The Decofilter can operate either in negative or positive pressure. The air loaded with particles and dust enters the dust collector through either an air entrance in the hopper or on a vertical wall with a deflector plate. Gravity projects the heavier particles into the lower part of the hopper where they are continuously collected by a pneumatic or mechanical system. The finer dust is captured upward in the filtering section using filter bags. The clean air is returned to the plant or to the atmosphere.

The filter bags laden with fine particles are cleaned continuously with an air-pulse jet system controlled by a sequential timer.
The design of the Decofilter is based on the speed at which the treated particles rise in order to reduce to a minimum the dust load on the cartridges during their operation.

The Decofilter is especially useful for abrasive particles or dust.

Rodrigue Métal has developed a whole range of remarkably efficient Decofilters based on research and development as well as on our numerous accomplishments.


  • Filtration of all types of dry or damp particles in low or high concentrations
  • Abrasive particles


  • Type of product to be filtered
    • Concentration
    • Grain size
  • Air volume
  • Gas temperature
  • Gas humidity
  • Corrosive agents


  • Mild steel
  • Wear-resistant steel
  • Stainless steel

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