ANDRITZ SEPARATION offers the most comprehensive portfolio of separation equipment and solutions for a broad range of applications in various industries. As one of few suppliers, ANDRITZ SEPARATION also provides thermal treatment systems in addition to mechanical solid/liquid separation equipment. So the best solution for all individual customer requirements can be offered – whether it is related to a mining and minerals plant, a chemical or pharmaceutical production process, or a dewatering system for another industry or local authority.

Belt Filter Press

Power press – PP

Belt presses for cost-efficient sludge dewatering

The power press is a robust and efficient dewatering unit for a large number of sludges. Long filtration zones and high pressures ensure optimum dryness levels.

Types of power presses

  • PowerPress G: The economical solution for sludge dewatering in small sewage treatment plants
  • PowerPress E: Sludge dewatering in small to medium-sized sewage treatment plants
  • PowerPress S: The best technical solution for large municipal and industrial sewage treatment plants


  • Excellent price/performance ratio
  • Low energy consumption
  • Low polymer consumption
  • Can be used for a wide variety of sludges
  • Fully automatic operation without operator’s attention
  • Stainless steel design
  • Optimized dewatering zones
  • High dewatering pressures applied due to:
  • Small roll diameter
  • High belt tension

Features of the power press

  • Optimum pressure increase up to 1.2 bar by up to 11 S-rolls
  • Sturdy frame design in stainless steel (1.4301 or 1.4571)
  • Variable speed drive for the upper and lower belts
  • High-quality roll covers made of rubber or polyamide and roll bearings with double V-ring sealing
  • Belt cleaning with stainless steel spray pipes, optionally with internal cleaning brushes to keep the shower nozzles clear
  • Separate discharge of filtrate and belt wash water for wash water recycling