Abstract: In order to further develop a disc cutter machine, in particular for cutting sugar beet, which is provided with a machine frame, a disc cutter having passages for the cut material, and blade receivers arranged in the region of the passages, in such manner that with the same disc cutter diameter a higher cutting output can be achieved, the blade receivers (18) are mounted on the flat upper surface (16) of the disc cutter (12) and the disc cutter is formed in the region of the blade receivers of radially extending and uniformly spaced inclined ribs (14).

Abstract: In order to provide a method and a disc cutter machine for carrying out the method with which the previously strenuous blade receiver exchange is simplified and facilitated, it is provided that the blade receiver (8) to be exchanged is tilted up by means of a tilting arrangement (19) with its end facing the outer side of the disc cutter, received by a guide (27) and drawn out substantially in the radial direction along the guide from the region of the disc cutter (6) and then the new blade receiver is inserted along the guide into the disc cutter.

Abstract: The cutting comprises a drive disc, over whose periphery detachable secured rods 12, preferably having a square cross-section, are distributed at equal spacings and are aligned parallel to the drum axis. Between each pair of adjacent rods a blade box 42 is inserted which bears all replaceable wearing parts 56, 74, 80, these being directed into the drum interior. In operation each blade box rests againt the rods, owing to plane surface contact when these rods have a polygonal or, preferably, square cross-section.