Osaw Agro Industries offers universal seed cleaner and grading machinery, Model Universal Cleaner-30. The machine is suitable for efficient cleaning and fine cleaning of all cereal grains, malting barley, coffee seed and seeds of all crops such as wheat, paddy, barely, maize, millets, sunflower, soyabean, oil seeds and for rice and pulse milling plants. Same machine is used as pre-cleaner as well as fine cleaner after changing the sieve pattern. Operation: Seeds/grain are fed into a feed hopper where they are evenly distributed and drop through a controlled gate on three sieve layers. Before falling on each screen layer, grains are subjected to primary aspiration, which drains off chaff, straw, dust, deceased grains, etc. The material is then passed through sieve sections for separation according to width and thickness. Sieve perforations are kept cleaned by specially designed rubber balls. After passing through screens, cleaned material again passes through air sifter and aspiration, where remaining light particles are sucked off by a strong upward draught of air. Final product and impurities are collected separately through discharge chutes.