Page 1
Technical data
Piling and drilling rig
LRB 255
Page 2
Concept and characteristics
Leader top for auxiliary rope
Tool with quick connection
Leader
Leader support arm
Vertical travel device
Rope crowd system
Auxiliary winch
Lateral inclination device
Longitudinal inclination device
Support arm brace
Leader rotation device
Undercarriage
• High engine output with automatic engine speed
control
• Controlled entirely from cab
• Sturdy and solid rig design
• Wide longitudinal and lateral supporting system on
the basic machine through triangles
• High push and pull forces
• High torque
• Completely self–rigging (no auxiliary machines
required)
• Large range of working tools (all piling and drilling
works can be performed)
• Stepless leader inclination 1:6 forward – 1:3 backward
depending on type of equipment
Radius adjustment device
Uppercarriage
• Leader swing range ± 90º
• Increase of effective leader length (3 m) via vertical
travel device
• Automatic vertical alignment
• High alignment forces
• Simultaneous control of several movements via
Load–sensing multi–circuit hydraulics
• Quick change of equipment possible through quick
connection
• Equipment design according to latest European
regulations and standards
• High manufacturing quality through quality control by
PDE–system
2 LRB 255
Page 3
Transport dimensions and weights
7725
22085
5890
8470
900
3200
400
3950
1245
3490
Transport with leader
includes the basic machine (ready for operation) with leader,
without working tools (such as rotary, Kelly bar etc.) and without
counterweight.
22085
Transport leader
includes the leader without working tools
(such as rotary, Kelly bar etc.).
7150
3200
Dimensions and weights
Leader length 21.2 m 24.2 m 27.2 m 30.2 m
Weight complete
without counterweight*
68.3 t 69.4 t 70.6 t 71.8 t
2850
1670
Dimensions and weights
Leader length 21.2 m 24.2 m 27.2 m 30.2 m
Weight
27.3 t 28.4 t 29.6 t 30.8 t
1245
900
1690
5890
3490
Transport basic machine
ready for operation
Basic machine*
*) Weights can vary with the nal con guration of the machine.
400
41 t
3300
3070
800
Weights
Counterweight 12.5 t
1370
LRB 255 3
Page 4
Dimensions
Basic machine LRB 255
1:6
21200 (24000) [27200] {30200}
5700
1:3
800
4000 4230
900
2.8°
2.8°
4700
90°
90°
Technical data
Leader length 21/24/27/30 m
Capacity hammer including cap plus pile
Max. hammer weight 15 t
Max. pile weight 15 t
Max. pull, leader on ground 450 kN
Max. torque 300 kNm
Working radius machine
center of rotation — front edge leader
Stepless rig inclination adjustment
Lateral inclination
Forward inclination 1:6
Backward inclination 1:3
Vertical leader adjustment
above ground level (depending on radius)
below ground level (depending on leader length) 5 m
Leader swing range ± 90°
30 t
3.2 — 4.9 m
± 1:20
3 m
R 4200
Operating weight and ground
pressure
Total weight with 900 mm 3–web shoes 80.8 t
Ground bearing pressure 0.91 kg/cm
The operating weight includes the basic machine LRB 255 (leader
length 21.2 m, without working tools) and 12.5 t counter weight.
2
4 LRB 255
Page 5
Technical data
Engine
Power rating according to ISO 3046, 670 kW (898 hp) at 1900 rpm
Engine type MAN D 2842 LE
Fuel tank 795 l capacity with continuous level
indicator and reserve warning
Engine complies with NRMM exhaust certication EPA/CARB Tier 2.
Hydraulic system
The main pumps are operated by a distributor gearbox. A xial piston
displacement pumps work in open circuits supplying oil only when
needed (ow control on demand).
The hydraulic pressure peaks are absorbed by the integrated
automatic pressure compensation, which relieves the pump and
saves fuel.
Pumps for working tools 2x 400 l/min and 1x 350 l/min
Separate pump for kinematics 129 l/min
Separate pump for crowd system 300 l/min
Hydraulic oil tank 1000 l
Max. working pressure 350 bar
No auxiliary power packs are required as application specic
hydraulics supply power to all components.
The cleaning of the hydraulic oils occurs via an electronically
monitored pressure and return lter.
Any clogging is shown on the display in the cab.
The use of synthetic environmentally friendly oil is also possible.
Control
The control system – developed and manufactured by Liebherr – is
designed to withstand extreme temperatures and the many heavy–
duty construction tasks for which this machine has been designed.
Complete machine operating data are displayed on a high resolution
monitor screen. A GSM modem allows for remote inquiry of machine
data and error indications. To ensure clarity of the information on
display, different levels of data are shown in enlarged lettering and
symbols.
Control and monitoring of the sensors are also handled by this high
technology system. Error indications are automatically displayed on
the monitor in clear text. The machine is equipped with proportional
control for all movements, which can be carried out simultaneously.
Two joysticks are required for operation. Pedal control can be
changed to hand control.
Options :
PDE : Process data recording
Main winch with freefall
Line pull (effective) 200 kN
Rope diameter 30 mm
Line speed 0 - 89 m/min
Auxiliary winch
Line pull (effective) 80 kN
Rope diameter 20 mm
Drum diameter 320 mm
Line speed 0 - 48 m/min
Crawlers
Propulsion through axial piston motor, hydraulically released spring
loaded multi–disc brake, maintenance free crawler tracks, hydraulic
chain tensioning device.
Drive speed 0 – 1.5 km/h
Track force 622 kN
Width of 3-web track shoes 900 mm
Swing
Consists of triple-row roller bearing with external teeth and two
swing drives, xed axial piston hydraulic motor, spring loaded and
hydraulically released multi– disc holding brake, planetary gearbox
and pinion. Selector for 3 speed ranges to increase swing precision.
Swing speed from 0 – 4.5 rpm is continuously variable.
Rope crowd system
Crowd force push/pull 450/450 kN
Line pull (effective) 150 kN
Rope diameter 24 mm
Line speed 0 - 87 m/min
The winches are noted for compact, easily mounted design.
Propulsion is via a maintenance-free planetar y gearbox in oil bath.
Load support by the hydraulic system; additional safety factor by
a spring–loaded, multi–disc holding brake. All line pull values are
effective values. The efciency factor of approx. 25% has already
been deducted.
Noise emission
Noise emissions correspond with 2000/14/EC directive on noise
emission by equipment used outdoors.
LRB 255 5
Page 6
High frequency vibrator
Model 40 VML with hydraulic sheet pile feeder
Double clamp and hydraulic sheet pile feeder
Effective length – max. 28 m Display for vibrating
Technical data
Static moment 0 – 40 kgm
Max. speed 2000 rpm
Max. centrifugal force
Max. amplitude 0-16 mm
Total weight without clamp
Dynamic weight with clamp 4400 kg
Length
Width 750 mm
Height (without clamp)
Min. width 500 mm
1750 kN
6200 kg
2300 mm
2500 mm
6 LRB 255
Page 7
Sheet pile press
Model 4125
Effective length – max. 28 m Display for sheet pile press
Technical data
Push force 4x 1250 kN
Pull force 4x 1000 kN
Stroke of cylinders
Distance between cylinders 600-670 mm
Working pressure
Weight approx. 9500 kg
400 mm
max. 300 bar
LRB 255 7
Page 8
High frequency ring vibrator
Model 32 VMR
Ring vibrator with platform and concreting system
Effective length – 40 m
Technical data
Static moment 0 – 32 kgm
Max. speed 2300 rpm
Max. centrifugal force
Max. pull force 450 kN
Max. pull down
Amplitude 0-5 mm
Casing diameter
Total weight 12500 kg
Max. hydraulic pressure
Hydraulic ow 860 l/min
1800 kN
450 kN
356-610 mm
350 bar
Display for vibrating
8 LRB 255
Page 9
Hydraulic hammer
Model H 110
Effective length – max. 27 m Display for impact driving
Technical data
Hammer model H 110/9 H 110/7*
Ram weight
Max. rated energy 106 kNm 83 kNm
Blow rate
Hammer weight
incl. ram 12500 kg 10300 kg
Hydraulic pressure
Hydraulic ow 215 l/min 215 l/min
*) The 9000 kg ram can be replaced by a 7000 kg ram.
9000 kg 7000 kg
36-100 blows/min 40-100 blows/min
250 bar 230 bar
LRB 255 9
Page 10
Double rotary drilling
Model DBA 300
Hydraulic casing guide
Technical data
Drilling drive I – torque 300 kNm
Drilling drive I – speed
Drilling drive II – torque
Drilling drive II – speed
*) Other drilling diameters and drilling depths available on request
26 rpm
150 kNm
31 rpm
Display for double rotary drilling
Performance data
Max. drilling diameter* 900 mm
Max. drilling depth*
Max. pull force (crowd winch and Kelly winch)
18.5 m
850 kN
10 LRB 255
Page 11
Kelly drilling
A
X
1900
Model BA 250
Shock absorber for Kelly bar
Technical data
Drilling drive - torque 1
Drilling drive - speed 1
Drilling drive - torque
Drilling drive - speed 2
st
gear 250 kNm
st
gear 25 rpm
nd
2
gear 125 kNm
nd
gear 50 rpm
Performance data
Max. drilling diameter* 2200 mm uncased
Max. drilling diameter* 1800 mm cased
*) Other drilling diameters available on request.
Display for Kelly drilling
Kelly bars
Kelly type A X Drilling
depth
(mm) (mm) (m) (t) (mm)
MD 28/3/24 9880 12000 21.8 5.0 419
MD 28/3/27 10880 11000 24.8 5.45 419
MD 28/3/30 11880 10000 27.8 5.9 419
MD 28/3/33 12880 9000 30.8 6.35 419
MD 28/3/36 13880 8000 33.8 6.8 419
MD 28/4/36 11130 10750 33.8 7.0 419
MD 28/4/42 12630 9250 39.8 8.0 419
MD 28/4/48 14130 7750 45.8 9.0 419
MD 28/4/54 15630 6250 51.8 10.0 419
Other Kelly bars available on request.
When using a casing oscillator, value X has to be reduced
by 1500 mm.
Weight Kelly Ø
LRB 255 11
Page 12
Continuous fl ight auger drilling
Model BA 250
Auger with hydraulic auger cleaner
Effective length – max. 28 m
Technical data
Drilling drive - torque 1
Drilling drive - speed 1
Drilling drive - torque
Drilling drive - speed 2
st
gear 250 kNm
st
gear 25 rpm
nd
2
gear 125 kNm
nd
gear 50 rpm
Display for continuous ight auger drilling
Performance data
Drilling depth without auger cleaner* 23.0 m
Drilling depth with auger cleaner*
Max. pull force (crowd winch and Kelly winch)
Max. push force (weight of rotar y and auger to be added)
Max. drilling diameter*
*) Other drilling diameters and drilling depths available on request
21.5 m
850 kN
200 kN
1000 mm
12 LRB 255
Page 13
Process data recording system - PDE
®
(additional equipment)
The Liebherr process data recording system PDE® constantly records the relevant process data
during the working process.
pile number
59%
10%
Ø60cm
ABC
for visualization of the PDE
Standard
Optional
3.5 m
3.78 m
4.0 m
4.5 m
5.0 m
5.5 m
0 5 10 45 bar
3040506070
PDE® colour monitor
in the operator's cab
PC provided
by the customer
®
data
12A/23
CompactFlash
memory card
Printer
Process data report software
SCULI PDR
®
PDE
External sensors
Depending on the application the recorded and processed data are displayed on the PDE® touchscreen in the operator‘s cab, e.g. in the form
of an online cast-in-place pile.
At the same time the PDE® is operated using this touchscreen. The operator can enter various details (e.g. jobsite name, pile number, etc.)
and star t and stop recordings. A recording of ever y star t-stop cycle carried out in the PDE® is established on a CompactFlash memory card.
The PDE® can be con gured in a number of ways, e.g. for the connection of external sensors, for the generation of a simple protocol as graphic le and/or for a printout directly in the operator‘s cab.
Process data reporting - PDR (additional equipment)
Comprehensive data evaluation and generation of reports on a PC is possible using the software
SCULI PDR.
Recordings management - The recordings generated by the PDE® system can be imported and managed
in SCULI PDR. The data can be impor ted directly from the CompactFlash card or via the Liebherr telematics
system LiDAT. Certain recordings, e.g. for a particular day or jobsite, can be found using lter functions.
Viewing data - The data in each record is displayed tabularly. Combining several recordings provides
results, for example, regarding the total concrete consumption or the average depth. Furthermore, a diagram
editor is available for quick analysis.
Generating reports - A vital element of SCULI PDR is the report generator, which allows for the generation
of individual repor ts. These can be printed out directly or stored as pdf les. In the process the size, colour,
line thickness or even the desired logo can be con gured. Moreover, the reports can be displayed in different languages, e.g. in English and in the national language.
CFA Drilling
job site:
machine ID:
start date:
start time:
stop time:
duration:
motorway
1155xx
05.11.2008
12:16:48
12:48:48
00:32:00
pile number:
maximum depth:
total concrete vol.:
concrete volume pile:
overconsumption:
maximum incline:
E02
2227 cm
15,123 m³
14,531 m³
29,8 %
0,4 °
LRB 255 13
Page 14
Crane equipment
See technical datasheet HS 845 HD.
14 LRB 255
Page 15
Notice
LRB 255 15
Page 16
Liebherr-Werk Nenzing GmbH
P.O. Box 10, A-6710 Nenzing/Austria
Tel.: +43 50809 41-473
Fax: +43 50809 41-499
crawler.crane@liebherr.com
www.liebherr.com
LRB 255 – 890057014 – 03/2010 Subject to change without notice.
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