Laboratory mill

A laboratory mill for comminuting grist, and configured as a cutting mill or cross beater mill, comprising

• a device housing having a grinder housing, wherein the grinder housing defines a grinding chamber and has an axial end face,
• a rotor-grinder in the grinding chamber of the grinder housing, wherein the rotor-grinder comprises a rotor, which defines a rotor axis, and at least one counter-element, wherein the grist is comminuted between the rotor and the at least one counter-element when the rotor rotates,
• a grinder drive for driving the rotor in the grinding chamber,
• a grinder housing door for closing the grinder housing at the axial end face,
• wherein the grinding chamber is configured in the form of a substantially cylindrical cavity in the grinder housing and transitions downwards into a grist outlet channel, wherein the grinding chamber and the grist outlet channel are separated by a sieve plate, through which comminuted grist can trickle out of the grinding chamber, downwards into the grist outlet channel and into a grist collecting container, and
• wherein at least one or more protruding taper pins are fastened to the grinder housing door, which are pivoted in, under the sieve plate, when the grinder housing door is closed, and support said sieve plate at a bottom when the grinder housing door is closed.