Mitsubishi MR-J3BRKS1-79-25M Hollow Shaft Spindle Motor for SJ-V Series

The Mitsubishi MR-J3BRKS1-79-25M (MR-J3BRKS1-79-25M) is a high-performance hollow shaft spindle motor engineered for Mitsubishi Electric SJ-V series drive systems and industrial machinery. Designed with an integrated type 2 absolute feedback encoder and high-speed bearing construction, this AC spindle motor provides precise rotational control, feedback positioning, and dynamic drive performance in heavy-duty automated manufacturing environments. Operating on a 200 V AC supply voltage class, the unit delivers a rated output of 15 kW with a rated torque of 70 Nm at a rated rotational speed of 1,500 rpm. The motor is built in an IP44 protection-rated housing to guard against dust and splashing liquids, and it features standard 250 x 250 mm flange mounting dimensions for secure machine integration. It is rated for continuous, reliable operation within an ambient temperature range of 0 to +40 degrees Celsius, making it suitable for CNC machine tools, machining centers, and high-precision motion applications.