Product Description:

The MST210R-0035-FT-N0CN-D302 is a three-phase synchronous torque motor supplied by Bosch Rexroth Indramat within the MST Synchronous Torque Motors series. As an open kit motor, it is integrated directly into the machine frame, allowing direct drive of rotary tables or extruder screws without intermediary gear stages. The motor provides high continuous torque at low shaft speed, making it suitable for precision positioning and constant-torque process equipment in industrial automation. This direct-drive arrangement also reduces backlash and mechanical compliance that can occur in geared transmissions, which helps support smooth motion and accurate response under changing load conditions.

The electromagnetic section is rated for a continuous mechanical output of 3.80 kW at a shaft speed of 350 min⁻¹. A torque constant of 8.08 Nm/A links drive current to generated torque, so the listed rated current of 13.0 A produces approximately 105 Nm. Coil behavior is influenced by a winding inductance of 20 mH and a winding resistance of 5.3 Ω, and these values affect current ripple, servo bandwidth, and heat dissipation inside the stator. For dynamic peaks such as acceleration or short load impulses, the windings can accept up to 44.0 A from the connected inverter, provided that the mandatory SNM.150.DK temperature sensor is monitored to keep the copper within its thermal limit. Power conductors use 1.0 mm² leads, matching the compact winding cross-section.

The magnetic circuit permits a top rotor frequency corresponding to 750 min⁻¹, which provides headroom for overspeed positioning moves without demagnetization risk. Because the kit is supplied without housing, it carries a protection level of IP00, so the installation relies on the host machine enclosure for shielding. Liquid cooling channels must be fed with a stable pressure of 6 bar to remove Joule and iron losses from the stator laminations and maintain steady operating torque over long duty cycles. Exposed active parts must be protected by the surrounding machine structure during operation.