 10-41-11 10-43-11 10-45-11 On inquiry 

Advantages for mounting and running: 

- up to 10.000 km lifting distance - only first lubrication at the guide block - very small lubrication loss 

- reduction of oil consumption - working temperature max. 60°C - no lubrication pipes 



Chapter 5 


Line of lifgo ® 3.9 – 4.7, lifgo ® linear 4.1 – 4.3 and Schlüter-Lifter ® SL 

5.1.14 Self-lubricator 

i 

The grease dispenser set can be installed anywhere and 

ensures continuous lubrication of the lifgo housing and the 

guide trolley. For one filling of grease, an emptying interval of 

either 1-3-6-9 or 12 months can be set using a switch. 

The set consists of: 1x grease dispenser 125ml (lifgo housing) 

and 1x grease dispenser 60ml (guide trolley), 2 x brackets, 2 x 

supports, screw fixtures and 2 x 1m hose. 

The lubricant container can be refilled and reused. Operational 

time depends upon the set quantity to be dispensed. For more 

information on maintenance, please see chapter 8, section 

8.1.4. 

An additional lubricating plate is included with the sets for the 

lifgo 3.9, 4.0, 4.1 and lifgo 4.3 linear model sizes, please see 

chapter 5, section 5.1.12. This plate is absolutely necessary as 

these particular model sizes only have a cone nipple on the 

guide trolley. The installation space for the lubricating plate 

must therefore be taken into account. 

lifgo ® , lifgo ® linear 3.9 4.0 4.1 4.3 4.5 4.7 

Schlüter-Lifter ® SL --- SL 050 SL 150 --- --- --- 

Self-lubricator 

Filling amount cm² 60/125 60/125 60/125 60/125 60/125 --- 

Part-No. 10-39-20 10-40-20 10-41-20 10-43-20 10-45-20 On Inquiry 




Chapter 6 

Line of lifgo 4.0 

Tool Making 


Chapter 6 


Line of lifgo ® 4.0 

6.1.1 Areas of Application 

For many years now, the lifgo ® 4.0 has been employed by European automotive manufacturers to 

remove workpieces from the presses. The lifgo ® 4.0 is very fast and is able to move heavy loads; in 

addition to this, it requires very little installation space. Important in this context is the key feature 

which ensures that synchronisation is maintained, even when the load is unbalanced. The extremely 

high quality of the lifgo lifter ensures a long service life. 

Due to their modular design, the lifgo ® 4.0 system components can be configured to fit any location. 

A pneumatic cylinder is usually chosen as the drive component, connected via a coupling unit. 

Areas of application in the press section: 

External bodywork components, bonnets/hoods, boot lids/tailgates, side pieces, roof and floor 

assemblies. 

All large components which need to be lifted out synchronously. 

There are further applications in cutting and bordering, both in the small and large press areas. 



Chapter 6 


Line of lifgo ® 4.0 

6.1.2 Rack gear according to company standards – automobile industry 

lifgo ® Unit 3.9 4.0 4.1 4.3 4.5 4.7 

A mm -- 8,50 -- -- -- -- 

B mm -- M8 -- -- -- -- 

C mm -- 25 -- -- -- -- 

D mm -- 12,05 -- -- -- -- 

E mm -- 20 -- -- -- -- 

F mm -- 40 -- -- -- -- 

G mm -- 40 -- -- -- -- 

H mm -- Ø25 -- -- -- -- 

I mm -- Ø32 -- -- -- -- 

J mm -- 35 -- -- -- -- 

m mm -- 1,00 -- -- -- -- 

Sw mm -- 21 -- -- -- -- 

to mm -- 3,14 -- -- -- -- 

Part-No. Rack -- 12-40-01 -- -- -- -- 

weight kg/m -- 2,10 -- -- -- -- 

6.1.3 Fixing plate according to WDX standard Ford, Europe - dimensioned drawing 

lifgo ® Unit 4.0 

A mm 63 

B mm 50 

C mm 126 

D mm 13 

E mm 118 

F mm 104 

4/8 x place in I mm M6 

K mm Ø7 

L mm Ø38 

M mm 21 

t mm 8 

Part-No. single 16-40-10 

Part-No. double 16-40-20 

weight kg 0,5 / 1,0 






Chapter 7 


Types 

lifgo ® 



Drive Units 

Accessories

Chapter 7 



7.1.1 Drive units 

The possibilities of use and layout variants of lifgo drive units are numerous. 

Drive and positioning units, Stepper motor, Control motor (master function), (Controllers with suitable 

interface, bus system) 

In order to establish a standard range, we wish to initially analyse a cross section of customer 

requirements as to be able to develop a pertinent and user friendly programme. Therefore, we 

supply motor drives (a servo-gear-motor, a servo drive block and a three-phase geared motor) to suit 

the application requirement. 

Please provide us with all relevant data in addition to the item number, such as: 

Total lifting load Stroke speed Number of lifgo units duty cycle 

Stroke time Number of cycles per min. Acceleration max. ambience condition 

Sketch or drawing Positioning accuracy Control type, etc. problem definition 

7.1.2 Drive units - three phase gear-motor DGM SR/SC 

The layout of the three - phase geared motor is designed to suit the task to be performed, as a spur 

gear (SR) or worm gear drive (SC). The adapters for the profiled shafts (for each model) are premachined 

and positioned during manufacture, and can be adapted to requirements. (chapter 7, 

sections 7.2.3). 

7.1.3 Servomotor 

Servomotor selection is made on the basis of operating criteria given for the application. 



Chapter 7 



7.1.4 Pneumatic cylinder LZY 

Pneumatic cylinders are available in standard piston diameters. The coupling unit matched to suit the 

connection thread of the piston rod. Specification-cylinder anodised aluminium, double acting with 

dampers at both ends and non-contact limit switches/position feedback. Two standard versions are 

available: 

Pneumatic cylinder with single piston TYPE 1 3 

Pneumatic cylinder with double-acting piston TYPE 2 3 

International standards: DIN ISO 6431, VDMA 24 562, NFE 49003, UNI U 52030860 

1-one side piston rod Typ 1 3 

Part-No. PistonØ Thread Stroke Code 1 Accessories Code 2 

23-40-02 25 M10 x 1,25 25 01 Limit switches Qty. 2 with 5m cable SG 

23-40-03 32 M10 x 1,25 50 02 Flange mount FL 

23-40-04 40 M12 x 1,25 80 03 Foot mount narrow FS 

23-41-05 50 M16 x 1,5 100 04 Foot mount wide FB 

23-41-06 63 M16 x 1,5 125 05 Trunnion/pivot ,mount narrow SB 

23-41-08 80 M20 x 1,5 160 06 Mounting block 90° with pivot bearing LB 

23-43-10 100 M20 x 1,5 200 07 

23-43-12 125 M27 x 2 250 08 

23-43-16 160 M36 x 2 320 09 

23-45-20 200 M36 x 2 400 10 

23-45-25 250 M42 x 2 500 11 

Please indicate the part number with 

code number 1 for standard stroke ,accessories 

code 2 and above type number 3 


Example: 

2-double acting piston Typ2 3 

A pneumatic cylinder with 

double acting piston, 

piston diameter 100 mm, 

stroke 80 mm with limit switches 

and narrow foot mount = 

Part-No.: 23-43-10-03-SGFS Type 2 


Chapter 7 



7.2.1 Gearbox adapter, Coupling and Planet-Gearbox 

Gear box Adapters and couplings for any type of gear motor or geared servomotor can be selected 

or designed by our technical department. 

7.2.2 Bearer block for SGM / ATB units 

Bearer blocks are used, for example, as support units if the drive is used separately and is not 

coupled directly to the lifgo unit. SGM drives and ATB drives may also be direct-flange mounted. Our 

bearer blocks are matched to suit the respective model of the lifgo unit, and are fitted with 

maintenance-free bearers. Application: Refer, chapter 2, sections 2.1.6. 

B 



E 

A 

D 

L - for screw DIN 912 

2 x thread I 

dowel hole G 

lifgo ® Unit 3.9 4.0 4.1 4.3 4.5 4.7 

A mm --- --- 100 170 --- --- 

B mm --- --- 75 115 --- --- 

C mm --- --- 26 50 --- --- 

D mm --- --- 53,5 87,5 --- --- 

E mm --- --- 41 79 --- --- 

G mm --- --- 6 6 --- --- 

H mm --- --- 10 10 --- --- 

I mm --- --- M10 M16 --- --- 

J mm --- --- 15 24 --- --- 

L∅ mm --- --- 11 17 --- --- 

Part-No. 15-39-00* 15-40-00 * 15-41-00 15-43-00 15-45-00 * On inquiry 

weight kg 0,4 0,5 1,2 2,4 3,5 --- 

Note: *Bearer block 15-39-00; 15-40-00; 15-45-00 manufacture according to project 

J 

C 

H

Chapter 7 



7.2.3 Shafts adapters 

The profile-shaft-adapter is the rigid coupling connection between the profile shaft lifgo 3.9 - 4.3 and 

the drive shaft/slip-on shaft of the gearmotor. There are numerous variants, the users must therefore 

define: Diameter ØD = mm and Length L = mm , of shaft/slip on shaft keyway to DIN 6885, T1. 

Chapter 5, sections 5.1.1 

Shaft adapter consisting of 

profile shaft adapter and motor 

shaft adapter. 

Model for hollow shaft. 

Shaft adapter consisting of 

profile shaft adapter and motor 

shaft adapter. 

Model for solid shaft. 



A mm 34 42 54 90 --- --- 

B mm 30 28 40 80 --- --- 

C mm 6 8 9 16 --- --- 

E mm 4,5 5,3 5,3 10,5 --- --- 

D + L mm Acc. Project Acc. Project Acc. Project Acc. Project --- --- 

Part-No. Shaft-adapter 19-39-01 19-40-01 19-41-01 19-43-01 On inquiry On inquiry 

Part-No. Profil-shaft-ad.. 19-39-11 19-40-11 19-41-11 19-43-11 On inquiry On inquiry 

weight kg Acc. Project Acc. Project Acc. Project Acc. Project Acc. Project Acc. Project 

Note: Including fastening materials 


Profile shaft adapter 

for connection to 

profile shaft. 


Chapter 7 



7.2.4 Sliding Naves 

The sliding nave forms a frictional connection between the lifgo ® lifter and a sleeve shafted geared 

motor with shrink disc. It is compact and easy to fit, thus saving space and reducing the effort 

required to install it. 

The sliding sleeve is an unfinished blank which can be machined to the necessary diameter by either 

the customer or by Leantechnik AG for a small additional charge.. 


Profiled shaft „A“, chapter 5, sections 5.1.1 


Schlüter-Lifter ® Unit 3.9 4.0 4.1 4.3 4.5 4.7 

A mm -- 35h9 45h9 70h9 -- -- 

B mm -- 28 40 72 -- -- 

Part-No. Sliding Naves Acc. Project 19-40-17 19-41-17 19-43-17 Acc. Project -- 

weight kg Acc. Project 0,2 0,4 1,6 Acc. Project -- 


Chapter 7 



i 

7.2.5 Coupling unit specification 

Coupling units are used to connect a pneumatic or hydraulic cylinder. They from the connection to 

the rack and transmit pulling and pushing forces. A unit comprises two parts - the coupling nut (KM) 

and the coupling sleeve (KH). The coupling nut can be supplied in a variety of threads (depending on 

the model). This is screwed onto the piston rod of the actuating cylinder. The pre-assembled cylinder 

unit is then inserted into the coupling sleeve. 

The Coupling unit is supplied as an assembly unit, including screws 

lifgo ® , lifgo ® linear Unit 3.9 4.0 4.1 4.3 4.5 

Schlüter-Lifter ® Unit --- SL 050 SL 150 --- --- 

thread 

Part-No. 

thread 

Part-No. 

thread 

Part-No. 

thread 

Part-No. 

A mm 40 50 50 63 75 

L mm 40 45 45 79 79 

SW mm 22 30 30 36 46 

M thread M6 M8 M10 M16 M20 

M 6 

13-39-01 

M 8 

13-39-02 

M 10x1,25 

13-39-03 

M 12x1,25 

13-39-04 


M 10x1,25 

13-40-01 

M 12x1,25 

13-40-02 

M 16x1,5 

13-40-03 

M 20x1,5 

13-40-04 

M 10x1,25 

13-41-01 

M 12x1,25 

13-41-02 

M 16x1,5 

13-41-03 

M 20x1,5 

13-41-04 

M 20x1,5 

13-43-01 

M 22x1,5 

13-43-02 

M 27x2,0 

13-43-03 

M 30x1,5 

13-43-04 


M 30x1,5 

13-45-01 

M 36x2,0 

13-45-02 

M 38x2,0 

13-45-03 

M 42x2,0 

13-45-04 

weight kg 0,4 0,5 0,5 1,5 3,0 

Please Note: Including fastening materials. Special threads can be supplied upon request!

Chapter 7 



i 

7.2.6 Gearbox Adapter for lifgo ® 

A gearbox or motor can be mounted direct to the lifgo drive housing. For lifgo size 3.9 - 4.1 additional 

tapped holes can be provided. For lifgo sizes 4.3 - 4.7, the existing tapped holes are used. 

Dimensions of the centering flange and tapped hole positions are shown below. 

lifgo ® Unit 3.9 4.0 4.1 4.3 4.5 4.7 

TK-Ø mm 25,5 50,5 72,0 --- --- --- 

A mm --- --- --- 115 205 --- 

B mm --- --- --- 58 100 --- 

C mm --- --- --- 105 175 --- 

D mm --- --- --- 5,4 12,5 --- 

M mm M4 M5 M6 M10 M16 --- 

T mm 10 13 15 40 50 --- 

ß1 Grad 28° 12° 13° --- --- --- 

ß2 Grad 28° 35° 13° --- --- --- 

ØN x P 19K6x3 26K6x1,5 47K6x1 58H7x2 100H7x2 --- 

Part-No. *10-09-39 *10-09-40 *10-09-41 Standard Standard On inquiry 

Please Note: * Please include this information with your order. 



Chapter 7 



i 

7.2.7 Gearbox Adapter for Schlüter-Lifter ® 

A gearbox or motor can be mounted direct to the lifgo drive housing. For Schlüter size SL 050 – SL 

150 additional tapped holes can be provided. Dimensions of the centering flange and tapped hole 

positions are shown below 

Schlüter-Lifter ® Unit 050 150 --- --- 

ØP mm 40 70 --- --- 

R mm M5x8 M6x10 --- --- 

ØSxT mm 26K6x2,3 47K6x2 --- --- 

Part-No. *10-09-050 *10-09-150 --- --- 

Please Note: * Please include this information with your order. 






Chapter 8 


types 

lifgo ® 



Assembly, Commissioning

Chapter 8 



8.1.1 Assembly instructions 

Safety device of telescopic 

type ball bearing traveller 

(lying inside) 

Only to be removed shortly 

before the installation of the 

racks! 

1. Position the lifgo units as required using correctly dimensioned bolts to the lifgo ® fixing brackets/ 

mounting plate. Do not use excessive force! Use the supplied fixing pins. 

2. Profile shafts, where appropriate with the universal shaft- cardan joint, are to be installed as per 

drawing (rotation connection). Each single profile shaft needs two axial locking set-collars against 

detaching. The lifgo – units are automatically synchronised with each other by the profile shaft. Push 

the set collars against the lifgo – case and fix the locking screws. The profile shafts are now 

mounted without end play! Connect all lifters with rotatory connection in this manner. 

3. Remove the plastic safety device in the rack guide bearing. 

4. Insert the racks into the lifters - which are connected by one profile shaft -. Push in the racks up to 

the pinion shaft so that the first cog of the rack can engage into the pinion shaft. By turning at the 

profile shaft, retract the racks and bring them into their final position. All racks (horizontal and/or 

vertical) must retract simultaneously. Mount all racks in this manner. Rack where used can now 

be assembled, press the Velcro closer firmly. 

5. The connection between drive (air cylinder or geared motor) is made with coupling unit or geared 

adapter. Adjust position of the first lifgo – unit, next to the drive (all lifgos, connected by the profile 

shaft, are simultaneously adjusted.) Adjust all racks, by turning at the profile shaft, to the same 

height as the first rack. 

6. Differential Coupling (DC) to be mounted/adjusted as follows: Take the dimension “Xi” between the 

racks. Adjust the differential coupling (nuts/eye bolt and screwing depth/steering head) respectively. 

Lengths of thread, at eye bolts and steering heads, should be evenly distributed. Detach the eye 

bolts by spreading the clip bolts out of the DC and screw into the racks using the adjusted nut. Mount 

the middle part of the DC (thread piece with clevis heads) with clip bolts between the eye bolts. 

Secure the clip bolts by pressing on the steering head. Fix using a locknut the nuts of the one DChalf 

(eye bolt 1/steering head 1). Adjust the height level of the vertical rack between the first and the 

second lifgo – axis with the second DC-half by twisting (eye bolt 2/steering head 2). The jumper 

cable should not be detached. 

Direction of rotation – right > Differential coupling shorter > Rack sinks in 

Direction of rotation – left > Differential coupling longer > Rack extends 

Change of lengths 0.5 mm/360°. Do not go under the minimum screw-in depths. If the setting range 

of the first half is not sufficient, fix the nuts by a locknut and use the second half for the further 

adjustment. After that, fix all nuts with a locknut. Mount and adjust all further DC units in the same 

manner. 

7. Check the light running of the facility and pull all screws tight. 

8. Install the mounting platform on the vertical racks if ordered and fix them with the supplied screws. 

Finally, check again the light running. The assembly is completed. Take the facility as per mounting 

instructions (see chapter 8, sections 8.1.3) into operation. Drawings & notices > Manual page: 

chapter 2, sections 2.2.2.1, chapter 5, sections 5.1.4, 5.1.6 and chapter 7, sections 7.2.5. 


Push the profile shaft into 

the sleeve shaft and lock it 

with the set collar in axial 

way! 


Chapter 8 



8.1.2 3.9, 4.0, 4.1 Insertion of rack 

Lifgo units are shipped with a plastic transport safety insert to prevent bearing Damage in transit. 

Invert the drive unit as shown and carefully insert the Rack – pushing out the safety insert. 

Care should be take to ensure that the inner seals are not damaged on insertion of the rack. Ball 

bearings from the linear bearing should not fall out. The transport insert will be pushed out on 

assembly and Should not be removed before-hand. 

Important note: If several lifgo drives are to by synchronized, the slip-on profile drive shaft in all 

cases should be in the same position before inserting the rack! 



Chapter 8 



i 

i 

i 

i 

8.1.3 Commissioning 

Prior to commissioning the lifgo units must first be filled at two points and the Schlüter-Lifter ® SL at 

one points with a first fill of grease. 

Lubrication: 

casing 

Dirt and contamination can affect guide rails, especially those which are exposed. In order to ensure 

that seals and covers continue to function as intended, dirt and contamination needs to be cleaned 

away on a regular basis. 

Before putting into operation, please ensure that a sufficient basic level of lubrication is applied. 

Please observe manufacturers instructions regarding unsuitability and incompatibility. 

We recommend a lubricant which complies with DIN 51825. 

- Grease – K2K for normal loads 

- Grease – KP2K for high loads 

Greases which contain solid ingredients (such as graphite or MoS2) are not to be used! 

All lifters have been lightly lubricated at the factory. This is sufficient for a test run of 10 lifts. Before 

commissioning or an extended test run, initial lubrication needs to be carried out. This should be 

done with a total of three times the amounts in the table below: 

1. Lubricate the guide carriage with the first amount given in table 1. 

2. Move the guide carriage/lifgo or the rack gear/guide rail back and forth for three double travels 

for a least three times the length of the carriage. 

3. Repeat the steps given in 1. and 2. two more times. 

4. Check that a film of lubrication is visible on the guide rail/ rack gear. 


Linear rack guide cm³ 0,4 (x3) 0,7 (x3) 1,4 (x3) 4,7 (x3) 15,4 (x3) 65 

Casing cm³ 4 5 12 56 240 980 

Pleas Note: Carry out trials up to 100 strokes without any loading, then carry out service lubrication. 


Casing cm³ --- 5 12 --- --- --- 

Please Note: Carry out trials up to 100 strokes without any loading, then carry out service lubrication. 


Lubrication: 

Rack guide 


Chapter 8 



i 

Our instructions are based upon the usual servo-driven equipment which is operated for periods 

interrupted by waiting times and which is supplied by continuous lubrication. 

The values for daily and monthly lubrication cannot be accurately calculated and are simply 

recommendations which underline the importance of good lubrication. 

A tried and tested solution providing continuous lubrication is provided by the use of lubrication 

boxes or the fitting of a central lubrication unit. 

We recommend shortened lubrication intervals if environmental effects such as contamination, the 

use of cooling lubricants, vibration, peak operation etc. are present. If the loads on the system are 

small, longer lubrication intervals can be scheduled. 

Please see the following table for maintenance lubrication quantities and intervals. 

lifgo ® 

Unit 3.9 4.0 4.1 4.3 4.5 4.7 

Casing 

cm³/km 0,040 0,054 0,0625 0,1223 0,1712 --- 

Self lubricator 125cm³ km 3.125 2.315 2.000 1.022 730 --- 

lifgo ® 

Linear rack guide 

Unit 3.9 4.0 4.1 4.3 4.5 4.7 

cm³/km 0,0004 0,0007 0,0014 0,0188 0,1540 --- 

Self lubricator 60cm³ km 150.000 85.714 42.857 3.191 389 --- 


Casing 

Unit --- SL 050 SL 150 --- --- --cm³/km 

--- 0,054 0,0625 --- --- --- 

Self lubricator 125cm³ km > 2.315 2.000 --- --- --- 

8.1.5 Maintenance Notice 

Due to the numerous unknown external factors in the field, it is impossible to give clear 

recommendations on lubrication quantities and intervals. Maintenance staff should therefore 

observe the state of lubrication closely, especially at the beginning, and react appropriately. 

A film of lubricant should be visible on the rack gear or guide rail but no large quantities 

should ooze from the lifter or the guide carriage. For this reason, the quantity of lubrication 

should be increased or reduced according to empirical experience. 

This advice also applies if lubricators are fitted or if a central lubrication unit is installed. 



Chapter 8 


Line of lifgo ® 3.9 – 4.7 and lifgo ® linear 4.1 – 4.3 

i 

8.1.6 VEAS Assembly 

Incorrect 

Correct 

Remove the bearing 

guide's shipping 

restraint by inserting 

the rack (push out)! 

Profile shaft into the hollow 

shaft and secure it axially 

with locking ring! 

1. lifgo ® -VEAS can only be used in one position for vertical lift. This position is as shown above. 

Position the lifgo ® -VEAS according to specification and bolt it into place with a mounting 

bracket/plate. Tighten bolts gently! Use the supplied alignment pins. Refer to chapter 8, 

sections 8.1.1 for all other steps on the subject of "lifgo Assembly Notices". 

2. The mechanical safety lock in the lifgo ® -VEAS should be tested once a week to ensure that its 

bolt operates freely. Otherwise there is a danger that hardened lubricating grease at the bolt's 

normal position may prevent the bolt from proper operation. 

3. The lifgo ® -VEAS is delivered in a locked condition. In order to remove this, the voltage specified 

below must be placed across the magnet! 

4. Pneumatic- connection voltage: 24 V direct current 0,83 Ampere 

inductive switch (IS) Set at factory! 

2 x PNP Closer (make contect) 24 V DC 



system is in motion, then the lifgo® and the VEAS is to be immediately replaced. The VEAS locks the 

system in one direction only (the direction against the load). The other direction is not blocked 







Kapitel 9 


Types 

lifgo ® 3.9 – 4.7 

Modular construction of a lifting system 

an assembly example

Chapter 9 

9.1 Assembly Information 

Line of lifgo 3.9 – 4.7 


Illustration No.1 

Installation instructions for a lifgo lifting system based upon the lifgo lifters 3.9 – 4.1, configured as a 

four point system driven by a pneumatic cylinder. 

Illustration No. 2 

These components are required: 



Chapter 9 





The first profile shaft, going all the way 

along, is pushed through the first lifgo. 

Now push on two collars, as a mirror 

image, with their installation sides towards 

the lifgo housing. After this, push the 

profile shaft on through the lifgos opposite. 

The lifgos are now interlocked and 

torsionally connected to one another. 

The first short profile shaft (when a cardan 

joint is used) is also fixed using a collar. 

In order to protect against the penetration of splashes of water, when centring the collars they need 

to be lightly pressed on and installed with a ring of grease. The cutting ring screws in the collar can 

now be tightened and will then prevent the profile shaft from moving out. 


Now push the middle profile shaft into the 

cardan joint which is already fitted, secure 

it and then push the second cardan joint 

onto the other end. Please make 

absolutely sure that the threads on the 

cardan joints are fitted in one line (for more 

information, please see chapter 8, section 

8.1.7 of the handbook). Now hold a collar 

between the cardan joint and the lifgo 

housing. Finally, push the last short profile 

shaft through the lifter and the collar from 

the outside (installation side / lifgo housing) 

into the cardan joint. 

Press the collar lightly on after applying a ring of grease and screw it tight. Also secure the profile 

shaft in the cardan joint by screwing it tight. 



If supplied, fit all of the lifgos without 

rack gears to their base plates. Please 

be sure to observe the installation 

position of the lifters (rotation / direct of 

travel). Please use the pins and screws 

supplied. Then install all of the lifgos in 

their final positions according to the 

drawing. Do not yet tighten the 

securing screws. 


Push the first cardan joint onto the 

profile shaft. Observe the depth of 

penetration of the profile shaft into the 

guide of 30 mm. Tighten the fixing 

screw on the cardan joint to secure the 

profile shaft. 


Chapter 9 





By applying light pressure to the 

horizontal rack gear and at the same time 

lightly turning the profile shaft in an 

anticlockwise direction, the first tooth of 

both the vertical and horizontal rack 

gears will slip into the pinion shaft. Both 

of the vertical lifters are now 

synchronised with the horizontal lifters. 

The same procedure is now applied to 

the other (mirror image) side. 


Remove the eye bolts from the 

differential coupling (remove pins) and 

screw them into the rack gears. 



Before the rack gears are inserted, the 

four sides of the profile shaft need to be 

turned so that they are parallel to the 

lifgo housing. Now the horizontal rack 

gears are inserted in the direction of the 

drive (cylinder) until they touch the first 

tooth of the pinion. While doing this hold 

the profile shaft firmly to prevent it 

turning. The transport lock which will 

have been pushed about half way out 

can now be pulled out and removed. 

Now insert the vertical rack gears in the same manner, by pushing them into the top of the lifgo 

housing. 


Before the differential coupling can be 

fitted the distance between the 

horizontal rack gears needs to be 

determined. Both horizontal rack gears 

need to be the same distance from the 

housing in one direction. Once you 

have determined the distance, then set 

the differential coupling appropriately 

(please see chapter 5 section 5.1.6 of 

the handbook). 


Chapter 9 





Once everything as been assembled, adjust 

the rear part of the system to the height of 

the front part. Ensure that both horizontal 

rack gears are the same distance to the 

housing in one direction. Fit locknuts to all of 

the screws and check that everything is tight 

and secure! 



Place the middle part of the differential 

coupling between the eye bolts using the 

pins. 


Now fit the coupling unit. First screw the 

coupling sleeve to the end surface of the 

first rack gear. The coupling nut is screwed 

onto the air cylinder.. 


Now fit the air cylinder with the coupling nut. 

Adjust the total overall height of the lifgo 

system by turning the coupling nut on the 

piston rod of the cylinder. After the adjustment 

has been carried out, lock all of the screws. 

The system is now completely assembled! 

Important- Please Note 

In order to allow the vertical rack gears to be 

easily replaced, the horizontal rack gears 

should be half the length of the housing plus one tooth longer than the vertical rack gears. This will 

ensure that the synchronisation of the system is maintained and that it will not need to be 

completely stripped down. 





Chapter 10 


Types 

lifgo ® 



Incidentals

Chapter 10 


Line of lifgo ® 3.9 – 4.7 and lifgo ® linear 4.3 

10.1.1 Coupling nut 

SW 

A 

C D E 

B 

lifgo ® Part-No. Typ KH A B C D E thread, G SW 


G 

431.1020.000 KM01 KH01 47 37 14 19 7 M 10x1,25 36 

431.1020.010 KM02 KH01 47 37 14 19 7 M 12 36 

431.1020.020 KM03 KH01 47 37 14 19 7 M 12x1,25 36 

431.1020.030 KM04 KH01 47 37 14 19 7 M 12x1,5 36 

431.1020.040 KM05 KH01 47 37 14 19 7 M 15x1 36 

431.1020.050 KM06 KH01 47 37 14 19 7 M 16 36 

431.1020.060 KM07 KH01 47 37 14 19 7 M 16x1,5 36 

431.1020.070 KM08 KH05 47 37 14 19 7 M 18 36 

431.1020.080 KM09 KH05 47 37 14 19 7 M 18x1,5 36 

431.1020.090 KM10 KH05 47 37 14 19 7 M 20 36 

431.1020.100 KM11 KH05 47 37 14 19 7 M 20x1 36 

431.1020.110 KM12 KH05 47 37 14 19 7 M 20x1,5 36 

431.1020.120 KM13 KH05 47 37 14 19 7 M 22x1,5 36 

431.1020.130 KM14 KH05 47 37 14 19 7 M 24 36 

431.1020.140 KM15 KH05 47 37 14 19 7 M 24x1,5 36 

431.1020.150 KM16 KH05 47 37 14 19 7 M 24x2 36 

431.1020.160 KM17 KH05 47 37 14 19 7 M 26x1,5 36 

431.1020.170 KM18 KH05 47 37 14 19 7 M 27x2 36 

431.1020.180 KM19 KH06 57 47 19 24 14 M 30 47 

431.1020.190 KM20 KH06 57 47 19 24 14 M 30x1,5 47 

431.1020.200 KM21 KH06 57 47 19 24 14 M 36 47 


Chapter 10 



10.1.2 Coupling plates 

lifgo ® Part-No. A B C D E F G H I J K 

KP 01 323.1702.050 100 32 55 50 40 17 35 75 19,5 30 12,5 

KP 02 323.1703.060 120 40 65 60 50 20 45 88 23,5 33 16,0 

lifgo ® Part-No. A B C D E F G H I J K 

KP 03 313.9999.050 80 30 55 50 40 15 40 56 20 10 15 

KP 04 313.9999.060 110 40 60 60 50 20 45 70 24 16 18 



Chapter 10 



10.1.3 Formular collecting 

Ascertaining the bearing force Chapter 3, sections 3.1.2 

Formular 1 

Lifting load -vertical FV = FL + FZ + [(mL + mZ) x a] + 20 N x 1,08 = [N] 

Lifting load -horizontal FH = [(mL + mZ) x a] + 20 N x 1,08 = [N] 

Gear tooth rack Calculation of lengt Chapter 3, sections 3.2.2 

Formular 2 

Zt = (GL + Herf + LZS + B + BS + TS+ K1) : t0 = > round up to a whole number = Z[qty. off] 

Formular 3 

Xi = (Z x t0) - K2 = mm 

Gear tooth rack cover Calculation of lengt Chapter 5, sections 5.1.5 

Formular 4 

Ft = Herf : b = > round up to whole number = F[qty. off] 

Formular 5 

LZS = F x a + C1 + C2 = mm 

or 

LZS = F x a + C1 + C1 = mm 

Setting length - Differential coupling Chapter 5, sections 5.1.7 

Formular 6 

L = A - Xi = adjusted length 



Chapter 10 



i 

10.1.4 Data transfer 

lifgo ® 3.9 – 4.5, lifgo ® linear 4.1 – 4.3 and Schlüter ® SL 

3D Data IGES 

STEP AP 214 

SAT 6.0 

3D Data ISO 8859-1 Volumen.model 

CATIA V4 

ISO 8859-1 Solid.exp 

Pleas Note: If the data cannot be read, then please state their format. 

2D data available on request 






Chapter 11 


Terms

Chapter 11 

11.1 Terms and Conditions of Sale and Delivery 

1. General Validity 

The following terms and conditions are deemed to be the basis of all transactions, excluding any other terms 

and conditions and agreements which have not been expressly approved by us in writing, even if the 

following wording is not especially repeated at the conclusion of each and any further transaction. In any 

case, we only recognise terms and conditions of the purchaser or of the orderer insofar as these are not 

different from our terms and conditions. This applies as well, if the former contain contradicting provisions. 

Should certain provision turn out to be legally ineffective, this shall not affect the legal validity of the other 

provisions. We herewith expressly object to divergent terms and conditions. 

2. Quotations and Quotation Documents 

Preliminary estimates of costs and quotations shall be binding for a period of 90 calendar days. The 

documents belonging to the quotations such as illustrations, drawings, specifications of weights and 

measurements shall be deemed to be only approximate, unless they are expressly designated as binding. 

Regarding preliminary estimates of costs, drawings and other documents, the provider retains property and 

intellectual property rights. Orders shall be only deemed to be accepted, when they have been confirmed by 

us in writing. Until then our offer shall be regarded as not binding. Collateral agreements, additions, or 

amendments by phone, by telegraph, or by word of mouth are only valid, if confirmed by us in writing. 

Regarding any prices, which are not expressly designated as binding in our quotations and preliminary 

estimates of costs, we reserve the right to reasonable price adjustments, should cost factors (materials, 

personnel expense, energy and general duties and taxes, tariffs, transport costs, etc.) significantly increase 

after the conclusion of the contract and before delivery. In the event of follow-up orders, we are not 

committed to adhere to former prices. 

The minimum invoice value shall be 100.00 Euro. Amounts of less than 100.00 Euro may be paid cash in 

case without deduction, if the goods are collected. Increased deliveries or short shipments of 10 percent 

shall be deemed to be agreed. 

3. Prices 

The prices are ex works exclusive of packaging, plus current value added tax. 

4. Delivery Time 

Times of delivery shall always be provisional, even this is not especially mentioned. Each partial delivery 

shall be regarded as an independent order. Delivery periods regularly start upon full agreement in writing 

about the terms and conditions of the order including the availability of the data, drawings, samples in the 

quantities required and in their final version, etc. that have to be provided by the purchaser or the orderer 

free of cost and free at factory gate. 

The time of delivery shall be deemed to be observed by the timely notification of the readiness for delivery, if 

shipment is impossible without us being at fault. If we are in default in delivery, the purchaser or orderer shall 

have to grant us a reasonable respite. 

The purchaser or orderer shall not have the right to reject to part shipments. Damages for non-performance 

or late performance shall be excluded. 

5. Inability to Deliver 

Operating troubles of any kind, events of force majeure, walkouts, lockouts, etc. at our works or those of our 

suppliers as well as any other occasions and events, which prevent supply, production and shipping, release 

us from the compliance with delivery commitments and entitle us, should the exact circumstances require, to 

partly or totally waive our delivery obligations. In these cases, the purchaser/orderer is not entitled to cancel 

the order. 

6. Shipment 

Shipping shall be ex works and for the account and at the risk of the purchaser or orderer. Upon delivery to 

the forwarder or carrier, and upon leaving the factory latest, the risk, including the risk of seizure attachment, 



shall pass to the purchaser or orderer. Unless otherwise instructed, we shall choose transport routes and 

means of transport to the best of our knowledge without undertaking any liability for the cheapest and fastest 

transport. If merchandise, which is notified to be ready for delivery, is not immediately called, or if transport is 

permanently or temporarily impossible for us, the purchase price shall be nevertheless due. In this case, we 

are entitled to store the merchandise at the purchaser’s expense and risk at our own discretion. The 

supplier’s liability for adverse weather effects on the merchandise ordered during transport or storage is 

excluded. 

7. Packaging 

In the absence of other explicit agreements accepted by us in writing, we shall choose the packaging to the 

best of our judgement. Packaging material shall be charged at cost price and shall not be taken back. The 

purchaser or orderer shall be responsible for insurance against breakage, transport damages, and loss by 

fire. 

8. Warranty Claims 

Variations in weight, measurements and quality shall be admissible according to the standard rules of the 

German Official Standards Committee (DIN). Complaints shall have to be notified to us in writing without 

undue delay, in case of apparent defects within 8 days after receipt of the merchandise, indicating all 

necessary details such as article, invoice and delivery note numbers, and the nature of the disorder. 

Regarding possibly existing defects, the purchaser shall have, in the first instance, a calim for subsequent 

performance. If subsequent performance fails, the purchaser may claim diminution oft he purchase price or, 

at his discretion, cancel the contract. Further compensation claims are excluded, e.g. the liability for damage 

caused by the delivery item to the ordering party’s goods (damage occurred to other goods), consequential 

damages, loss of earnings, etc.. 

This limitation of damage claims shall not apply in case of gross neglect of the seller’s duties or an intentional 

breach of duty or gross neglect of duty by a legal representative or person employed in performing 

obligations for whom the seller is vicariously liable. 

This limitation shall not apply either to a liability for personal injuries resulting from the seller’s neglect of 

duty or an intentional breach of duty or gross neglect of duty by a legal representative or person employed in 

performing obligations for whom the seller is vicariously liable. 

The period of limitation for warranty claims, irrespective of their legal grounds, as well as for damage claims, 

is 1 year. 

Warranty claims and rights shall not apply to only minor defects and not to normal tear and wear, either, 

particularly not to sealings and other wearing parts. They shall be also excluded, as far as they result from 

inappropriate treatment or handling, or unsuitable working materials, insufficient maintenance or service, 

inappropriate installations or interventions by the purchaser/orderer or by third parties. 

If a complaint about defects turns out to be unfounded, the purchaser/orderer shall compensate us for all 

expenses caused to us by the complaint. 

The above-mentioned provisions apply mutatis mutandis, if other delivery items are supplied instead of those 

contractually agreed, provided that the agreement on the amendment or variation is acceptable for the 

purchaser/orderer considering our interests. 

9. Substitute Delivery 

Substitute delivery be made or a credit note granted after proper ascertainment of the obligation to render 

compensation through detailed examination in our factory. For his purpose, the merchandise found fault with 

shall have to be sent free of cost for us. In case of urgent need, a replacement shall be delivered and its 

current price charged. When the warranty obligation has been established, a credit entry shall be made. In 

case of commission orders, we only guarantee proper processing of their parts. There shall be no further 

damage claims, e.g. compensation for materials. We refer to the statutory non-commitment clause 

(“Unverbindlichkeitsklausel”) of the German Federal Cartel Office. If the purchaser or orderer or third parties 

carry out alterations or repairs without our prior consent, our liability shall be cancelled. Further claims of the 

purchaser or orderer, in particular claims for other damage than that occurred to the delivered item, do not 

exist. 

10. Acceptance Inspection 



If a functional examination is statutory or contractually agreed regarding the products to be supplied, it shall 

have to be carried out in our factory immediately after the notfication of readiness for shipment at the 

purchaser’s or orderer’s expense. If he fails to carry out the examination, the products shall be deemed to be 

accepted as conforming with terms and conditions, once the shipment leaves our factory. 

11. Terms of Payment 

If no other terms of payment are fixed in our quotation, payment shall have to be made within 30 days after 

the date of invoice without deduction. We take in bills of exchange eligible for discount only in virtue of 

explicit agreement pending full discharge of the debt. Credit entries on the basis of bills of exchange or 

cheques shall always be subject to receipt and irrespective of earlier maturity of the purchase price in case of 

the purchaser’s/orderer’s default, the value date being the day, when we are able to dispose of the 

equivalent sum. If the purchaser/orderer fails to pay within the time allowed for payment, interest is charged 

at a rate of 8 percent above the basic interest rate. If the terms of payment are not complied with or if facts 

come to our knowledge after the respective agreement that are susceptible change the 

purchaser’s/orderer’s credit standing, all our claims shall be immediately due irrespective of the terms of bills 

taken in, if any. In this case, we shall be furthermore entitled to carry out outstanding shipments only after 

advance payment or provision of security and, after a reasonable final date, to cancel the contract or to claim 

damage due to non-performance, irrespective of the right to recover possession, at the purchaser’s/oderer’s 

expense, of the merchandise delivered under reservation of title. The purchaser/orderer shall only have a 

right of retention and a right to set-off, if this is based on undisputed or non-appealable claims. 

12. Reservation of Title 

1. We reserve proprietory rights regarding merchandise delivered or processed by us as security für all our 

claims – including conditional and fixed-term claims – from the overall business relations, until the 

merchandise is fully paid. The buyer or orderer, however, shall have the right to dispose of the 

merchandise in the regular course of business 

2. The reservation of proprietory rights extends to the products resulting from processing, commixtion, or 

adjunction of our merchandise at their full value and we shall be deemed to be the producer. If 

proprietory rights of third persons are retained in case of processing, commixtion, or adjunction with third 

parties’ merchandise, we shall acquire co-ownership in the ratio of the invoice values of the merchandise 

processed. 

3. The buyer assigns us already now, totally or in the ratio of our co-ownership share, the claims against 

third parties arising from the sale as security. He is authorised to collect the debt for our account, unless 

revocation or cessation of payments. The buyer or orderer is not authorised to assign these claims, not 

even for the purpose of factoring, unless the factor undertakes at the same time to have the quid pro quo 

paid to us immediately in the ratio of our co-ownership share, as long as we have claims against the 

buyer or orderer. 

4. The buyer or orderer shall inform us without undue delay and by registered letter about seizures of 

merchandise or claims belonging to us by third parties. 

5. The exercise of the retained proprietory rights shall not mean the cancellation of the contract. 

6. The merchandise or the claims that replace them may not be mortgaged, pledged as security or 

assigned to third parties unless our claim is fully discharged. 

7. If the value of the securities exceeds our claims by more than 20 percent, we shall, at the buyer’s or 

orderer’s request, release securities of our choice as far as that goes. 

13. Place of Performance and Place of Arbitration 

Place of performance and place of arbitration for deliveries and payments, claims arising out of cheques or 

bills of exchange and any other rights and obligations resulting from the transaction shall be, for both parties, 

our company domicile in Oberhausen. 

14. Data Storage 

When we enter into the business relationship, we store data according to the provisions of the Federal Data 

Protection Act. 

LEANTECHNIK AG · 46047 Oberhausen, Januar 2004 



Chapter 11 

11.2 Notes 

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