3000 Standalone - KB-Prüftechnik

KB Prüftechnik 

LCR 

Load Cell Range 

Rockwell 

Brinell 

Vickers 

Testing machines at it‘s finest 

KB 150R, KB 250– 1000 KB 3000 

Standalone 

Knoop 

Depth Measurement 

Universal 

Hardness Tester 

KB 150R 

KB 250 



KB 3000


Advantages of the Standalone machine 

KB 150R/ 250/ 750/ 1000/ 3000 

Standalone 

The Standalone System from KB Prüftechnik is the 

easiest and secuerest way to your test results. 

Huge test load range 

KB 150 R 0,5kg– 250kgf 

KB 250 0,5kg– 250kgf 

KB 250 + XL Last 0,2kg– 187,5kgf 

KB 250 + XL Last 0,3kg– 250kgf 

KB 750 1kg– 750kgf 

KB 1000 3kg– 1000kgf 

KB 3000 5kg– 3000kgf 

Intuitive and easy handling 

Intuitive handling via digital potentiometer 

Short training time on the machine: The simple menu navigation 

allows starter to test after a short training time. 

LED illumination 

The optical evaluation works with LED illumination. LED illumination 

is cost saving since it has got a high duration of 

life (greater than 10 years). 

The use of the LED illumination allows automatic light control.

KB optical zoom 


Optical magnification 

KB hardness testers work with optical zoom (10 steps, 1:7 magnification). 

The zoom enlarges optically, not digitally. This allows a high picture quality 

even in big enlargements. 

Time and cost saving 

The KB optical zoom reduces costs since it can replace 

up to 4 object lenses. Just one object lens is 

necessary. The object change partially falls out 

completely. 

Testing according to standards (DIN EN ISO, ASTM) 

The KB optical zoom allows testing acc. to standards of a huge test load 

range. The object lens change falls away. By the use of the KB optical zoom 

a picture confirming to standards is always guaranteed. 

Max 32 mm 

Min 10 mm 

New clamping cap 

The new KB clamping cap uses slideable holding– 

down devices. Therefore samples with minimum 

10mm up to maximum 32mm width can be measured. 

Objectives with ring light can be changed without 

removing the 

clamping cap. 

Maximum sample weight 

Big samples Small samples 

KB 150 KB 250 KB 750 KB 1000 KB 3000 

Manual spindle 100 kg 

250 kg 

Motor driven spindle 

(optional) 125 kg 200 kg


Our performance with the STANDALONE machine 

HB N/mm² 

HRC N/mm² 

HV N/mm² 

Automatic evaluation 

�� Optional automatic evaluation 

�� Evaluates Brinell, Vickers, Vickers with ring licht and Brinell with ring light automatically. 

Ring light 

�� By the use of the KB ring light even soft and dirty/ dark samples can be evaluated 

correctly. 

Conversion tables 

�� Conversion tables acc. to DIN EN ISO 18265 (without conversion to copper) are 

basically included 

Language selection 

�� Freely switchable language selection: 

German, French, Swedish, Czech, Italian, English, Spanish 

Rotary measuring marks for Brinell 

�� Sinuous indentations can be evaluated by understanding the circularity with 

three points which give the right value 

Video panel 

�� Easy handling via approved video panel with statistic overview 

�� Big LCD colour display 

�� Most exact application by the use of a digital poti 

Magnetic identer holder 

�� Tool– less indenter change 

�� No user influences 

�� No setting effects after change of indenter 

�� First Rockwell value after the change is useable 

�� Retrofit possible

KB 150 R/ 250/ 750/ 1000/ 3000 

Heavy- duty key pad panel 

suitable for rough 

enviroment. Much better 

than sensitive touchscreen 

panel. 

Easy change of the 

indenter with the 

magnetic indenter 

holder 

Throat depth 250mm 

ONE object lens and optical 

zoom with 10 steps of magnification 

(1:7 magnification) 

�� Further expensive objecties 

are not needed 

�� Big time saving, since 

the change of the objectives 

does not apply 

STANDALONE 

Evaluation via LCD Display 

and auto measurement 

(option) 

Test room height: 


Patented ringlight for 

dark field illumination 

Evaluation via digipot in 

pixel precission. Camera 

pixels and LCD pixels are 

identical 

Easiest handling via digipot 

KB 250/ 750/ 1000 : 320mm 

Optional : 560, 700, 800 mm 

KB 3000 : 350 mm 

Optional : 560, 700 mm


What is Load Cell Range? 

�� Load Cell Range ist the load application controlled by a load cell: 

Due to the closed loop system the KB 150R– 3000 line achieves a highly precise 

test load range from 0,2kgf to 3000kgf without load variation. 

�� Maximum accuracy: 

The KB hardness testers apply all loads in a closed loop system. Due to the prin 

ciple of load application by a load cell the KB 150R, KB 250– KB 3000 line 

achieves a high– precision load application in a range of 0,2kgf up to 3000kgf 

without load overflow or load undercut. 

�� Maintenance– free load application: 

This load application system always allows to apply the exact load, independent 

of friction influences, pollution or enviromental conditions. This causes an 

extensive cost reduction in the maintenance, since expensive, mechanical ad 

justments of springs and levers, which are required for the load application, do not 

apply. 

�� Flexible and high-precise load application time, according to standard : 

Due to the load application controlled by a load cell the requested load application 

times according to the demands of the standards is absolutely no problem. This 

can only be achieved by a real load control system (not possible with a simple 

load control). 

�� Advantages of the closed loop system compared to a dead weight system 

Maximum precision. In the closed loop load system, in contrast to a dead weight 

system, the testing load applied on the indenter will be constantly measured and 

controlled. This allows a huge selection of testing loads and testing methods! 

�� No overflow behaviour: 

The load overflow behaviour, which comes from the contact between indenter and 

sample surface completely stays away 

Load 

F0 

Load system with dead weight 

Load application in a closed loop system 

Time 

+ 1% 

+ 0,1% 

- 0,1% 

- 1% 

Systematical Comparison Load control on a KB 250 with test load 30kgf 

±1% permitted tolerance 

±0,1% permitted tolerance for 

callibrating hardness reference 

blocks

Attention: 

Data management 


The test values are exported via the serial interface of the hardness tester. Via the 

serial interface a printer, a computer or a Steinwald– box can be connected. 

Hardness tester 

Steinwald- 

Box 

Further 

measuring devices 

Overview optical meassuring zone 

Objective 

PC/ Net work 

If a printer is connected to the hardness tester via the parallel 

interface of the hardness tester, the test data are 

printed directly 

If a PC is connected to the hardness tester via the serial interface, 

the test data are send to the computer. There they 

can be processed, e. g. with Excel. 

0,44 Mp CCD 1/2“ Camera für KB 3000 Standalone 758x580 pixels 

Measuring zone 

Min. Max. Resolution 

625 HV 30 - 

2,5x (Standard) 298 μm 5400 μm 1,50 μm 

120 HB 10/ 3000 

421 HV 10 - 

4x 210 μm 3820 μm 1,05 μm 

252 HB 10/ 3000 

263 HV 1 - 

10x 84 μm 1520 μm 0,42 μm 

404 HB 5/ 750 

0,44 Mp CCD 1/2“ Kamera für KB 250– KB 1000 Standalone 758x580 pixels 

Objective 

The Steinwald– box allows a junction of further measuring 

devices. For example: The hardness can be consolidated 

with the dimensions of a digital measuring slide. These test 

data can be handed to a PC or a net work. 

Measuring zone 

Min. Max. Resolution 

824 HV 10 - 

4x (Standard) 150 μm 2750 μm 0,75 μm 

116 HB 5/ 750 

515 HV 1 - 

10x 60 μm 1149 μm 0,3 μm 

180 HB 2,5/ 187,5 

618 HV 0,3 - 

20x 30 μm 540 μm 0,15 μm 

190 HV 30 

If the dissolution is smaller than 0,2 μm, even diagonal diameter smaller 40 μm (z.B.: 700 HV 0,3) can be meassured.


Test load steps (controlled by one load cell) 

Hardness 

tester 

Hardness 

tester 

Vickers acc. to DIN EN ISO 6507 and ASTM E 384 

Load step 




KB 3000 

Brinell acc. to DIN EN ISO 9506 and ASTM E 10 

Load step 





Load step 

Hardness 

tester 





Our Performance with Video, SA and FA 

0,2 

1/1 1/2,5 1/5 1/10 1/30 

5/25 

Standard 

Including option XL Load 

0,3 0,5 1 2 3 5 10 20 30 50 100 120 

5/ 

62,5 

5/ 

125 

5/ 

250 

5/ 

750 

10/ 

100 

2,5/ 

6,25 

10/ 

125 

2,5/ 

15,625 

10/ 

250 

10/ 

500 

2,5/ 

31,25 

Extended load steps available on request 

10/ 

1000 

2,5/ 

62,5 

10/ 

1500 

2,5/ 

187,5 

10/ 

3000

Hardness 

tester 

Knoop acc. to DIN EN ISO 6505 

Load step 





0,2 

0,3 0,5 0,6 0,7 0,8 0,9 1 2 3 5 10 

Standard 

Including option XL Load 

Not acc. to standards 

Extended load steps available on request 

Rockwell acc. to DIN EN ISO 6508, ASTM D 785 and ASTM E 18 

Suitable on all Rockwell hardness testers: KB 150R, 250, 750, 1000, 3000 

HRA- HRB- HRC- HRD- HRE- HRF 

- HRG- HRH- HRK- HRL- HRM- 

HRP- HRR- HRS- HRV 

HR 15/ 30/ 45 W 

HR 15/ 30/ 45 N HR 15/ 30/ 45 X 

HR 15/ 30/ 45 T HR 15/ 30/ 45 Y 

Due to the use of a controlled load system for all load steps, accuracy 

and repeatability is achieved on a very high level. 

Load overflow behaviour as It appears by use of dead weight machines, 

does not exist. 


Ball indentation hardness acc. to DIN ISO 2039 T1 for plastics 

Suitable on all Rockwell– hardness testers: KB 150R, 250, 750, 1000, 3000



Standard 

Machine dimensions 


Art. Nr.: 

1228 

All dimensions in mm 


Art. Nr.: 

1630 


Art. Nr.: 

1394 


Standard 


Art. Nr.: 

1228 


Art. Nr.: 

1630 

KB250 

Art. Nr.: 1394 

A 1180 1180 1180 1180 1180 1180 1180 1180 

B 232 232 232 232 232 232 232 232 

C 

Test room height 

320* 560* 700 800* 320* 560* 700 800* 

D 250 250 250 250 250 250 250 250 

E 735 735 735 735 735 735 735 735 

G 362 362 362 362 362 362 362 362 

weight 

215 

kg 


Art. Nr.: 

1228 

230 

kg 


Art. Nr.: 

1630 


Art. Nr.: 

1394 

240 

kg 

245 

kg 


Standard 

215 

kg 


Art. Nr.: 

1228 

230 

kg 


Art. Nr.: 

1630 

240 

kg 


Standard 

245 

kg 


Art. Nr.: 

1254 

A 1180 1180 1180 1180 1180 1180 1180 1285 1285 

B 232 232 232 232 232 232 232 270 270 

C 

Test room height 

560* 700 800* 320* 560* 700 350* 700* 

D 250 250 250 250 250 250 250 250 250 

E 735 735 735 735 735 735 735 765 765 

G 362 362 362 362 362 362 362 334 334 

weight 


Standard 

320* 

225 

kg 

240 

kg 

250 

kg 

255 

kg 

*Test room height C without spindle protection, special size available on 

request 

280 

kg 

290 

kg 

305 

kg 

418 

kg 

443 

kg

KB motorized turret 

Motor driven spindle 

Options + Accessories 

Special test exercises require a multiplicity of accessories to adjust the hardness 

tester optimally. Flexibility is one of KB‘s strengths. We always find a solution for 

your testing problem. 

Test room height extension 

Heat exchanger 

�� 6 positions for e.g. 4 indenter and 2 objective lenses 

�� No indenter- / objective lens changes anymore, time saving 

�� Highest reproduceability since the tests take place under the same conditions 

Art. 1366: Turret for KB 250– KB 750 

Art. 1607: Turret for KB 3000 

�� Comfortable testing, even of heavy samples 

�� No manual hand wheel drive anymore 

Art. 1677: Motor driven spindle with turret for KB 250—KB 750 

Art. 1337: Motor driven spindle for KB 250– KB 750 

Art. 1074: Motor driven spindle for KB 3000 

Art. 1228: Test room height extension to 560mm for KB 250– 750 


Art. 1254: Test room height extension to 700mm for KB 3000 


�� For surrounding temperatures higher 30°C 

�� For dirrty surrounding 

�� Mounted on the back side of the hardness tester 

Art. 1396 

KB Prüftechnik


Indenters 

Supports 

Sitting operation 

X/Y– tables 

We do offer any type of indenter. Please contact our sales or service department for 

any help. 

Please talk to one of our employees about your special project. We would like to help 

you at your choice 

The sitting opseration of KB hardness testers disburdens the test procedure. This 

option is especially in laboratories a big help for the user. 

Render more precisely the test procedure by a KB X/Y– table 

Art. 1637: Manual X/Y– table for KB 250 with 50x50mm travel distance, 

max. load 250kgf, max. sample weight 40kgf 

Art. 1288: Manual X/Y– table for KB 250 with 25x25mm travel distance, 

max. load 250kgf, max. sample weight 40kgf

Ring light 

Laststufenerweiterung Load step extension XL XL Load 

Last 

Objectives 

KB Mammut– line 

�� Unique demonstration of the Brinell– and Vickers indentations 

Art. 1423: KB 250 extension to 0,2– 187,5 kgf 

Art. 1217: KB 250 extension to 0,3– 250kgf 

Special machines 


�� The indentation is represented bright and the sample surfaces is represented 

dark 

�� Allows high– precision meassuring of indentations with heavy bulgings and bad 

surfaces (up to 3-4 HB) 

�� Quick checking of the quality of the Vickers or Rockwell indenters 

Art. 1216: Ring light set for KB 250-750 

Art. 1276: Ring light set for KB 3000 

Art. 1022: 2,5x 

Art. 1027: 4x (Standard) 

Art. 10872: 10x 

Art. 10870: 20x 

Due to the KB optical zoom you can save up to 4 objectives 

The KB MAMMUT– Line allows, due to the frame construction 

and the modular applicable test head (methods Brinell and 

Vickers, Rockwell on request), hardness testing confirming to 

standards up to 3000kgf even on big and heavy samples. 

Dimensions: 

Hx Wx D: 3300x 1250x 3080 mm 

Weight incl. Test head and dice table: 7300 kg 

Dimensions dice table: 500x 800 mm 

Max. pivoting radius: 2500 mm 

Max. throat depth: 1400 mm 

Max. Test height: 1500 mm 

Min. Test height: 925 mm (without dice table) 

Min. test height: 420 mm (including dice table) 

Movement speed vertical: v= ca. 500 mm/ min

Special machines 

KB 3000BV– K 

�� KB 3000 test head 

�� Suited to your needs 

Shaft test device including turret, clamping 

cap and motor driven spindle 

Test load max. 250kgf 

Shaft dimension 

Diameter: 40– 120mm 

Length: 700– 2000mm 

Weight: approx. 170kg 

3-axes machine base with test head 

KB3000BVZ-K and big plate 

Technivcal data 


Test load: max. 3000kgf 

Stroke Z– axis: 700mm 

Stroke X– axis: 650mm 

Stroke Y– axis: approx. 200mm 

Sample weight: approx. 2000kg

Martens 


Instrumented indentation test 

Principle: During the load application and relieving the load and the displacement 

are meassured. 

Acc. to DIN EN ISO 14577 the following values can be determined. Pyramidal indenter 

( Vickers, Berkovich) are used. 

Short cut Unit Determination 

HM N/mm² �� Martens hardness 

�� Zero– point determination via 

linear extrapolation 

�� High sensitivity for effects on 

the surface of the sample and 

the support 

HMs N/mm² �� Martens hardness determined 

by the slope of the force/ displacement– 

curve 

�� Smaller sensitivity for effects 

of the surface of the sample 

HIT N/mm² �� Indentation resistance 

EIT N/mm² �� Indentation modulus 

dF/dh N/mm �� Contact stiffness 

�� Interim value for the EIT– calculation 

CIT % �� Indentation creep 

Welast mNm �� Elastic part of the indentaion 

work 

Wplast mNm �� Plastical part of the indentation 

work 

Wtotal mNm �� Indentation work 

Technical Data 

Max. Depth: 300μm 

Resolution better than: 0,01μm 

Qualified for displacements greater than: 6μm 

Probe tip 

Indenter 

Force/ Displacement Curve 

Software Martens hardness testing


KB 150R 

Developed especially for depth meassurement 

Performance 

�� Rockwell, all scales and Rockwell superficial, all scales 

�� Vickers depth measurement HVT 

�� Brinell depth measurement HBT 

�� Ball indentation hardness (for plastics) 

�� Big LCD– colour display 

�� Customizable basic setting 

�� Motor driven controlled load application 

�� 200 freely definable test methods 

�� Freely switchable language selection 

Standard accessories 

�� Interface RS 232 (bidirectional) and parallel 

�� Spindle protection 

�� Clamping cap 

�� Test table, plan with 80mm diameter 

�� Threaded spindle with hand wheel 

�� Aufbewahrungskoffer für Zubehör 

Test methods 

Acc. to standards: 

Rockwell DIN EN ISO 6508, ASTM D 785, ASTM E 18 

A– B– C– D– E– F– G– H– K– L– M– N– P– R– S– T– U– V– W– X– Y 

Ball indentation test (for plastics)- DIN EN ISO 2039 T1 

KB 150R - Jominy– Rockwell 

Art. No.: Software option (1355) for HardWin 

2 specimen: Sample holder (1776) + X/ Y– table 180x180 (1751) 

5 specimen: Sample holder (30616) + X/ Y– table 300x200 (1867)

KB Ringlight 


Dark field illumination for Brinell and Vickers 

Right indentation size 

Surface of the sample 

False indentation size 

Schematical cut through a Brinell indentation 

Calotte 

The KB ringlight became irreplaceable in Brinell 

hardness testing. By the use of the patented dark 

field illumination evan indentations on soft material 

will be evaluated correctly by presenting the indentation 

light and the surface of the sample 

dark. 

The actual indentation becomes visible by the use of the indirect illumination, not 

the reflection of the bank which was accumulated during the test (see picture below). 

Furthermore the dark field illumination allows testing on badly prapared 

surfaces. 

Art. 1216: Complete ringlicht for KB 250-750 

Art. 1276: Complete ringlicht for KB 3000 

Vickers Ringlicht– Auswertung 

Evaluation with incident light 

Evaluation with ringlight 

Die Erweiterung der Ringlichtauswertung 

bei Vickers ermöglicht nun auch Vickers- 

Auswertungen bei schwieriger Oberfläche. 

Riefen und dergleichen stellen auch 

bei der automatischen Auswertung keine 

Herausforderung dar. Durch die Dunkelfeldbeleuchtung 

wird die Prüfung unabhängig 

der Oberflächengüte ausgeführt.


KB Universal Hardness Tester KB 150 

R 

KB 

250 

BVRZ 

Test load 0,5– 250 kg �� 


BVZ 


BVRZ 

Test load 1– 750 kg �� 


BVZ 


BVRZ 

Article number 1047 846 1051 1066 1067 1316 1054 1048 

Test load 5– 3000 kg �� 

Brinell ISO 6506 �� 

HB depth measurement �� 

Vickers ISO 6507 �� 

HV depth measurement �� 

Rockwell ISO 6508 �� 

Rockwell ISO 6508 Superrockwell �� 

Ball indentation hardness ISO 2039 T1 �� 

Test desk Ø 80mm �� 

KB optical zoom �� 

Motor driven spindle X X X X X X 

X X 

Ringlight dark field illumination X X X X X X 

Object lens 2,5x for/ HV 30– HB 10/3000 �� 

Object lens 4x for HV 10– HB 5/750 �� X X 

Object lens 10x for HV1– 200 HB 2,5/ 187,5 X X X X X X 

Object lens 20x für HV 0,2– HV 30 X X X X X X 

Automatic evaluation X X X X X X 

Brinell Ball X X X X X X 

Vickers diamond X X X X X X 

Rockwell diamond X X X X X 

X 

Indenter for plastic samples DIN ISO T1 X X X X X 

X 

Load step extension XL X X 

Legend: 

X: Optional 

� : Inclusive 

Overview maschine– options 


RE 

3-1000kg 

�� 


BVZ


Notes


Your Representative 

KB Prüftechnik GmbH Tel: +49- 6231 – 93992-0 info@kbprueftechnik.de 

Im Weichlingsgarten 10 b Fax: +49- 6231 – 93992-69 www.kbprueftechnik.com 

67126 Hochdorf – Assenheim 

Germany

3000 Standalone - KB-Prüftechnik

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