The device (10) has a frame (12) partially arranged in a housing, and a motor (14) supported by the frame. A mixing arm (16) is supported by the frame. Two bearings (30) are placed inside the housing, where each bearing is clamped between upper and lower elastic pretensioned damping elements (32, 34). The lower damping element (34) is supported on an upwardly directed abutment surface, and the upper damping element (32) is engaged by a downwardly directed abutment surface of the housing, where the upwardly directed abutment surface is formed on a stand foot.
