Liebherr and Designwerk have developed fully electric truck mixers with 10 and 12 m³ drums on a 5-axle chassis.
Liebherr says the ETM 1005 and 1205 truck mixers transport large quantities of concrete to the construction site quietly and reliably without exhaust emissions. Charging is normally only necessary at night due to the large accumulator capacities, the company adds.
According to Liebherr, the Futuricum chassis can cope with the weight of the concrete while energy recovery during braking of downhill driving further increases the range of the truck and reduces operating and maintenance costs.
Liebherr and ZF developed a drum drive consisting of a low-maintenance unit and efficient unit of electric motor and gearbox. The truck and the truck mixer body are powered jointly by the traction battery, which helps to remove the need for power electronics components.
The compact electric drive for the mixing drum is flanged directly to the drum and is expected to ensure that power consumption for relieving the traction battery of the Futuricum truck remains low.
Liebherr claims it also eliminates the need for hydraulic components such as hose connections and pumps.
The first operations are planned for our customers Holcim and KIBAG in Switzerland.
