Mitsubishi MR-J3BRKS1-79-2M Hollow Shaft Spindle Motor for SJ-V Series

The Mitsubishi MR-J3BRKS1-79-2M (MR-J3BRKS1-79-2M) is a hollow shaft spindle motor engineered for high-performance machine tool spindles and industrial motion control systems within the Mitsubishi Electric SJ-V series. This unit features an integrated type 2 absolute feedback encoder and high-speed bearings to ensure precise speed regulation and reliable positioning feedback in continuous machining operations. It operates on a 200 VAC supply voltage class and delivers a rated output of 15 kW, providing a rated torque of 70 Nm at a rated rotational speed of 1,500 rpm. Constructed for demanding industrial environments, the spindle motor is housed in a 250 x 250 mm flange frame configured for foot mounting and offers an IP44 degree of protection against particulate and moisture ingress. It is rated for operation across an ambient operating temperature range of 0 to +40 degrees Celsius. Suitable for high-precision CNC machine tools, milling equipment, and related drive assemblies, this motor provides steady dynamic torque, smooth low-speed performance, and dependable spindle drive integration across factory automation installations.