Drilling rig and heavy equipment manufacturer Liebherr has unveiled a new compact piling and drilling rig type, the LRB 23, which the company says closes the gap between its existing LRB 16 and LRB 355 rigs.
In a release, Liebherr says the LRB 23 offers 600 kW of engine output for all common deep foundation work, including drilling with a Kelly drill, double-rotary drill, full displacement equipment and continuous flight auger. It can also perform soil mixing and applications with a vibrator or hydraulic hammer.
Liebherr says the LRB 23’s compact design allows for transportation in one piece, simplifying mobilization between jobsites. In addition, the remote control simplifies the loading process for transportation, as well as the assembly of the machine.
The company says the advantages of the LRB 23’s rigid leader show in operation. The rotary drive BAT 300 delivers a maximum torque of 300 kNm. Since it can withstand high torques, Liebherr says even Kelly drilling is possible — unique for a machine of this size.
The LRB 23’s Kelly visualization system makes it easier to lock the Kelly bar’s telescopic sections, Liebherr says. An in-cabin monitor displays the Kelly bar’s locking recesses in real time, keeping the operator informed about the actual distance to the next locking recess. Color 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.
A drilling assistant automates the concreting process during CFA drilling. Liebherr says that and other assistance systems lead to time savings, higher machine availability and an increase in safety during operation.
Liebherr’s product range includes earthmoving and material handling machinery, mining equipment, mobile cranes, construction cranes, machine tools and automation systems as well as high-performance components for mechanical, hydraulic and electrical drive and control technology. For more information, go to www.liebherr.com.