Liebherr MK120-5.1E electric mobile crane rolls into Bern

The first-ever Liebherr MK 120-5.1E electric crane in customer hands has rolled into the narrow, historic streets of Bern’s old town at 20 meters tall with a 45 meter reach and (of course) zero emissions, no vibrations, and almost no noise.

Deployed by Swiss construction firm Zaugg AG Rohrbach, the new Liebherr electric mobile crane is working hard placing temporary roofs above operational construction sites. It’s precise work, since the narrow streets of Bern’s historic old town weren’t even built for cars — much less massive, five-axle construction machinery. The prices controls and smooth operation of the electric drive mean the MK120-5.1E’s operators could confidently navigate the narrow streets without causing damage and creating new, unpaid jobs for themselves.

“The all-wheel steering allows us to manoeuvre easily in the narrow alleyways,” explained Stefan Stettler, head of the crane department at Zaugg AG Rohrbach. In reverse gear, the crane worked its way along the historic Rathausgasse to its construction site, past the arcades typical of the old town.

In addition to on-board power, the mobile crane can also be plugged into on-site grid power where available, or any mobile power sources capable of offering a steady 63 AMP output for lifting work. A mobile Liebherr Liduro Power Port LPO 100 was on hand in Bern, made available to Zaugg expressly for this purpose. With the Liduro LPO 100 fully charged, Liebherr says the stored energy is good for two full days of crane work.

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“The low-noise and emission-free crane work is naturally pleasant for (Bern’s) residents, tourists and passers-by,” explained Stettler. “Especially as we only extended the crane support on the side facing away from the construction site by 50 per cent, allowing pedestrians and cyclists to pass through at all times.”

The MK120-5.1E electric mobile crane offers 8,000 kg (~17,650 lbs.) of lifting capacity, and all of the crane’s drives and winches are powered by electric motors, eliminating both the need to “warm up” or service oil-based hydraulics. It can be had with either a 98 kWh on-board battery (shown) or a 544 hp Liebherr diesel genset.

Electrek’s Take

From compact wheel loaders to radical two-wheeled dumper concepts to massive battery electric retrofit excavators, Liebherr is absolutely killing it in the heavy equipment electrification race. Their electric equipment offerings are proving that EVs can get even the heaviest jobs done, and save big fleets even bigger money while doing it.

SOURCE | IMAGES: Liebherr, via Construction Equipment.

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