Abstract: In a comminution machine, which is particularly used in industry, with an emulsifier (3), a particularly simple structure with a single driving device for conveying, cutting and emulsifying the material to be chopped is guaranteed when, between a support body (32a) on a stator (32) of the emulsifier (3) and a fulling body (33a) on the corresponding rotor (33), there is a successively narrowing gap (36a) area in which the material to be chopped is exposed to a further constant fulling comminution under pressure. The rotor (33) is rotationally connected with the shaft (4) of the cutting and conveying device of the comminution device. On the rotor (33) a co-axial hub (33c) connected to the fulling body, is provided, with which hub the rotor (33) is fitted on the shaft (4).