These concrete mixer trucks dispense with diesel engines Commercial vehicle industry Industry sectors

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With the Swiss company Designwerk, manufacturer Liebherr has developed the first fully electric concrete mixer trucks with a ten or twelve cubic meter drum on a five-axle chassis. These are concrete mixer trucks with the designations ETM 1005 and 1205. Both are based on a chassis from Futuricum. The said chassis comes from the FM series from Volvo Trucks and houses an electric motor with an output of 500 kilowatts.

The fully electric concrete mixer trucks are designed for shorter distances because the distances from the concrete plant to the construction site are relatively short compared to freight transport. Likewise, the vehicles always return to the concrete plant, where the batteries can be recharged with electricity through a charging station. Usually this can happen overnight.

Liebherr and ZF have also developed a drum drive that consists of a unit consisting of an electric motor and mixer gear. This eliminates the need for hydraulics – no hose connections, no pumps, and therefore no risk of a leak. For the first time, both the truck and the truck mixer body are powered by the traction battery, which means that expensive components in power electronics can be dispensed with.

The electrified Liebherr body of the new generation “05” offers further advantages: The compact electric drive for the mixing drum is flanged directly to the drum and its high efficiency ensures low power consumption to relieve the traction battery of the truck from Futuricum.

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