Liebherr has equipped the HS 8100.2 duty cycle crawler crane with 15% more engine power than its predecessor, and the maximum winch line pull of 2 x 295 kN has been increased by 9%. This updated crane can now be used with heavier slurry wall grabs – both mechanical and hydraulic.
In dragline operation, the increased engine power results in better digging force, while in dynamic soil compaction, the drop weight can be raised again more quickly. The rope can be changed more easily, thanks to the newly designed rope lock on the winches. The booms of the HS 8070.1, HS 8100.1 and HS 8100.2 dual power are compatible with the new model and are interchangeable for Liebherr customers.
The HS 8100.2 is built for user-friendliness, easy maintenance and high safety. Railings and platforms now remain on the uppercarriage during transport – just like the access ladder for service work on the roof, which has been integrated into the uppercarriage.
Featuring a compact width of 3.5 m and a weight of only 60 t, the uppercarriage and the undercarriage can be transported in one piece, ensuring fast set-up and availability on the jobsite. As an option, the crawler side frames can be removed using a self-loading system.
The repositioned tank neck is accessible via the platforms on the uppercarriage. It is no longer necessary to climb onto the roof of the crane to carry out this work. For all main drives of the HS 8100.2, fill level indicators on the operator’s monitor help simplify and reduce machine servicing. If work begins when it’s dark, the operator can use a remote control to light up the cab access and enter safely.
LB 35 drilling rig
The latest generation of Liebherr’s LB 35 drilling rig is ideal for Kelly drilling, continuous flight auger drilling and double rotary drilling. For applications with full or partial displacement equipment, the maximum drilling depth has been extended to 37.5 m, thanks to the new lattice boom extension. This corresponds to an increase of 6 m.
The LB 35 is powered by a 450 kW diesel engine and delivers 350 kNm of torque, with a maximum winch line pull of 300 kN. Thanks to the parallel kinematics, the machine offers a large working area, enabling short working cycles.
The leader top is designed for different drilling axes, making the LB 35 suitable for a wide range of applications. Both the leader and the counterweights feature a modular design for high flexibility. The machine can be transported in one piece with a folded leader, reducing set-up time and facilitating efficient movement between jobsites.
The working processes of the LB 35.1 can be automated using a variety of assistance systems, thus increasing efficiency as certain work steps are completely taken over by the machine’s control system. Examples include the drilling assistant to automate the concreting process during continuous flight auger drilling; slack rope monitoring to prevent undesired loosening of the rope with the aid of the winch control; and automatic leader alignment to align the leader to the previously set inclination angle.
The new overload protection of the Kelly winch ensures that the locked Kelly bar automatically stops the crowd winch if the maximum permissible load of the Kelly winch is exceeded. The rope length measurement of the auxiliary winch measures the length of the unwound rope, which is helpful when inserting reinforcement cages, for example. Locking of the Kelly bar’s telescopic sections is made significantly easier due to the Kelly visualisation system in the LB 35.1.
Thanks to the real-time display of the Kelly bar’s locking recesses on the cab monitor, the operator is permanently informed about the actual distance to the next locking recess. Colour indications inform when the bar can be locked. Furthermore, false positioning of the Kelly bar during the shake-off process is indicated through a warning signal.
In the new cab, Liebherr has focused on ergonomics and operating comfort. This is achieved with an orthopedic operator’s seat, individually adjustable monitors and a cool box for food. The new refuelling position of the machine, which is easily accessible from the crawlers, also increases convenience on the jobsite.
LRB 19 piling and drilling rig
The new LRB 19 piling and drilling rig can be deployed on a wide range of deep foundation projects. For piling or vibrating applications, the machine is fitted with the H 6 hammer or the LV 23 and LV 23 F vibrators, all from Liebherr. Drilling with Kelly equipment, double drilling head, full displacement equipment and continuous flight auger or soil mixing are further areas of application. The name LRB 19 reflects the maximum travel distance of the sledge: 19 m.
The various attachments can be easily exchanged using the hydraulic quick connection system. All hydraulic, mechanical and electrical connections are automatically coupled. This significantly reduces the set-up time and prevents connection errors. A new hose sledge ensures that there are no more obstructive hoses during use, which makes the installation of sheet piling much simpler. When drilling, the optional pulling device can increase the pull force of the LRB 19 by 110 kN.
This new piling and drilling rig is the successor to the Liebherr LRB 16 and LRB 18 models. Powered by a 450 kW diesel engine, the LRB 19 features the BAT 180.1 rotary drive with a maximum torque of 180 kNm, as well as a low transport weight of 48.2 t including 8 t of counterweight and auxiliary winch. The compact design allows for transportation in one piece with the vibrator attached, making mobilisation between jobsites straightforward and more flexible.
The LRB 19 is also equipped with a self-assembly system for the counterweight, so no additional crane is required. The all-round platform with railings on the uppercarriage enables high accessibility and safety during maintenance work or inspections on the machine. The optimised arrangement of the LED headlights provides excellent visibility in the work area, even at night.
All Liebherr assistance systems for deep foundation applications are available for the LRB 19. The LIPOS positioning system uses the latest satellite technology to support the operator in precisely aligning the attachment tools during drilling or piling operations. During continuous flight auger drilling, the concreting process is automated thanks to the drilling assistant. The pre-defined parameters are implemented by the control system. These can be adjusted during the drilling process, if necessary. The vibro-replacement process also runs automatically, thanks to the vibro-assistant.
Working area restriction helps the operator to monitor the rotation range, working radius or machine height (height adjustment). As soon as the operator tries to move the machine into the pre-defined restricted area, it stops automatically and thus prevents possible collisions. Other assistance systems, such as ground pressure visualisation or eco-silent mode, increase the efficiency of the machine and the comfort of the operator.
