It is used for separation of foreign substances like hay, spike, soil which are have different dimensions compared to that of grains. The machine, totally steel constructed, is equipped with two sieves with which vibration and inclination can be adjusted.  Integrated inspection window. Rubber balls are used to prevent congestion of sieves. Inclination and vibration intense of the sieves can be adjusted counter weights. As vibration motor is directly installed to the machine, items causing problems such as belt, pulley, bearing and hanging rods are not used.