Product Description:

The MST530E-0010-FH-N0KR-NNNN is a synchronous torque motor in the MST Synchronous Torque Motors series produced by Bosch Rexroth Indramat. It serves as a direct-drive prime mover for rotary tables, extruders, and winders where high continuous torque at very low shaft speed is essential. By delivering rotation directly to the load, this design eliminates mechanical gearboxes, reduces maintenance, and enhances positional accuracy in demanding industrial automation lines.

During sustained operation, the motor can generate a nominal torque of 2100 Nm, giving heavy work-holding fixtures sufficient drive force without a gearbox. At its rated speed of 90 rpm, this torque equates to a mechanical output of 19.8 kW, matching processes that prioritize torque density over shaft speed. Supplying this load requires a continuous phase current of 64 A from the inverter, and the drive must energize the motor from a DC link stabilized at 540 V DC. Heat released by copper losses is removed through water cooling that circulates around the integrated aluminum jacket, and the 210 mm shell length keeps the heat exchanger compact. All power leads exit on the right-hand side through the terminal box, simplifying busbar layouts inside multi-axis cabinets.

Transient motion such as rapid indexing is covered by a peak torque capacity of 4700 Nm and a corresponding overspeed limit of 200 rpm. The rotor’s moment of inertia of 1.92 kg·m² smooths velocity changes, reducing torsional ripple on large-diameter tooling. An outer jacket diameter of 565 mm provides a broad mounting flange that distributes the load into the machine frame while leaving room for the coolant passages. Peak current may reach 212 A for brief intervals, so the matched inverter must supply that surge while staying within the allowable temperature rise of the IP00 open design. Operation without a motor encoder means an external feedback device is required when closed-loop accuracy is desired.