Abstract: A laboratory mill for comminuting grist, is provided. A device housing has a grinder housing and/or a grinding vessel, and a grinding space therein. A grinder can be arranged in the grinding space, to comminute grist, and the grinder housing or the grinding vessel comprises a user access opening closeable by a grinder housing door or a safety cover having an open and a closed state. A user has access to the grinder through the user access opening, in the open state of the grinder housing door or of the safety cover. A grinder drive drives the grinder. The grinder housing door or the safety cover comprises a closure element, lockable in the closed state. The laboratory mill comprises a mechanical grinder drive locking mechanism.

Abstract: The invention relates to a laboratory mill (1) for comminuting grist, in particular configured as a cutting mill or cross beater mill, comprising a device housing (12) having a grinder housing (16), wherein the grinder housing (16) defines a grinding chamber (32) and has an axial end face (16a), a rotor-grinder in the grinding chamber (32) of the grinder housing (16), wherein the rotor-grinder (30) comprises a rotor (34), which defines a rotor axis (X), and at least one counter-element (36), wherein the grist is comminuted between the rotor (34) and the at least one counter-element (36) when the rotor (34) rotates, a grinder drive (2, 4) for driving the rotor (34) in the grinding chamber (32), a grinder housing door (18) for closing the grinder housing (16) at the axial end face (16a) wherein the at least one counter-element can be inserted axially into the grinder housing (36) when the grinder housing door (18) is open.