Liebherr LRB 23 piling and drilling rig, recently showcased at bauma 2022, provides an engine output of 600 kW, making it suitable for common deep foundation works, such as Kelly drilling, double rotary drilling, full displacement drilling and continuous flight auger drilling, as well as soil mixing and applications with a vibrator or hydraulic hammer.
Featuring a compact design, the LRB 23 can be transported in one piece, resulting in easy mobilisation between jobsites. The remote control simplifies the loading process for transportation and also the assembly of the machine.
The advantages of the rigid leader are proven in operation. It can withstand high torques, even Kelly drilling is possible, said Liebherr. The BAT 300 rotary drive delivers a maximum torque of 300 kNm.
Locking of the Kelly bar’s telescopic sections is made easier with the aid of the Kelly visualisation system. Thanks to the real time display of the Kelly bar’s locking recesses on the cabin 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.
During continuous flight auger drilling, the concreting process is automated – thanks to the drilling assistant. All assistance systems contribute towards time savings, higher availability of the machine, and a significant increase in safety during operation.