Abstract: A mixer/stirrer motor-reducer (e.g. as part of a mixer, stirrer or similar building machine), includes an electric motor (2) and a reducer (3) kinematically connected to the motor via a gear train (4, 6, 8) and with a relevant output shaft (9) intended for moving a mixing tank (10; 110). The motor-reducer (1) is provided with a box-shaped shell (15) made of insulating material. The shell (15) is open laterally, is able to include the casing (12) of the electric motor (2), is closable by a flange (19) and is made of electrically insulating material and is interposed between the motor (2) and the reducer (3).

Abstract: The invention refers to a motor-reducer to be used, in particular, for mixers, stirrers and similar building machines, comprising an electric motor (2) and e reducer (3) kinematically connected via a gear train (4, 6, 8) and with a relevant output shaft (9) intended for moving a mixing tank (10; 110); the motor-reducer (1) is provided with a box-shaped shell (15) made of insulating material, open laterally, able to include the casing (12) of the electric motor (2), closable by a flange (19) made of electrically insulating material and interposed between the motor (2) and the reducer (3). (FIG. 1).