ASH servo-hydraulics

Drive stops as soon as the machine stops running

The ARBURG servo-hydraulic system (ASH) permits particularly energy-efficient and low-emission operation of hydraulic injection moulding machines. With a speed-controlled, water-cooled servo motor, the drive system adjusts continuously to the actual power requirement.

The special feature here: when the machine stops, the pump drive also stops. Thus, the servo hydraulics no longer cause no-load losses. This saves up to 50 % of energy, particularly in processes with long cooling periods. At the same time, this also reduces the cooling requirement and noise level of the machine significantly.


  • No no-load losses, less noise: when the machine is not performing any movements, the speed-regulated pump drive stops
  • Up to 50% less energy required compared to hydraulic standard machines with two pumps
  • Ideal for air-conditioned production environments: reduced waste heat and cooling requirement
  • Available for hydraulic ALLROUNDERs S