Data Sheet

Technical Specifications

  • Frame in AISI 304/316 stainless steel, depending on requirements
  • Shaftless spiral in high tensile carbon steel, AISI 304/316, depending on requirements
  • Tank structure designed to prevent clogging. The base of the tank is equipped with wear bars made of stainless steel on which the screw rests. The construction system allows for easy replacement
  • Inlet flow rate: 130 m³/h max (36 l/sec.)
  • Separation: >= 90% of particles sized >= 0.2 mm (at nominal flow rate)
  • Pressure reducer at inlet
  •  Grit discharge chute
  •  Screw conveyor to transport the grit to the discharge port
  •  Screw speed variator
  •  Steel supporting frame
  •  Extracted grit bagging unit: in single bags or continuous liner
  • Municipal treatment plants for separation and dewatering of grit deriving from the wastewater treatment process
  • Industrial plants with the requirement to separate and/or dewater grit
  • Shaftless spiral
  •  No supports
  •  Reduced rotation speed
  •  Reduced installation costs


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Spare Parts

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Description and operation

In Definitive Ecology’s grit treatment system the grit slurry is fed through an inlet flange into a tank in which the solid particles are settled. Floating particulate is removed also thanks to special flow deflectors and the layout of the inlet and discharge flanges. The grit is lifted to the discharge port by a screw with reduced rotation speed. The grit is dewatered while it is being transferred to the discharge port.

Models available

  • SC = grit classifier