Sigma Filter



  • Fractioning, separating filter: reliable, self cleaning, continuous operation.
  • Feed inlet sprayed against a metallic wire, mounted on rotating drum and split in fine and coarse fraction.
  • Central feed inlet at low pressure (1 bar max).
  • Double sintered stainless steel wire available at different openings depending on the application and expected results.
  • Continuous wire back washing.
  • Process water filtration, filler and fine separation from fibers, sticky removal, clarified water filtration, effluent filtration.
  • Recovery of valuable fibers in process water.
  • Controlled max size of solid particles for fine filtration application.
  • Compact machine, complete stainless steel construction, almost free maintenance operation.


  • Fillers and fines separation from the fibers
  • Stickies removal
  • Filtration of waters coming from the water treatment plants, to remove the last suspended solids, thus allowing the re-use of the water in the producing processes
  • Cleaners rejects treatment for the fillers recovering
  • Filtering of the waters coming from the vacuum pumps
  • Treatment of the waters coming from the stock washing and filtering process.

wastewater filtrationOTHER APPLICATIONS:

 Treatment of waters coming from producing processes of:

  • Dairies;
  • Abattoirs;
  • Canning industry;
  • Oil industry;
  • Municipal and/or industrial wastewater treatment plants.
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