Abstract: A crushing device which is suitable, in particular, for chips, including a hopper for filling the chips therein, a tearing arm serving as a coarse breaking mechanism, and a fine breaking mechanism. The fine breaking mechanism has a grinding mechanism with at least one centrally arranged, rotating blade head, which operatively interacts with the stationary teeth arranged around the periphery of the grinding mechanism. The stationary teeth are disposed on at least two support segments, and the two segments are movably arranged in such a way that if a coarse piece enters the crushing device, the segments can be separated from the blade head so that the coarse piece can then be discharged.

Abstract: A crushing device which is suitable, in particular, for chips, including a hopper for filling the chips therein, a tearing arm serving as a coarse breaking mechanism, and a fine breaking mechanism. The fine breaking mechanism has a grinding mechanism with at least one centrally arranged, rotating blade head, which operatively interacts with the stationary teeth arranged around the periphery of the grinding mechanism. The stationary teeth are disposed on at least two support segments, and the two segments are movably arranged in such a way that if a coarse piece enters the crushing device, the segments can be separated from the blade head so that the coarse piece can then be discharged.

Abstract: A centrifuge for separating liquids and solids from various materials, including a rotatably driven receiving drum with a raisable and lowerable lift bottom arranged in a liquid-tight basin, and raisable and lowerable material guide surfaces arranged to be raised or lowered independently of the lift bottom.