Abstract: The invention relates to a disc grinding device (2) with a stator disc (3) and a rotor disc (4) which are disposed coaxially with respect to a common disc axis and have at least approximately the same diameter, and the mutually facing sides of which correspondingly contain an annular toothed stator surface and an annular toothed rotor surface, wherein the annular toothed stator surface contains at least one stator ring region with stator teeth, which are spaced apart by stator grooves in the peripheral direction, and the annular toothed rotor surface contains at least one rotor ring region with rotor teeth, which are spaced apart by rotor grooves in the peripheral direction, wherein the toothed rotor surfaces and the toothed stator surfaces define an annular grinding gap and are disposed and formed in such a way that the grinding gap becomes narrower radially in the direction from the disc axis towards the edge of the stator disc (3) and rotor disc (4), wherein the rotor teeth and rotor grooves extend in an i

Abstract: The invention relates to an agitator mill which has both a static separating arrangement and a dynamic separating arrangement on the outlet side of the grinding chamber. These two separating arrangements complement one another in an ideal manner, since in the starting phase in particular the dynamic separating arrangement ensures a trouble-free start, whilst during operation the static separating arrangement enlarges the total effective opening in a desired manner and thus leads to a low pressure in the mill. Thus the agitator mill according to the invention is distinguished by a high level of reliability, low maintenance costs, low wear and universal applicability.