BAUER CENTERSTAR with BDS 3.0

BAUER Centerstar

3,7 m
4,2 m
5,0 m
4,2 m
0,7 m
0,7 m
5,2 m
4,3 m
L
CENTERSTAR 5000 168EL / 203EL
0,7 m
3,1 m
L L
L
Rohrdurchmesser 168 / 203 mm
Pipe diameter
Diamètre du tube
0,7 m
Span
Span
Span
Länge
Length L m
Longueur
Überhang
Overhang
Porte-a`-faux
Länge
Length
Longueur
Sandfang
Sand trap
Dessableur
Sprühdüsenverlängerung
Spray nozzle extension
Rallonge de buse atomiseur
3,9 m
L L
Rohrdurchmesser 168 / 203 mm
Pipe diameter
Diamètre du tube
O m
S m
Nm
* Centerstar 203EL nicht verfügbar
Centerstar 203EL not available
Centerstar 203EL non disponible
0,7 m
*
59,8 54,0 48,1 42,3
59,80 53,95 48,10 42,25
O S N
23,4 17,6 11,7 5,9 0
24,1 18,3 12,4 6,6 0,7
0,15
CENTERSTAR 5000 168E / 203E
Span
Span
Span
Länge
Length L m
Longueur
Überhang
Overhang
Porte-a`-faux
Länge
Length
Longueur
Sandfang
Sand trap
Dessableur
Sprühdüsenverlängerung
Spray nozzle extension
Rallonge de buse atomiseur
*
Centerstar 203E nicht verfügbar
Centerstar 203E not available
Centerstar 203E non disponible
O m
S m
N m
36,4
36,40
0,15 0,15 0,15 0,15
1,2 1,2 1,2 1,2 1,2
3,0 3,0 3,0 3,0 3,0
*
59,8 54,0 48,1 42,3
0,7 m
59,80 53,95 48,10 42,25
O S N
23,4 17,6 11,7 5,9 0
24,1 18,3 12,4 6,6 0,7
0,15
36,4
36,40
0,15 0,15 0,15 0,15
1,2 1,2 1,2 1,2 1,2
3,0 3,0 3,0 3,0 3,0

Erforderlich
Nicht erforderlich
CENTERSTAR 5000
Zentralturmkupplung / Flexible tower coupling
Required
Not required
Spanlänge Abstand a
Span length Distance a
( m )
42,3
48,1
54,0
59,8
( m )
0,74
0,84
0,94
1,04
a
Abstand a
03.2003

TECHNICAL DESCRIPTION OF
CENTERSTAR 5000 203/168EL
1. PIVOT CENTRAL TOWER
Tower Structure:
- Sturdy, torsionfree tower construction consisting of 4 tower supports, braced with
steplike arranged cross-struts
- Hydraulically optimized design of pivot inlet and outlet, swivelling through 360°
- Sealing of pivot pipe with 1 lip seal and gasket
- Pivot rising pipe 194 x 2,5 mm of steel according to OE-NORM M 3124 ST12FZ with
welded-on bend 90° DIN 2605, 194 x 4,5 , for inlet and outlet
- Rising pipe with pressure gauge and connection facility for fertigation
- Inlet with flange DN 200/PN 10 (8")
- Cable entry on the bottom side of the rising pipe with packing of the conduit gland and
collector exit for power cable with 11 wires for full circle operation
Corrosion protection:
- Hot dip zinc coating according to DIN 50976 for all structural members
Profile dimensions:
- 4 tower legs: angle sections 100 x 100 x 5 mm
- braces: angle sections 45 x 45 x 5 mm
Coupling of tower:
30° articulation for application on uneven grounds
Foundation - to be provided locally:
Reinforced concrete slab with cast-in stone bolts for simple tightening of central tower
Size of foundation: minimum 3,10 x 3,10 m
Control panel: UNIVERSAL
Design and materials according to OEVE and VDE Standards (Austrian and German
electrical standards)
Built-in equipment according to IEC Standards and to VDE regulations.
../2

- 2 -
Control panel consisting of:
- Sheet steel casing with lockable front door
- Swivelling control panel to be opened only when not under voltage
- Water-tight steel casing (type of protection IP54) with corrosion resistant varnish
- Installed power current: 3 x 400 V/50Hz + PEN
source of current with earthed neutral
- Control voltage: 220 V single phase
- Control voltage transformer
- Commercial industrial contactors and disconnecting switch
- Cable connections equipped with cable bracket
Standard built-in equipment:
- Main switch for power supply with door latch
- Earth-leakage circuit breaker (e.l.c.b.)
- Working hour meter
- Voltmeter for measuring a phase voltage
- Percentage timer for setting the rotation speed
- Run / Stop switch for Pivot System
- Illuminated button for START FORWARD
- Illuminated button for START BACKWARD
- Switch for bridging the safety circle
- change-over switch “AUTO-REVERSE ON-OFF”
- Safety shut-down of system at malfunction
- signalling contat - PIVOT running
- Connection facility for electric shut-off valve
- 4-pole socket, 16 Amp
- Earthing: the central tower has to be connected to a suitable earth connection
Options:
- Automatic shut-down of system in a chosen position resp. parking position with
short-out switch
- Automatic reverse or automatic sector stop (change-over switch in standard
extent of supply)
- Low pressure shut-off with short-out switch
The control panel is completely wired by using different colours for the main circuit and
the control circuit.
Wiring diagram for each control desk.
Collector (slip rings for full circle operation)
External collector installed under an insolated shield. Main and control cables are led
through the collector. 11 spring-loaded sliding contacts, brush type.
../3

2. Spans
- 3 -
Bow string type truss with stabilizers
Span-length: 59,8m ; 54,0m; 48,1m and 42,3m for diam. 168
54,0m; 48,1m and 42,3m for diam. 203
Coating:
High performance hot dip zinc coating according to DIN 50976 for all steel components
including main pipes
Pipes:
Steel pipes according to OENORM M 3123 ST 37 FZ
Straight bead welded, with flanges
Dimension: 203mm x 2,5mm wallthickness
Dimension: 168 mm x 2,75 mm wall thickness
Length of the individual pipes:Mainpipes 5,85 m; Endpipes 0,55m
Flange thickness: 10 mm
Outlets:
Spaced every 2,925mm, 3/4" female thread
Power cable:
Jacketed 11-wires cable, oil- and UV-resistant
Cross-sections of conducting wire: 4 x 6 mm² copper
7 x 1,5 mm² copper
Cable fixed with clamps and special holding device
Truss braces:
Bolted angle sections, dimension 45 x 45 x 5 mm
with 7 bracing struts at a span length of 48,1 m
with 8 bracing struts at a span length of 54,0 m
with 9 bracing struts at a span length of 59,8 m
Truss rods:
High-tensile steel, ø 20 mm
REMARK: The Pivot main line, the bracing struts and the undertruss structure are
made up by a maximum possible quantity of identical parts. Thus it is easily
possible to adapt different span lengths.
Bolts:
DIN-grade 8.8 with lock nuts
Tower coupling:
The sturdy ball joint allows optimal adaptation to the different torsional strains caused by
unevenness of ground and different span lengths. The coupling mounted outside of the
pipe causes no necking and allows the irrigation water to pass without any hindrance.
Both coupling elements are vertically flexible up to 16°
Pipe connection with hose collar, made out of finest quality, weather proof, UV- and
ozone resistant material. ../4

Alignment control:
The alignment control ensures maximum control exactitude and operation safety.
Control angle ± 0,15 degree from neutral position.
BAUER as the only manufacturer supplies a switch lever which is directly coupled to the
flexible articulation (BAUER patent) securing an exact transfer of movement to the tower
switch box. Hence the impulses are not influenced by uneven ground.
Monitoring system with high performance electric elements, withstanding tropical
condtions.
The ample dimensioned circuit elements are protected by a solid plastic shield which is
fastened by spring vices, suitable also for high wind velocities.
Admissible gradient: up to 30 %
Tower switch box:
- Manufacturer: BAUER Ges.m.b.H., Austria
- Design and materials according to OEVE or VDE (Austrian and German electrical
standards)
- Built-in equipment according to IEC Standards and to VDE regulations
- Construction: 400 V/50 Hz three phase voltage
230 V - single phase control voltage 50/Hz
- Ample dimensioned switch elements
- Electro-mechanic microswitch for alignment control and safety shut-down (special
design for pivot systems, scrutinized for maximum exactitude, safe operation and
resistance)
- The tower switch box is completely installed and tested in BAUER Factory; no further
installation needs to be done in the project terrain.
- IC safety joint for protection against voltage spikes for longlasting durability of the
switch elements.
3. Towers
Structure:
Heavy angle iron structure, with 4 tower supports, braced with steplike arranged crossstruts
Dimension:
Tower supports: 100 x 75 x 7 mm
Cross-struts: 45 x 45 x 5 mm
../5

- 5 -
Coating:
Lasting hot dip zinc coating according to DIN 50976 for all structural members including
rims.
Wheel base:
Wheel base of 4,26 m for maximum stability. Ample dimensioned wheel bases made out
of steel pipe ø 168 mm x 2,75 mm with welded-on brackets for drive motor and wheel
gear.
Drive:
- Geared motor POWER SAVER ¾ HP
- Enclosed motor, insulation class F, special moisture proof for electric connections
- High torque drive motor ¾ HP, 400 V/50 Hz with thermal overload protection
- High efficiency spur gear with flame-hardened gearwheels
- Gear ratio: 40:1
- Expansion chamber integrated in the housing
- Shaft seals with special dirt-repelling profile
- Corrosion protection by special varnish coat
Wheel gear:
- Wheel gear type UMC 740 U, ration 50:1
- Heavy duty transmission with sturdy bevel gear bearings for high torques
- Hub shaft ø 57,2 mm with protected shaft seals
- Expansion chamber with membrane
- Entry shaft seals with special dirt-repelling profile
- Corrosion protection by special varnish coat
Drive shaft:
Ample dimensioned, galvanized square pipes 25 x 3 mm
Coupling parts with elastic element for troublefree start
Drive shaft with protecting pipe against corrosion and to avoid accidents, meeting the
international safety regulations.
Tyres:
High-flotation tyres for irrigation
Dimension: 14,9 – 24; 8 Ply
New tyres
Rim size: W 12 x 24 for 8 wheel studs
Hole circle diameter: 8"
Rims hot dip galvanized
../6

4. Overhang:
- 6 -
Complete with struts, pipe diameter 133 x 3 mm wall thickness
Length: 5,9 m, 11,7 m, 17,6 m and 23,4 m
Sand trap:
Sand trap with flush out, including valve in operation height
5. Spray Nozzle Equipment
Low pressure spray nozzles type Senninger: LDN
For the low pressure spray nozzles, BAUER propose a minimum nozzle pressure of 1,0
bar to enable fine drop resolution. The spray nozzles are mounted on the main pipe.
All spray nozzles have different colours to distinguish more easily the sizes. The nozzles
are inserted simply by hand by turning them in - no tools necessary - especially
advantageous when nozzles are blocked.
The tough and high quality Thermoplast spray nozzle has a longlasting durability and is
highly wear resisting.
The nozzles are equipped with interchangeable, grooved rebounding plates.
To secure uniform water distribution in hilly terrain, all spray nozzles are equipped with
pressure reducing valves.
Distance between the spray nozzles: 2,925 mm
To avoid excessive irrigation in the driving tracks, half-circle nozzles of 180° are used on
both sides of the tower.
For the hydraulic calculation of the Pivot supply pressure, please refer to the computer
prints.
6. Flexible Drop -pipes
Steel bend 180° galvanized -both sides with threads 3/4"
Flexible hose 3/4" , 2,5m length
Stabilizer pipes 0,5m length
(drop pipes supplied in parts for local assambling)

Technical Advantages of BAUER
Compared to other Pivot Suppliers.
1. Bauer uses main pipe lengths of 5,85m. The competitors use up to 3
different pipe lengths ranging up to 13,4m.
Advantage: Easier for manufacture, less inventory for dealer, less
complications during erection.
2. By using a pipe lengths of only 5,85m, the weight is low which makes
the handling during the installation much easier.
Advantage: 2 people can lift the main pipe by hand. With the larger
pipes offered by competitors, a crane is needed to support the weight.
3. BAUER uses only one truss rod length; Competitor are using different
length and different diameters.
Advantage: BAUER makes it easy; a simple construction and saves
inventory space for storage of parts.
4. Bauer uses 5 different truss angle packages. Other suppliers use up to
7 different angle packages.
Advantage: There are less components needed on stock and the
erection of machines is less complicated.
5. Bauer offers the most universal parts of all the suppliers.
Advantage: Stock is reduced, less spare parts, less training for service
people easier installation..
6. Bauer flexible span connection with ball and socket coupling offers a
large angle for undulating ground (uneven surfaces).
Advantage: Span coupling is used for both; flat and uneven surfaces
but some competitors (Lindsay type) have a standard and special
coupling for rough surfaces.
7. The Bauer uses the largest wheel base of 4,3 m for drive towers
Advantage: The span is more stable than competitors. An example is
in France during massive storms, competitor pivots were overturned
while the Bauer machines were unaffected.
8. Crop clearance for BAUER Pivots are 3,1m
Advantage: American producer are offering 2,8m for long
spans; crops like maize can be damaged.
9. All of Bauer components are hot dipped galvanized according to
DIN 50976 which is a higher standard than that used in the
United States.
Advantage: American based companies galvanizing is
therefore of lower quality.
Page 1 of 2

10. Bauer always uses new tires with a dimension of 14,9-24 and
galvanized rims as standard. Competitors use a tire dimension
of 11,2-24 and mostly use retread tires. Some of the rims are
only painted and not galvanized.
Advantage: greater corrosion protection and higher quality
11. Tower alignment between spans is measured from very close
to the flexible join and so the angle deviation reading is as
accurate as possible.
12. The Bauer alignment control box is not effected by torsion
caused when travelling over uneven surfaces or obstacles.
This means that a true angle reading is always given.
13. The cams in the alignment control box are larger in dimension
than all of the competitors.
Advantage: Switching points for angle alignment are easily
set and very accurate even with small variations over time.
14. Alignment control boxes are delivered with a standard setup which has been tested
before leaving the company.
Advantage :Easy to install, no settings of micro switches.
15. The Bauer tower control boxes contain specially treated micro switches for completely
safe operation even under extreme climate conditions
Advantage: Guarantees a accurate trouble-free operation under worst climate
conditions. .
16. The main control box from Bauer is manufactured in accordance to the strict ISO
regulation necessary for Austria, Germany and other European countries. The US
standard for electricity safety is much less strict.
Advantage: Bauer control boxes have a much higher electrical safety,
17. The components used in a Bauer control boxes are from high quality and well know
manufactures such as Siemens, Schrack, Schneider
Advantage: replacement parts can be easily found from local suppliers of electrical
goods.
18. BAUER offers the highest possible
comfort in packing. All important parts of
the towers are packed in wooden boxes.
Small parts, such as bolts or nuts, are
vacuum-packed in special plastic bags
Advantage: Saves time for erection and
prevents loosing small parts in the field
19. The cables for Pivots are pre-assembled, which
means that they are trimmed to the right length and
equipped with cable eyes,
Clear advantage: Facilitates the assembly of the
plant, and this saves time
Page 2 of 2

Control panel
UNIVERSAL

BAUER UNIVERSAL PRO
The Innovative Irrigation Control System
Accurate Control and Monitoring of the Centerstar 5000
� The crops are delivered
precisely the precipitation
needed due to the
microprocessor control
� Efficient and economical
irrigation management
� User-friendly
� Clear display of the operating
status
� Recording of up to 20 operating
processes
� Multilingual operating menu
� SMS control with the cellular
service

Subject to change / Universal Pro / 11 2004 e
Benefi ts and Conveniences of the
Centerstar Control System
• Input of the precipitation rate in mm
• Programming of different precipitation rates for forward
and reverse run
• Input of the number of rotations
• Preselection of the date and time for the start
• Input of an operating intermission
• Start retardation – until pressure is built up in the system
• Start-up retardation at Start and Sector switch-over
• Restart after pressure and voltage drop
• Alarm indication and recording of the last 20 processes
• Individual setting of the clock phase for a uniform irrigation
• Recording of the operating hours (wet – dry)
• System stop at the occurrence of an error
• Pump start signal
• Control of the shut-off valve
• Emergency operation, if the electronic system fails
Option
• SMS control by fitting in a GSM modem
• Power supply package onsisting of a solar panel and a
buffer battery
UNIVERSAL PRO
SMS Control with the Mobile
Telephone
The control of the CENTERSTAR by SMS offers optimal operational
comfort to the user. By just entering control commands,
the CENTERSTAR can be controlled from any location.
A wide range of replies with regard to the operating status can
be programmed individually.
Examples of input:
Messages:
ERROR
Start/forward with a precipitation height of 15 mm
Start/reverse with a precipitation height of 15 mm
Stop the system
Requesting info on the operational status
Malfunction, operating status message
Power Supply Package
With the solar panel and the buffer battery as a supplementary
equipment, SMS messaging is possible also after
power failure, e.g. after a thunderstorm.
Röhren- und Pumpenwerk
BAUER GmbH
8570 Voitsberg, Austria
Tel. +43 3142 200-0
Fax +43 3142 200-320 / -340
sales@bauer-at.com
www.bauer-at.com

Large display with clearly arranged readout
BAUER BDS 3.0 –
digitally programmed
control center
● 8 menu keys for simple input of system data, position
parameters and schedule steps
● cursor keys for quickly calling up different menus and
input screens
● number keys for precise data input in numerical values
● function switches for turning important functions ON/OFF
instantaneously (e.g. endgun, WET/DRY etc.)
without programming

Subject to change / CENTERSTAR BDS 3.0 / 09 2005 e
BAUER CENTERSTAR with BDS 3.0
System options
● Communication
with CENTERSTAR through radio modem for
system control and monitoring by means of PC
control center, radio set or GSM cellular.
● CAN bus control
(additional control p.c.b. in the tower box)
guarantees automatic CENTERSTAR alignment
as well as detailed error logging of every
tower.
Your Dealer:
Precise positioning
A rotary position transducer
with an integrated
CAN bus transmits the
exact position of the
CENTERSTAR with 0.2°
accuracy.
Precision-controlled irrigation with
permanent monitoring
Two status screens with 24 information blocks display
the operational status of the system in 6 optional languages.
Benefits:
● Four irrigation segments
Up to four segments can be programmed with
different precipitation. Allows ideal system
adjustment to varying soil and crop conditions.
● 4 ON/OFF points
For every system rotation it is possible to determine
up to four different start and stop points
for endgun, fertilizer injection, etc.
● 10 irrigation programs – for efficient irrigation
management
with individually programmable precipitation
heights, start times, breaks and numbers of rotation.
Irrigation is perfectly adjusted to existing
site and crops.
● Outputs
for remote pump start and electric shut-off
valve allow the pivot system to be run automatically.
● Precise recordings
of running hours (wet/dry), total water discharge
and error logging provide comprehensive
system details.
● Restart
for continued irrigation after interruptions
caused by pressure drop, voltage drop, and
excessively high winds etc.
● Emergency operation
in case of electronic failure.
Additional benefits:
● Software storage on EPROMS
● Simple software upgrading
● Overvoltage protection for electronics
Röhren- und Pumpenwerk
BAUER Gesellschaft m. b. H.
8570 Voitsberg, Austria
Tel. 03142/200-0, Fax 03142/200-320
www.bauer-at.com
E-Mail: sales@bauer-at.com

Bauer CAN-BUS System
-Continuous communication between
control panel BDS 3.0, absolute encoder
and pivot tower
ABSOLUTE ENCODER
- Transmits exact position of pivot
- 13 bit accuracy
- Permanent data check
CAN BUS
- Located in alignment control box
- Each span separately controlled
- Easy to programme
Röhren- und Pumpenwerk BAUER GmbH., A-8570 Voitsberg/Austria
Tel. +43 / 3142 / 200-0, Fax +43 / 3142 / 200-320
e-mail: sales@bauer-at.com, www.bauer-at.com

BENEFITS
DATA TRANSFER
- With 2-core cable to alignment control boxes
- Standard pivots using 7-core cables for pivot control
- Continuous data check
MOTOR START
- No simultaneous starts of drive motors
- Low amperage peak
- Smaller gensets and supply cables
ALIGNMENT
- Auto-alignment
- No time-consuming settings for alignment
- Important for towable systems
REPORT
- Detailed failure report
- Reason, location (span, sensor etc.)
- Easy troubleshooting
Röhren- und Pumpenwerk BAUER GmbH., A-8570 Voitsberg/Austria
Tel. +43 / 3142 / 200-0, Fax +43 / 3142 / 200-320
e-mail: sales@bauer-at.com, www.bauer-at.com

Power Saver III
Ratios:
30:1 ratio 1 ½hp
40:1 ratio .75hp
50:1 ratio .75hp
Evaluation Specification
· All aluminum gearcase and motor housing for cooler running, longer life, and increased
Corrosion resistance.
· Proven reliability.
· Dual bolt mounting pattern 5"x6", 3 3/8" x 6 3/8".
· Voltage: 460V 60 Hz, 380V 50 Hz.
· Type: Helical gear design. High strength steel shafting for long life and dependability.
· Thermally protected with automatic reset.
· All gears are heat treated.
· Shipped with gear oil.
· Specially designed input and output seals.
· Top fill plug positioned to set correct oil level.
· All critical electrical connections are encapsulated to resist penetration of moisture.
· Class F insulation and materials are used throughout.
· CSA approved.
· Efficiency 95%.
· Makes possible the use of smaller generators and smaller incoming wire sizes.
Röhren- und Pumpenwerk BAUER Ges.m.b.H.; A-8570 Voitsberg / Austria
Tel. +43/3142-200-0, Fax: +43/3142-23095; www.bauer-at.com; E-Mail: sales@bauer-at.com

Gearbox 740 U 50:1
Evaluation Specification
· New Dual output seals standard.
· Larger input bearings and reinforced housing.
· Stainless steel expansion chamber.
· Universal mount bolt pattern.
· Full cycle expansion chamber; bellows-type expansion diaphragm.
· Tapered roller bearings.
· 50:1 worm gear ratio, Various over-hung load capacities,
Peak torque in excess of 75,000 in./lbs & 4,400 ft./lbs output torque.
High strength cast iron bolt-on end caps.
· Input shafts fitted with external UV resistant dust seals.
· Dual input seals.
· Includes rib neck carriage bolts with wheel nuts.
· Each gearbox filled with extreme pressure, multi-purpose gear oil.
· Top oil fill provision.
· Each unit date stamped.
· High strength steel worm and output shaft.
· I.P. shaft guard included.
Röhren- und Pumpenwerk BAUER Ges.m.b.H.; A-8570 Voitsberg / Austria
Tel. +43/3142-200-0, Fax: +43/3142-23095; www.bauer-at.com; E-Mail: sales@bauer-at.com

Gearbox 725 TNT tow 50:1
Evaluation Specification
· Easily disengage bale and tow your pivot to its working location, then simply
re-engage bale and you are ready to run.
· Patented concentric gear engagement design.
· Simple bale engagement lever makes for quick, easy, and trouble free operation.
· Efficient and reliable alternative to BT-4B and 725-UT applications.
· Available in 50:1 and 52:1 ratios
· Lighter weight and more economical cost than standard towable gearboxes.
· Universal bolt pattern mount fits most pivot and lateral / linear towable irrigation systems.
· Positive lock in both tow and non-tow positions.
· Compatible with most standard tires sizes.
· Uses the proven heavy duty gearing as our 725-U gearbox.
Röhren- und Pumpenwerk BAUER Ges.m.b.H.; A-8570 Voitsberg / Austria
Tel. +43/3142-200-0, Fax: +43/3142-23095; www.bauer-at.com; E-Mail: sales@bauer-at.com

LDN ® LDN
Low-Drift Nozzle
®
Low-Drift Nozzle
The Senninger Low-Drift Nozzle (LDN ® ) fea-
tures a unique multiple deflector pad design.
This allows it to produce uniform sized droplets
through the wide range of nozzle flows found
on center pivots. The result is extremely efficient
water application with minimized losses to
wind drift, evaporation and runoff.
• Multiple-level deflector pads to handle the higher
flows on the middle to outer spans
• Mini deflector pads available for smaller nozzles
• Chemigate pads available: Corn (58° upward throw)
and Cotton (15° - 30° multi-level upward throw)
• Hosebarb adapter available for direct furrow
water application
• Color coded nozzles for easy size identification
• 3/4" NPT male thread
• Two-year warranty on materials, workmanship
and performance
As nozzle 0.5 sizes to 5.25 increase gpmalong the length of a pivot, 4.0 extra to deflector 9.5 gpmpads are added to accommodate 6.75 to the 14.5 higher gpmflow.
The
increased area of coverage provided by this multi-pad system aids in the reduction of instantaneous application rate, reducing
runoff and surface compaction.
Page 10 — Senninger Irrigation Inc. (407) 293-5555 — Pivot Catalog
New Weight and
Bubbler Pad
The LDN is now available
with a new slip-over
weight for better stability
in high wind and a bubbler
pad for gentle
direct-to-furrow water
delivery.
3/4 & 1 lb.
sizes
available

i-Wob ® i-Wob ®
The Senninger i-Wob uses a unique off-center
rotary action to provide outstanding uniformity
at low pressures. Its new below-the-nozzle
weight creates less stress on flexible drops.
Three models available
Standard
• black deflector
• 9-grooves
• largest area of coverage
Low-Angle - 6
• white deflector
• 6-grooves
• large droplets/
fights wind
Low-Angle - 9
• blue deflector
• 9-grooves
• gentler application/
fights wind
Page 8 — Senninger Irrigation Inc. (407) 293-5555 — Pivot Catalog
• Off-center rotary action for outstanding spray pattern
• Exclusive below-the-nozzle weight eliminates the
need for heavier, conventional drop weights
• Easy to change nozzles - color coded for size
identification
• Resilient wear sleeve cushions contact surfaces
resulting in a longer wearing, more reliable product
• Standard-angle and two low-angle models available
• 3/4" NPT male thread or hosebarb base
• Two-year warranty on materials, workmanship
and performance
Excellent distance of throw
37.7' 57'
Spray Nozzle i-Wob
The action of its wobbling shroud allows the i-Wob to
throw water much farther than spray nozzles with
stationary deflector pads. (In this example, nozzles are
at 20 psi, a 6' height, using a 11/32” nozzle, with a flow of
14.3 gpm in no-wind conditions.)
Lowest instantaneous application rate
Ordinary spray nozzles place water in a ring at the outer
edge of their wetted circle. This causes higher
application rates, soil compaction
and an increased chance of runoff.
The i-Wob uniformly covers
the inside of its wetted circle.
This means it is wetting a much
larger area at a much lower
instantaneous application rate.
In this example,
the i-Wob is wetting
over four and a half
times the area of the
spray nozzle.
(Nozzles are at
20 psi, a 6' height,
using a 11/32" nozzle,
with a flow of 14.3 gpm
in no-wind conditions.)
513
square feet
2,552
square feet
Five foot
wetted band
Spray Nozzle
i-Wob
overhead view

Pressure Regulators
Pivot Special
Regulator (PSR)
• 10 factory preset
operating pressures
(6, 10, 12, 15, 20, 25, 30,
35, 40 & 50 psi)
• Flow range from
1/2 to 15 gpm
Senninger introduced the first
high-quality in-line pressure
regulator to the irrigation industry
back in 1966. Since then,
Senninger Regulators have
become an integral part of modern
irrigation systems. They set
the standards by which all regulators
are judged.
Water Application Without Pressure Regulators
Underwatering
Desired Application Level
Water Application With Senninger Regulators
Page 18 — Senninger Irrigation Inc. (407) 293-5555 — Pivot Catalog
Pressure-Master Regulator ®
Low-Flow (PMR-LF)
Pressure-Master Regulator ®
Medium-Flow (PMR-MF)
• 10 factory preset operating pressures
(6, 10, 15, 20, 25, 30, 35, 40, 50 & 60 psi)
• Flow range from 2 to 20 gpm
Overwatering
Application remains uniform
even as elevation changes
• Maintain a constant preset outlet pressure while
handling inlet pressures up to 150 psi
• Withstand severe water hammer
• 100% water tested for accuracy, no adjustments
ever needed
• Strong, durable construction
• 9 factory preset operating pressures
(6, 10, 12, 15, 20, 25, 30, 35 & 40 psi)
• Flow range from 1/10 to 8 gpm
• Very low hysteresis and friction losses
• 3/4" NPT female x 3/4" NPT female thread
• Two-year warranty on materials, workmanship
and performance
Restriction through a
Senninger Regulator is
negligible until the exact
operating pressure is
reached. At this point,
the regulator goes into
action and automatically
maintains its designed
downstream pressure
and flow to the spray
nozzle or sprinkler head.

PIVOT /LINEAR Systems
8519400 BOOMBACK one sided -for 1moving direction
8519420 BOOMBACK double sided -for forward and reverse
•for dry wheel tracks
•adjustable nozzleheigth
•onesided or double sided
•for Ø168 mmpivot pipes
•easy to install
onesided
double sided
Röhren-und PumpenwerkBAUER GmbH.,A-8570Voitsberg/Austria
Tel. +43 /3142 /200-0, Fax +43 /3142 / 23095
e-mail: sales@bauer-at.com, www.bauer-at.com
Voitsberg 18.10.2004