A grain cleaner does just that, it cleans grains. The main purpose of the machine is to remove dirt, dust and other similar debris from grains like wheat and rye. The machine works in a very simple yet efficient manner when operating. It consists of a cylinder that is fixed in a position where a rotor with steel beaters revolves. The grain is then thrown against the surface of the cylinder, which is either smooth or rough and by the force of friction, the grains are cleaned and polished. A smoother surface will have a milder action and a rougher surface will have a more intense effect.