Product Description:

Bosch Rexroth Indramat produces the MSM031C-0300-NN-M0-CH0 as part of the MSM IndraDyn S Synchronous Motors series. The motor is a compact, low-inertia rotary actuator intended for electronically commutated drive systems that require quick positioning and repeatable speed control. When paired with a compatible IndraDrive inverter, it provides regulated torque for pick-and-place heads, indexing tables, and miniature conveyors used in electronics, pharmaceutical, and consumer goods production lines. It is also suitable where installation space is limited and precise repeatability is needed across long production runs.

At standstill, the rotor can deliver a continuous torque of 1.30 Nm, allowing sustained low-speed holding or creep feeds without exceeding the thermal limit. Thermal energy leaves the frame through natural convection, so the application does not require added fans or coolant plumbing. Power, feedback, and brake lines exit through a cable tail, which simplifies routing on moving axes and reduces the need for a motor-mounted connector. Position recovery after power loss is provided by a multiturn absolute encoder that reports both angle and revolution count to the controller. Winding code 0300 indicates electrical values suited to low-voltage bus systems, helping current rise quickly while keeping the drive transistors within their operating range.

The housing uses motor length C with frame size 031, giving an overall length of about 104 mm and a 55 mm square flange. Because the unit is supplied without a holding brake, any vertical load must be secured by an external mechanism when power is removed. Torque is transferred through a plain shaft, and there is no shaft seal, so the mounting location should remain dry or use external sealing where fluids are present. This shaft style works well with compact couplings and supports quick response on light-duty axes that cycle repeatedly through short moves.