Product Description:

The MST130C-0200-FT-N0CN-D303 torque motor is produced by Bosch Rexroth Indramat within the MST Synchronous Torque Motors series. It is a direct-drive rotary actuator intended to supply high continuous torque to indexing tables, printing cylinders, and similar axes without mechanical gear reduction. That layout eliminates gearbox backlash and lets the motor act directly on the load, which is useful where smooth low-speed motion and accurate angular control are important. Heat from the stator is removed by water cooling that flows through an open aluminum jacket with an outer diameter of 150 mm. The open jacket is intended to connect to an external coolant circuit rather than rely on ambient airflow alone. Because the stator windings and terminals are exposed, the motor has an IP00 enclosure rating and must be installed inside a protected machine housing or closed cabinet.

During continuous operation, the motor delivers a mechanical output of 5.24 kW at a rated speed of 2000 rpm. At that operating point, it produces 25 Nm of torque and draws 15.2 A of phase current. Its torque constant is 1.65 Nm/A, which lets the connected drive relate commanded current to produced torque in a predictable way during closed-loop control. This steady operating point is suitable for rotary axes that run for long periods at constant speed or under continuous process load. Power connections require cables with a 1.5 mm² conductor cross-section, and the winding resistance is 1.62 Ω at 20 °C. A matching amplifier must account for these values when supplying continuous current through the motor leads.

For short acceleration periods, the winding can accept up to 38 A, allowing a peak torque of 40 Nm without magnetic saturation. The winding inductance of 6.6 mH limits how quickly current can rise, which affects drive response during rapid load changes. A back EMF constant of 0.071 V/rpm indicates the voltage the controller must supply as speed increases. The controller therefore needs enough voltage margin to maintain commanded current as rotational speed rises. Positioning, rapid indexing, and tension-control axes use this behavior to maintain direct-drive response and precise speed regulation.