Cleaning sieve is used for removal of light and heavier impurities from rapeseeds. This is important step in pressing section for removal of fines, soil to minimize wear and tear of downward equipment using simple vibratory screens with aspiration. Cleaning is done in the multi deck seed cleaner. The cleaning sieve is composed of various sizes screen designed to segregate the different fractions. The aspiration system along with cleaning sieve is used to remove light particles and loose hulls. The light material is then separated from air in cyclone. The cleaned seeds are then sent to de-stoners for further processing.