The right technologies at the right time
Research and development in the past year focused, among other things, on expanding the electrification of the entire equipment portfolio. The CBG 500 E, a fully electric transshipment crane, was added in 2022. In the near future, alternatives to the proven electrohydraulic drive concept will also be offered for marine and offshore cranes. Last year, Liebherr also launched the new evolutionary stage of the mobile harbor crane, a new unplugged unit which, thanks to its battery-powered travel mode, offers the possibility of operating the LHM with electric power supply 100% emission-free without restricting its unique mobility.
In the construction equipment segment, six new unplugged models were launched in 2022: the LRH 100.1 unplugged and LRH 200 unplugged piling rigs, the LB 25 unplugged and LB 30 unplugged drilling rigs, and the LR 1130.1 unplugged and LR 1160.1 unplugged crawler cranes. During operation, the machines can be connected to a conventional power supply or used wirelessly. In total, more than 20 machines of the unplugged series are already in operation worldwide. In addition to the newly developed concepts, however, the existing drive systems are also being permanently refined in terms of performance, efficiency, and cost in order to defend Liebherr’s innovative edge.
The ship to shore container cranes and rail mounted gantry cranes have always been powered by electricity and now, our electric rubber tyre gantry cranes are available with a choice of cable reeling drum or busbar power supply. In addition, hybrid RTGs with onboard energy recovery and storage are available. All these electric machines have an active front end to return energy to the grid, and our Liebherr Liduro drive systems are continually developed to ensure maximum energy efficiency of all our cranes.
Hydrogenated vegetable oil, also known as Hydrotreated Vegetable Oil (HVO for short), plays an important role at Liebherr. HVO is an alternative fuel which, in its pure form or as an additive to fossil diesel, can now power a large proportion of Liebherr’s construction machinery, cranes and mining equipment, reducing greenhouse gas emissions by up to 90%.