High separating capacity and accuracy with stainless steel sheet floor and zig zag. Fine adjustment of stroke, micro adjustment of table inclination whilst running. Low maintenance requirement due to high wear resistant stainless steel sheet floor & zig zag, synthetic rollers, and ball bearing crank drive. Low power consumption. The material is uniformly fed into separating chambers. Due to the movement of the inclined table and special zig zag design of impact walls the product is constantly accelerated in opposite directions the specifically heavy grains travel downwards and the Light grains travel upwards the separating chambers. The two fractions are discharged through collecting chutes.