Fluidized base extractor

Fluidized base extractor ESTEVE

ESTEVE’s fluidised base extractor facilitates the flow of fluidisable powder materials from storage silos or bins.
It is suitable for handling type C powders in the Geldart classification and optimal for low moisture content powders such as Epoxy powders.


  • Provides high extraction flowrates up to 400 t/hour;
  • The material is put into suspension which avoids formation of bridges or fissure lines;
  • Requires no mechanical parts inside the silo.

Operating principle:

Air is injected into the porous base of the lower cone by a compressor. A low pressure annular air supply fan injects air between the two walls: surrounding air rises through the solid particles and the aerated powder then flows like a liquid.

Diameter: 600 to 1800

Construction: stainless steel or mild steel painted