It is a device to enrich various minerals like carbon, coke, etc. in three compartments. Equipped with three pistons, with cross sectional dimensions 200×275 mm, drived by an eccentric crank shaft on three water basins and enrich the material through a screen deck The pulse rate infinitely variable from 0 to 300 rpm by an electronic motor speed controller, Provided with five square opening wowen wire mesh stainless steel sieves with sizes 1 mm, 2 mm, 3 mm, 4 mm, 5 mm Nominal capacity up to 150 kg/h (depending on the type and size of material). Driven by a 1 hp, 1400rpm, 380 V, 3 p, 50 Hz electrical motor and gearbox drive.