Pre cleaning process of seeds & grains is first operation to remove large & small impurities from farm produce. Pre cleaning with out aspiration system removes impurities such as stones, leaves, sticks, sand, fine dust etc. If aspiration is used it sucks away light impurities such as leaves, small sticks, fine dust etc. With Pre Cleaner materials can be cleaned at high capacity as it is scalping or rough cleaning operation, widely used before silo storage.