Product Description:

The MST130E-0020-FT-N0CN-NNNN is a frameless synchronous torque motor manufactured by Bosch Rexroth Indramat for the MST Synchronous Torque Motors series. As a torque motor, it supplies direct rotary force at low speed, allowing machine builders to mount the stator and rotor directly into rotary tables, indexing heads, or printing cylinders without gearboxes. In industrial automation, this arrangement simplifies mechanical layouts and increases positioning accuracy for processes that demand high continuous torque at limited rotational speed.

During continuous duty, the unit delivers a rated torque of 42 Nm while drawing a rated current of 6.3 A, producing 2.0 kW of mechanical output at the nominal speed of 450 rpm. The torque constant of 5.60 Nm/A indicates how much torque is produced for every ampere and helps match the motor to a suitable drive. For transient peaks, the winding can accept 12 A, enabling the motor to reach a maximum torque of 65 Nm for rapid indexing or overcoming static loads. Ten embedded pole pairs establish the magnetic field pattern that supports smooth motion at low velocity. Electrical characteristics include a winding inductance of 65.4 mH and a resistance of 5.9 Ω, which affect current rise time and copper loss.

The motor is equipped with an annular cooling jacket that measures 150 mm in outside diameter and 153 mm in length, so it fits compact machine frames while maintaining thermal stability. Efficient water cooling removes heat directly from the copper, allowing the stator to sustain the specified performance without derating. The bare-frame design carries the protection level IP00, so the installation site must provide its own enclosure against debris or fluid ingress. A mass of 8.5 kg eases handling during assembly and minimizes moving inertia when the load is supported solely by the application bearing system.