Screw compactor

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The screw compactor with shaft PTL model is a machine for compaction and washing of the screenings. The machine is mainly composed of a robust stainless steel cylindrical hose with a shafted spiral, which conveys the grid toward a washing chamber at high pressure and then pushes the material towards the discharge pipe. The stage of compaction is provided with washing nozzles which are able to break down the organic substances contained in the residues of screening. These liquids united those coming from the exhaust pipe are then downloaded by a drainage at the bottom of the machine.
The advantages of this compactor are the high degree of compaction and the reduced overall dimensions. Furthermore it is possible to equip the machine with appropriate lot in continuous for the collection of the grating to minimize the contact with the operator and the environmental impact. As the whole range Seft is possible to customize the machine with accessories and adapting the compactor to meet the needs of the customer.


  • Reduce the volume of the grid over 60%
  • Small footprint
  • Lack of parts with high maintenance
  • Reduced running costs
  • Effective cleaning system