Abstract: The present invention relates to a separator commonly used in flour mills. The grain is crushed by rollers and fed to the present apparatus for separation of a coarse product from a fine product. A drum section has stationary hammers extending from one end and rotating hammer extending from the other end. The rotating hammers are attached to a plate turned by a motor with the rotating hammers moving through the stationary hammers. This causes the crushed grain to be sifted through a perforated screen with the fine product feeding through an outlet for the fine product. The coarse product accumulates and spills over an upper edge of the perforated screen to feed through an outlet for the coarse product. The screen or its position, may be changed to vary the discharge from the present apparatus.