Product Description:

The MST130C-0200-FT-N0CN-NNNN is a synchronous torque motor from the MST Synchronous Torque Motors series built by Bosch Rexroth Indramat. This frameless motor is intended for direct-drive rotary tables, printing cylinders, and similar axes where high torque is needed without mechanical gear reduction. By integrating directly with the load, the motor removes backlash and improves positioning accuracy in industrial automation systems. Because it is built for direct integration, the machine structure supplies the surrounding support that a housed motor would normally provide.

Under continuous operation, the unit produces a rated torque of 25.0 Nm at a rated speed of 2,000 rpm, which corresponds to a mechanical output of 5.24 kW. The windings can draw up to 38.0 A during load peaks, and electronic commutation keeps the rotor stable up to a maximum electrical speed of 3,850 rpm. Heat is removed by water cooling, and the stator channels require a coolant flow of 1.4 l/min to maintain temperature. Ten pole pairs create a dense magnetic field that supports strong torque production at low rotational speeds. An axial cable outlet with the same outer diameter on both ends simplifies routing through machine frames, and thermal encapsulation helps the stator resist vibration and moisture.

The motor can hold position without rotation with a standstill torque of 27 Nm, and each ampere delivered by the inverter produces torque according to a constant of 1.65 Nm/A. Electrical response is affected by a winding inductance of 6.8 mH and a resistance of 1.68 Ω at 20 °C, which influence current rise and copper losses. A back-EMF constant of 0.071 V per rpm supports speed-related feedback in the drive. The winding reaches steady-state temperature after a thermal time constant of 2.0 min, so the cooling circuit must react quickly when load demand changes. This short thermal response is useful in applications with repeated speed changes and intermittent torque peaks.