Abstract: A conveying screw for a cutting and separating device, including a screw shaft having at least one helical screw flight integrally moulded thereon, which, in an installed position, has a front flank for transporting a foodstuff by pushing, a rear flank arranged on the opposite side, and, at its distal end between the front flank and the rear flank, a cylindrical portion, which is formed in the transition region to the front flank of the screw flight with a sharpened cutting edge, the sharpened cutting edge having a positive rake angle (?) arranged between the front flank and a processing plane oriented at right angles to the screw shaft. The cutting performance of the cutting and separating device are significantly improved as the sharpened cutting edge is formed from a groove made on a distal end of the front flank, the outer contour of which groove cuts into the cylindrical portion.

Abstract: A mincing drum for a cutting and separating device, at the first end section of which there is an inlet opening and at the second end section of which there is an outlet opening, a plurality of cutting openings being arranged in a pressure housing section of the mincing drum and passing continuously through the pressure housing section from an inner wall to an outer wall, each cutting opening having, on the inner wall, a cutting opening edge facing the outlet opening and a drawing-in opening edge facing the inlet opening. The cutting performance of the cutting and separating device and the quality of the desired food component is significantly improved as a feed channel which is recessed relative to the inner wall is situated between the cutting opening edge and the drawing-in opening edge.

Abstract: A shredding drum for a cutting and separating device, including a pressure housing, on a first end portion of which an inlet opening is formed and on a second end portion of which an outlet opening is formed, wherein a multiplicity of cutting openings are arranged in a pressure housing portion of the pressure housing and pass right through the pressure housing portion from an inner wall to an outer wall, wherein the cutting openings are oriented with hole axes inclined at an angle (?O1, ?O2) in relation to the inner wall. The underlying object was therefore to improve a shredding drum in such a way that the cutting performance of the cutting and separating device and the quality of the desired food ingredient are significantly improved. The object is achieved in that the inclination of the hole axes being chosen such that they are facing the inlet opening on the inner wall.