Material is fed through the hopper in front of a hydraulically operated drawer, which pushes the material load-controlled onto the turning rotor. The material is shredded between the rotor knives and a fixed counterknife. The drawer has stripping bars that prevent material from entering between the drawer and machine housing. The screen hole with different perforation diameters determines the size of clippings or shavings. Produced shavings can be removed from the machine with the suction device or spiral conveyor. Once the material is shredded, the machine will automatically shut off.