Product Description:

The MST360D-0018-FT-N0CN-NNNN torque motor is built by Bosch Rexroth Indramat and belongs to the MST Synchronous Torque Motors series. Designed for direct-drive rotary stages in industrial automation, it provides high torque without intermediate gear sets. The stator-side cable exit on the larger diameter keeps power and feedback lines stationary, and the unit relies on liquid cooling to stabilize temperature. That arrangement reduces cable movement and avoids routing conductors through the rotating section. Thermal encapsulation surrounds the windings, improving vibration resistance and channeling heat toward the coolant jacket.

This motor delivers a continuous output of 525.0 Nm at a rated speed of 180 rpm, producing 9.90 kW of mechanical power while drawing a steady 28.0 A. This output level suits low-speed axes that need strong rotary force at the load. A torque constant of 18.80 Nm/A links phase current directly to shaft torque, simplifying current-loop response in the drive controller. The voltage constant is 1.720 V per rpm, which indicates back EMF at operating speed and helps with DC bus sizing. A winding inductivity of 15.5 mH and a resistance of 1.9 Ω at 20 °C influence electrical time constants and copper losses. Power conductors require a 4.0 mm² copper cross section to satisfy thermal and voltage-drop limits. Rated performance is maintained when coolant flow reaches 6.0 l/min, helping keep the stator below its thermal ceiling.

For intermittent peaks, the drive can supply up to 1,150.0 Nm while the rotor accelerates toward a maximum speed of 300 rpm. Transient events may demand as much as 100.0 A, so the drive electronics and cabling must tolerate that surge. Because the cable exit is on the stator circumference, power and feedback lines remain stationary during rotation. Thermal encapsulation continues to transfer heat into the jacket during rapid torque changes.