Liebherr crane improvements embrace world’s first battery-powered crawler cranes, concentrate on security

Liebherr LR 1250.1 Unplugged battery-powered crawler crane on a job web site in Norway.

The world’s first battery-powered crawler cranes

Following the introduction of its LB 16 Unplugged drill rig, Liebherr has launched the world’s first two battery-powered crawler cranes, the LR 1250.1 and LR 1200.1. This 12 months ESTA, the European Affiliation of Irregular Highway Transport and Cellular Cranes, awarded Liebherr’s LR 1250.1 Unplugged crawler crane its award for Innovation: Producer.

The Unplugged cranes are powered by an electrical motor rated at 225 kW. The LR 1200.1 Unplugged has a most lifting capability of 200 tonnes whereas the LR 1250.1 lifts as much as 250 tonnes. Along with providing zero-emissions operation, the low noise ranges of those cranes swimsuit them for work that have to be carried out in environments which can be delicate to noise.

In response to Liebherr, these cranes may be charged in about 4.5 hours utilizing standard job web site electrical energy provide, or 2.25 hours at the next amperage. Tyler Bragg, divisional supervisor – basis gear/crawler cranes at Liebherr-Canada, famous that these cranes are constructed on the identical platform as their diesel-powered counterparts and efficiency is comparable; with no engine to service, upkeep is decreased – there are not any filters to alter or fluids to prime up, the battery simply requires a visible inspection.

A single cost will final for 4 hours of lifting unplugged and the crane may be operated with the umbilical plugged in for steady energy.

In response to Kyle Jardine, divisional director – cellular and maritime cranes at Liebherr-Canada, the supply of unplugged cranes provides Liebherr the chance to present contractors a aggressive benefit for bidding jobs which have stringent emissions necessities, notably as massive firms are searching for options that match inside their sustainability plans for tasks and are turning to crane rental firms with that want.

Bragg added that, given the upfront price of the Unplugged fashions, the curiosity is coming from massive common contractors and gear firms which have developed well being and security and environmental plans. He expects that these cranes can be used for downtown metropolis work that’s near a central grid and the place decrease emissions and noise ranges are desired.

Liebherr is at the moment engaged on certification for North America with availability anticipated towards the tip of 2021; these cranes have already been authorized for and launched in Europe, with the primary LR 1250.1 mannequin going into operation in Oslo, Norway. The crane was ordered by Kynningsrud Nordic Crane AS earlier than it was absolutely designed, with Eirik Kynningsrud, common supervisor at Kynningsrud Nordic Crane AS noting that the federal government desires zero-emission development websites within the nation and the corporate was completely satisfied to paved the way in delivering inexperienced options.

Liebherr expects to introduce Unplugged variations of the smaller LR 1130 and LR 1160 later this 12 months.

LR 1700-1.0 crawler crane

The LR 1700-1.0 700-tonne-capacity crawler crane is Liebherr’s new successor to its LR 1600/2. The crane’s dimensions are much like the predecessor, however delivers larger lifting functionality. All transportation models for this crane are a most of three metres broad apart from the H lattice sections of the principle increase, that are 3.5 metres broad. In response to Liebherr, this crane can meet extra stringent width limitations and the corporate can provide the increase with 3-metre-wide lattice sections if wanted. Transportation weight of the slewing platform and the crawlers every is available in at beneath 45 tonnes.

This crane is good for industrial work and wind turbine set up tasks. With a 102-metre foremost increase and a 96-metre luffing jib, this crane may be raised for 198 metres. For wind turbine set up, most increase size is 165 metres with additional H sections and a 15-metre fastened jib may be added.

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