excavator bat tery requirem

New research published by Danfoss shows that combining an electric motor with its Digital Displacement pump in an excavator is the most efficient way to turn battery energy into hydraulic work. The combination can reduce the energy required, and therefore the battery size, for a typical day’s work by 24.8%.

The analysis, first presented in 2022 at the prestigious International Fluid Power Conference (IFK) in Aachen, Germany, paves the way to smaller batteries and longer duty cycles for hard to decarbonise off-highway machines.

The study was supported by the UK Advanced Propulsion Centre, which developed a simulation model of a 16-ton tracked excavator and calculated the energy