Product Description:

The MST210D-0070-FT-N0RN-NNNN is a frame-mounted stator from Bosch Rexroth Indramat’s MST Synchronous Torque Motors series. This torque-optimized motor section couples directly to large rotary tables or cylinder screws, providing high holding and driving capability without the backlash of gearboxes. In factory automation, it supplies constant rotary motion or positioning force at moderate speed, helping extruders, printing drums, and assembly stations maintain repeatable angular performance under continuous duty.

At its continuous operating point, the stator reaches a rated speed of 700 rpm while delivering a shaft torque of 150.0 Nm. To sustain that output, it draws a rated phase current of 32.0 A and converts electrical energy into mechanical work at 11.00 kW. The electromagnetic design yields a torque constant of 4.70 Nm/A, meaning each additional ampere produces nearly five newton-meters of torque. Electrical dynamics are governed by a 6.9 mH winding inductance and a 1.4 Ω phase resistance, which influence drive controller current loops and help limit ripple during low-speed operation. Thermal encapsulation around the copper windings promotes uniform heat transfer to the housing so the rated output can be maintained continuously.

For transient moves, the winding can accept up to 120.0 A, enabling a peak torque of 300.0 Nm before magnetic saturation occurs. The liquid-cooling jacket draws away the resulting heat with a flow of 6.0 L/min, and both fluid ports and the power connector share the radial outlet on the larger-diameter side. Field wiring is completed with conductors sized at 6.0 mm². Because no motor encoder is installed, position feedback must be supplied by an external sensor when the application requires it. The stator’s 13.8 kg mass also helps slow temperature rise during overload intervals.