Product Description:

The MST530C-0010-NS-N0CN-NNNN is a frameless torque motor supplied by Bosch Rexroth Indramat within the MST Synchronous Torque Motors series. It is intended for low-speed, high-torque tasks such as rotary tables, direct-drive extruders, and indexing heads where a gearbox is undesirable. By integrating the stator and rotor directly into the machine frame, the motor delivers continuous rotation without mechanical backlash, improving positional accuracy and reducing maintenance in automated production lines.

This model produces a continuous torque of 580.0 Nm, and that output is achieved while the winding draws a nominal phase current of 15.0 A. At this operating point, the motor delivers a mechanical output of 6.10 kW, which suits medium-capacity material-forming or winding equipment. The electromagnetic circuit uses 35 pole pairs, allowing the drive controller to apply fine commutation steps and maintain smooth rotation at very low speeds. Heat produced in the copper is removed by a self-cooling design that relies on natural convection over the stator housing. Cabling exits on the large outside-diameter face through an axial lead, and the assembly has an IP00 construction for protection against accidental contact.

During machine startup or while holding a static load, the motor can resist 600 Nm without movement, while the inverter must supply a peak standstill current of 15.6 A. This operating range is useful for positioning tables or presses before motion begins. The laminated core and windings weigh 71.0 kg, adding thermal mass that slows temperature rise during cyclic overloads. Insulation is certified to 155 (F) thermal class, allowing coil temperatures up to 155 °C before aging accelerates. Standard encapsulation, the lack of an integrated encoder, and the general-purpose design allow the motor to be used with custom feedback and bearing arrangements in OEM machinery.