Product Description:

The MST360E-0018-FH-N0KR-NNNN is a frameless synchronous torque motor created by Bosch Rexroth Indramat for the MST Synchronous Torque Motors series. By delivering high continuous torque at very low rotational speed, the unit can drive turntables, extruder screws, or cylindrical presses without a gearbox. Direct coupling limits compliance and improves positioning accuracy, making the motor suitable for closed-loop industrial automation tasks that rely on stiff mechanical links.

The motor supplies a rated torque of 875 Nm at a rated speed of 180 rpm, producing a mechanical output of 16.5 kW. For short load peaks, the shaft can withstand up to 1900 Nm. A torque constant of 20.80 Nm/A ties the electromagnetic output directly to the phase current, while the back EMF has a voltage constant of 1.890 V per min⁻¹. The outside jacket diameter measures 385 mm, and the stator terminals accept power leads with a 10.0 mm² cross-section. Winding resistance is 1.3 Ω, a value that influences copper loss during prolonged duty. The outer diameter and terminal size must also be considered when the motor is integrated into the machine frame and power wiring.

Heat generated in the copper is extracted through water cooling; the stainless-steel circuit sits within a 210 mm long cooling jacket and carries liquid along the stator core. The motor has an IP00 rating, so the assembly must be placed inside a protected machine enclosure. Continuous operation draws a phase current of 42 A, while transient acceleration demands can reach 141 A. A winding inductance of 21 mH moderates current ripple, allowing the converter to maintain vector control even at low electrical frequency. Because the motor uses water cooling and has an open design, the surrounding machine enclosure must provide both external protection and proper coolant routing.