Product Description:

The MST530C-0010-ST-N0CN-NNNN is a frame-integrated torque motor produced by Bosch Rexroth Indramat for the MST Synchronous Torque Motors series. It is intended for direct-drive rotary tables, winders, and gearless positioning axes where high static torque and smooth speed control are needed without mechanical transmissions. The stator is supplied as a jacketed ring that fits around the machine structure, while the rotor mounts on the application shaft to deliver continuous torque at low speed.

The laminated core gives the unit an outer diameter of 530 mm and an inner mounting diameter of 410 H7 mm, leaving adequate cross-section for process shafts or pipes. A theoretical air gap of 0.75 mm separates the rotor and stator, and a rotor-to-stator distance of 19 mm sets the active magnetic length to balance pull forces with magnetic loading. Heat is removed by surface cooling, and the stator body is wrapped in a cooling jacket for liquid circulation. Electrical leads exit through the larger cable end, whose outer diameter is 565 f7 mm, while the opposite end measures 562 f7 mm to keep both bearing seats concentric. The motor is supplied without an encoder, so a separate feedback device is required for position or speed monitoring. The electrical connection is routed through the end bell. The continuous output available at the shaft is 580 Nm when the windings draw a rated current of 15.0 A.

A winding loss of 1.30 kW must be removed by the coolant loop to keep temperatures within insulation limits while the motor develops a mechanical output of 6.10 kW at rated speed. Thermal equilibrium is reached after a 15.0 min time constant, so short overload intervals can be absorbed before the motor reaches steady-state temperature. These thermal and power values are useful when selecting the matching drive and sizing the cooling circuit for continuous-duty operation.