Energy transfer without losses
The full electrification of the machines, i.e. both the supply of energy from the overhead line and the transfer of energy, are carried out electrically. This provides further benefits. In conventional, hydraulic systems, frictional resistance and heat generation cause great losses, particularly if hoses are long. Thus, the electrical transfer of energy increases the efficiency of the entire system.
Linear movements will continue to be powered hydraulically. Hydraulic power packs, which are positioned close to the work units, shorten the length of the hydraulic hoses, which reduces losses significantly.
For the first time, the machine’s drive unit is powered electrically. Compared to the hydraulic drive, the new electrical axle drives considerably improve power transmission, reducing the energy required.
Also for the first time, the vibration shafts of the tamping units on the Unimat 09-4x4/4S E³ are powered electrically. This allows for faster response characteristic, more accurate unit activation, reduced noise levels during operation and reduced power demand.