The Secofilter can operate under both positive and negative pressure. The particle-laden air enters the dust filter through a tangent inlet; the particles are centrifuged down to the cone section 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 particle-laden filter bags are cleaned continuously with a mechanical cleaning system activated by a gear motor that operates for a determined period when the fan stops.
The conception of the Secofilter reduces the upkeep of filter bags, since the cyclonic pre-separator reduces to a minimum the dust load on the filter bags during the operations.

Rodrigue Métal has developed a whole range of remarkably efficient Secofilters at a minimal cost.

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