Specific dust collectors for the filtration of the dust released during the pneumatic loading of the silos, designed to be installed on the top of the silos, are essentially composed of a cylindrical body containing the filtering media which, depending on the version, can be cartridges or sleeves, and an upper plenum containing the cleaning system, exclusively with counter-current compressed air, consisting of a 6" bag (PED certified) and a series of 1" full-immersion valves connected to the respective firing lances; a microprocessor control unit. Equipped with a differential pressure switch with continuous display of the ΔP it manages the cleaning times and cycles. The exhaust of the filtered air, diameter 180 mm, is designed to be ducted with the relative P.A. or connected to a possible aspirator to create the depression in the silos (optional components available on request according to the needs). The upper plenum is equipped with a door with assisted opening by means of gas springs, to facilitate inspection and maintenance operations; on the cylindrical body there is a handle extended for the whole circumference and on the base there is a connection flange to the silos or to a possible connection element (supplied as an option on request). The filter head, designed for continuous exposure to atmospheric agents, is made of pickled Fe 360 sheet, welded and treated with a phosphodegreasing process and epoxy powder painting treated at 180°C.