Product Description:

The MST210C-0050-FH-N0PU-M260 is a torque motor produced by Bosch Rexroth Indramat within the MST Synchronous Torque Motors series. Designed for direct-drive rotary tables and similar position-controlled axes, the unit delivers high continuous torque at low speed without mechanical gear reduction. This layout suits machines that need smooth indexing, accurate contouring, and repeatable positioning under changing loads. Because the motor drives the load directly, it can reduce wear points associated with couplings, belts, or gear stages. Integrating the stator directly into the machine frame minimizes backlash, while the rotor’s permanent magnets allow the drive controller to apply precise, cog-free motion in automated machining and assembly lines.

The motor is equipped with liquid cooling, so thermal energy is removed through a coolant circuit instead of relying on ambient air. A rotatable plug makes cable routing flexible because the power connector can be turned to match cabinet layouts. All active parts are enclosed in a closed aluminum cooling jacket that seals the windings from contamination and channels coolant evenly around the stator. Power conductors up to 4.0 mm² can be terminated in the housing, providing adequate cross-section for the continuous phase current drawn by high-torque operation. Temperature feedback is supplied by the combined sensor pack KTY84-130 + SNM-150 DK, and the drive uses these signals to limit thermal overload during prolonged duty cycles.

An RLS1200 flange socket on the front face mates directly with matching machine flanges, simplifying mechanical integration and ensuring proper centering. The stator uses a winding inductance of 7.6 mH and a winding resistance of 1.23 Ω, which influence current ripple and dynamic response at the inverter output. Because the motor is supplied without an encoder, positional feedback must be provided by an external measuring system when closed-loop positioning is required. This arrangement leaves feedback selection to the machine design and can support applications that already use a separate measuring device at the load. That approach can improve table accuracy when the measuring system is mounted close to the actual rotary axis.