The ESTA Awards are the highest distinction for the crane and heavy-lift industry. This year, Liebherr-Werk Nenzing won the award in the category ‘Innovation Manufacturer’. The LR 1250.1 unplugged – the world’s first battery-powered crawler crane was submitted.
“The year 2020 particularly proved that one must be bold and experimental in order to break new ground. With our unplugged crane 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. We were in no doubt that we would extend the concept to further product ranges and successfully establish ourselves there too. And we will continue to develop further unplugged models in the future,” said Gerhard Frainer, Sales Director of Liebherr Werk Nenzing GmbH during the awards ceremony.
The LR 1250.1 was launched in December 2020 and has been successfully deployed on the first jobsite in Oslo. Further models in the unplugged series will go into operation in Great Britain during the coming weeks.
The LR 1250.1 unplugged is driven by an electric motor with a power rating of 225 kW. The crane can be recharged on a conventional jobsite electric supply (32 A, 63 A) in 4.5 hours and optionally with 125 A in 2.25 hours. The capacity of the battery is designed for 4 hours lifting operation. In accordance with its name, the crane can be operated with or without a cable, thus “unplugged”, thanks to the battery-electric drive design.