The HPS press was developed for the solidliquid separation of biological substances. This machine is the effective solution for dewatering of communal and industrial sludge. The solid content of a suspension may be between 2 and 10%. For several performance requirements there are several machine sizes provided.


  • High degree of dewatering
  • Low disposal and drying costs
  • Reliable process and control system
  • Self-optimising process operation
  • Continuous operation without supervision
  • Minimal labour costs
  • Minimal maintenance costs

The press is designed as a rotating cylinder-piston system with hydraulic drive. Between bottoms of cylinder and piston flexible drainage elements are fixed that lets the filtrate off the press interior. The press process is composed of the steps sludge feeding, dewatering by cylic press and bulking loops and discharge of the filter cake. A complete press process lasts beetween 70–120 minutes depending on the sludge’s capability for dewatering.


Throughput kg DR/h*: 200–400

Filter area: 37

Empty weight in kg: 18’000

Filled weight in kg: 24’000

Dimensions (L X B x H): 7’500 x 3’180 x 2’835

Power consumption kW*: 13