Both models are driven by electric engines with a system performance of 255kW. The cranes can be recharged on a conventional jobsite electric supply (32 A, 63 A) in four and a half hours, and optionally with 125 A in two and a quarter hours. The capacity of the battery is designed for four hours lifting operation. In accordance with their name, the cranes can be operated without a cable.

“There are no compromises regarding performance or availability when compared with the conventional versions,” Liebherr-Werk Nenzing said.

The manufacturer highlights that the new machines are emissions free and have a very low noise level.

There were also some design alterations made compared to previous models in order to enhance safety, with these two having improved platforms and railings on the uppercarriage. “Thanks to the additional add-on wing for mounting lights or cameras, the design is more flexible on the whole,” the manufacturer added.

The new cabin features a modern air-conditioning system with improved airflow, an optimised field of vision and an orthopaedic operator’s seat with integrated heating and cooling.

Liebherr-Werk Nenzing has also launched the 70t HS 8070.1 duty cycle crawler crane and the LRB 23 compact piling and drilling rig, which share the same design as the LR 1200.1 and LR 1250.1.

“Especially the year 2020 has shown that one must be open-minded and bold to break new ground. With our unplugged cranes we offer our customers an alternative drive design. As we have already seen with the LB 16 unplugged, the first battery-powered drilling rig, the strategy is a complete success. Strict requirements regarding environmental sustainability in tenders for construction projects increase the demand for advanced technologies. For us, it was clear that we extend and successfully establish the design in further product groups,” said Gerhard Frainer, managing director for sales at Liebherr-Werk Nenzing.