Product Description:

The MST360D-0012-FC-N0RN-NNNN torque motor is manufactured by Bosch Rexroth Indramat for its MST Synchronous Torque Motors series. Designed as a permanent-magnet, low-speed direct drive, it mounts inside machine frames to rotate tables, winders, or extruder screws without intermediate gearing. In automation cells, it supplies high continuous torque at limited speed, enabling accurate positioning and quick reversal while keeping maintenance low because motion is produced without mechanical transmission elements.

At the nominal operating point, the stator draws 15.7 A, producing 6.3 kW of mechanical power. The corresponding conductor area for the power leads is 2.5 mm², which helps limit heating and voltage drop inside the housing. During startup or emergency acceleration, the controller may supply up to 39.8 A, and the motor can reach a peak torque of 1150 Nm while remaining within its thermal envelope. Electrical commutation keeps rotor velocity below a maximum electrical speed of 190 rpm, so encoder resolution and winding stress stay within design limits. The radial outlet on the larger outside-diameter side carries both power and feedback connectors to simplify cable routing.

At continuous load, the rotor stabilizes at a rated speed of 115 rpm, generating a steady 525 Nm without exceeding the standstill current limit of 19.2 A or the winding resistance of 5.4 Ω. The torque constant of 33.33 Nm/A supports closed-loop control by allowing the drive to calculate output torque directly from commanded phase current. Magnetic energy is stored in a coil inductance of 46.2 mH, and this value filters current ripple while helping protect the inverter against rapid step changes. With a back-EMF constant of 2.043 V per min⁻¹, the motor couples speed to voltage so the drive can apply field-oriented regulation while keeping copper losses and thermal drift within the 20 °C reference window.