"Cleaning" means the phase or phases of the post-harvest system during which the impurities mixed with the grain mass are eliminated. This operation, which may be accompanied by a sorting of the products according to quality, is indispensable before storage, marketing or further processing of the products.

These machines, whose large outputs can be as much as 20 tonnes an hour, are certainly the most effective instruments for cleaning grain, and all storage centres should be equipped with them.

Cleaner-separators are motor-driven and consist mainly of a reception hopper, a fan and set of vibrating sieves; they clean grain by repeated suction of the lightest impurities, followed by siftings of the grain.

The set of sieves, composed of a coarse sieve (clodder) for the bulkiest impurities and a fine sieve (sifter) for the finest impurities, must be chosen with care, taking account of the shape and size of the grains to be cleaned.

The usual recommendation is a set of sieves with oblong perforations for long grains, and, for round grains, a clodder with round perforations and a sifter with oblong perforations.

For optimal use of the machine, it is also important to take care in making the various adjustments (to the flow of grain, the suction, and possibly to the speed of vibration of the sieves).

Our screen cleaners provide excellent efficiency and purity in the cleaning of all kinds of crops such as garden seeds, grass seeds, flower seeds, corn, leguminous seeds etc. Our Cleaner also offers evenly distributed air flow, the separation is more easily controlled and more accurate.