Data Sheet

Technical Specifications

  • Frame in AISI 304/316 stainless steel, depending on requirements
  • Shaftless spiral in high tensile carbon steel or AISI 304/316, depending on requirements
  • Installation from 3° to 25°
  • High molecular density polyethylene liner or stainless steel bars
  • Flow rate up to 8 m³/h
  • Screw diameter up to 360 mm
  • Depending on the application, reduction of solids volume of up to 60%
  • A complete range of accessories (tanks, discharge ports, supports, solids washing systems, vertical drain, bagging system at the outlet, etc.) makes it possible to customize the machine for any type of installation


  • Municipal wastewater treatment plants for compaction of screenings after coarse and/or fine screening.



  • Industrial wastewater treatment plants for compaction of screenings after coarse and/or fine screening
  • Paper industry
  • Tanneries
  • Chemicals industry
  • Slaughterhouses
  • Cannery industry
  • Breweries
  • Other industries

Compatible with all solid – liquid separation screens

  • No intermediate hangers or end bearings
  • No mechanical components in contact with the transported product
  • Reduced rotation speed
  • No risk of jamming and/or clogging, even when handling fibrous products
  • Fully enclosed machine to eliminate all possible pollution hazards
  • Horizontal or vertical discharge
  • Possibility of discharging materials into plastic bags


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Spare Parts

Click below for original spare parts for your machines!

Description and operation

Definitive Ecology’s compactor machine is composed of a U-shaped trough made of stainless steel equipped with a shaftless spiral. The machine features three sections: feed, transport and compaction. Excess water is removed from the incoming product by the drainage screen, which is located in the feeding zone. The product transported by the screw reaches the compaction zone screen basket and is then discharged from the outlet, which is equipped with a cover with contrast spring. The discharged liquid is transferred to the outlet together with the liquid drained at the inlet. The machine, which is designed for intermittent duty, can be used in all applications calling for compaction/dewatering of solids.

Models available

  • SDS = shaftless screw compactor