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LiebherrDeep foundation
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Deep FoundationMachinesDrilling rigsLB 55

The LB 55 drilling rig is the most powerful representative of the well-known LB series from Liebherr. Besides the common Kelly drilling other methods like continuous flight auger drilling, drilling with full displacement tools or double rotary drilling can be applied. The heavy-duty machine with an enormous torque of 550 kNm is very compact in design which guarantees a cost effective transportation and fast mobilisation on site. The rig is equipped with a powerful diesel engine which convinces through low consumption and reduced emissions. In combination with the board hydraulics and the opera...

metricimperial

  • Operating weight - 162.5 - 178.2 t

  • Max. torque - 557 kNm

  • Kelly drilling, max. drilling depth - 120.4 m

  • Kelly drilling, max. drilling diameter - 4,800 mm

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High performance
Strong winches enable highest performance even under the most difficult conditions. Furthermore, the noise emission is considerably reduced thanks to their elastic mounting.
Modular design
Both the counterweight and the leader are modularly constructed. This enables quick and easy assembly and flexible application.
Increased drilling depth
The maximum drilling depth for Kelly drilling with 5-fold Kelly bar has been increased to 100 m and so significantly improved.
Various drilling axes
The leader top is designed for different drilling axes and is therefore suitable for all applications.
Easy transportation and quick set-up
Basic machine and leader with all hydraulic hoses connected can be transported in one piece. The minimized assembly work allows for quick and easy transportation of the machine between jobsites. Hence, time and money is saved even before operation starts.
Comfort
This includes a modern air-conditioning system with improved airflow, an optimized field of vision and increased noise protection, as well as an orthopaedic operator’s seat with integrated heating and cooling.
Operating weight
162.5 - 178.2 t
Max. torque
557 kNm
Max. crowd force
560 kN
Drive
Conventional (diesel engine)
Engine power
565 kW
Kelly drilling, max. drilling depth
120.4 m
Kelly drilling, max. drilling diameter
4,800 mm
Continuous flight auger drilling, max. drilling depth
32.6 m
Continuous flight auger drilling, max. drilling diameter
1,200 mm
Full displacement drilling, max. drilling depth
33.6 m
Full displacement drilling, max. drilling diameter
800 mm
Double rotary drilling, max. drilling depth
23.0 m
Double rotary drilling, max. drilling diameter
900 mm
Soil mixing, max. effective length
33.0 m
Min. transport width
3,475 mm
Min. transport height
3,505 mm
Soil mixing, max. mixing diameter
1,500 mm
Automatic casing drive adapter
The automatic casing drive adapter with remote control for locking and unlocking the casing pipe offers significant advantages in terms of safety as no personnel is exposed to the hazardous area. In addition faster production cycles can be achieved.
MyJobsite
One single tool for the collection, documentation and analysis of all process, machine, construction site and position data.
Recording of working processes (PDE)
With the PDE process data recording system machine data is recorded during the working process.
Ground Pressure Visualization
The Ground Pressure Visualization calculates the current ground pressure of the machine in real time and compares it with the specified safety limits of the relevant jobsite.
Remote control
The remote control simplifies the loading process for transportation as well as the assembly of the machine.
Kelly Visualization
Locking of the Kelly bar’s telescopic sections is made significantly easier due to the Kelly Visualization system.
Kelly drilling
Kelly drilling belongs to the most common dry rotary drilling methods. Soil and rock material is conveyed to the surface discontinuously with relatively short rotary drilling tools.
Continuous flight auger drilling
The loosened soil material is continuously conveyed to the surface using a continuous auger, the so-called continuous flight auger.
Full displacement drilling
Full displacement drilling is a modification of continuous flight auger drilling. The drilling tool used is a smooth pipe with an auger-type starter piece.
Double rotary drilling
Double rotary drilling combines continuous flight auger drilling with a continuous casing.
Wet soil mixing
For wet mixing a self-hardening suspension is introduced into the ground.
Down-the-hole drilling
For down-the-hole drilling a hammer is mounted on the lower end of a drill rod. The hammer is activated by adding compressed air.
Kelly Bohreimer
Kelly Bohrrohre
Kelly Bohrschnecken
Kelly Kernbohrrohre
Kelly Sonderwerkzeuge
SOB Endlosschnecken

  • MyJobsite – Your work at a glance

  • LIPOS - Liebherr Positioning System

  • Video - Automatic engine stop control explained

  • Drilling assistant

  • Diagnosis screen and remote control

  • Ground Pressure Visualization

  • Rotary drive I (casing) - max. torque - 0 - 300 kNm

  • Rotary drive I (casing) - max. speed - 0 - 26 U/min

  • Rotary drive II (auger) - max. torque - 0 - 150 kNm

  • Rotary drive II (auger) - max. speed - 0 - 30 U/min

  • Torque - 550 kNm

  • Speed - 34 U/min

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Attachments

With the attachment devices developed and manufactured in-house, we consolidate our position as a full-service provider in the deep foundation industry.

Drilling tools

Drilling tools vary depending on the drilling diameter, drilling depth and the ground conditions.

Foundation methods

Deep foundation machines from Liebherr can be applied for all common drilling methods, for slurry wall installation and soil improvement.

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Application technology

Our application specialists assist with the correct choice of application and the most suitable machine configuration.

Digital solutions

We offer a number of IT solutions, which provide substantial support for all those involved in the construction site.