At this year’s IFAT in Munich, Liebherr unveiled the battery-electric L 507 E stereoloader , the OEM’s first electric wheel loader.
The L 507 E’s performance is identical to that of diesel-powered Liebherr wheel loaders in the same size class. However, it emits no carbon dioxide onsite. As well, noise emissions are kept to a minimum, which makes the wheel loader particularly suitable for applications where noise or exhaust fumes are a factor, for example at recycling centres in city centres or in the halls of recycling companies.
To power the loader, Liebherr used a high-voltage battery system, specially developed for L 507 E wheel loader applications, which ensures powerful performance and efficient charging. Depending on the respective operating conditions, the L 507 E offers a run time of up to eight hours. Liebherr’s modular battery design also makes it possible to install a second lithium-ion battery at the customer’s request, which further increases the running time. Depending on the on-board charging technology and power rating, the battery can be fully charged in about one and a half to three hours.
With the 507 E, the battery-electric drive means that full power is always available. The operator benefits from dynamic working movements and responsive handling.
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As standard, the wheel loader has a top speed of 20 km per hour. However, the L 507 E is also optionally available in a Speeder version that reaches a speed of up to 30 km per hour, making it easier to move from one jobsite to another.
To increase efficiency, the energy generated downhill and during braking is fed back into the battery through recuperation.
The L 507 E is based on the 68-hp Liebherr L 507 stereo wheel loader. This means the battery-electric wheel loader also features stereo steering. The combination of articulated steering and steered rear axle combines the advantages of conventional articulated steering with those of all-wheel steering. This results in a minimal turning circle and a reduced articulation angle of 30 degrees, which increases the stability of the wheel loader.
Liebherr has also installed its articulated pendulum joint in the L 507 E wheel loader, which compensates for uneven ground and ensures the wheel loader has excellent stability.
