Abstract: The invention relates to a rotor shredder, comprising a cutting system frame, made of two lateral walls, which are connected to each other via two end walls in which at least one cutting shaft is rotatably supported, wherein the end walls (12) of the cutting system frame (1) have at least one substantially U-shaped recess (13), receiving the bearings (22) of the at least one cutting shaft (2), wherein the bearings (22) are configured such that they have a substantially U-shaped outer contour, which corresponds to the U-shaped recess (13) of the respectively associated end wall (12).

Abstract: A coarse material comminution machine 1 comprises a rotor 2 fitted with blades 4 and a stator body 3 located on the stator side with at least one blade 5 adjustable by means of a control device 11 in the direction towards the rotor 2 and in the direction away from the rotor 2. The control device has an adjusting slide 12 that is movable relative to the rotor 2 as well as an activating device 13 for the movement of the adjusting slide 12 in the direction towards the rotor 2 and in the direction away from the rotor 2. The blade 5 is kinetically coupled to a movement of the adjusting slide 12. The blade 5 is connected to the adjusting slide 12 by one or several coupling members 14 connectible to the adjusting slide 11 and the blade 5 in form-fitting and detachable fashion.