The SRL Rotational Separator is used to eliminate foreign objects of various dimensions from a flow of granular product. The machine is made up of a freely-oscillating metallic bin joined to the base structure by flexible suspensions. Two dismountable and easily inspected wooden sifters are fixed inside the bin: the upper one separates the product from the larger impurities and the lower one eliminates the smaller screenings. The separator is suitable for all product cleaning through the simple changing of the sifting elements. Generally the machine is coupled to an aspirator to achieve further elimination of the lighter particles present in the product.