Product Description:

The MST450E-0006-FT-N0RN-NNNN is a synchronous torque motor built by Bosch Rexroth Indramat within the MST Synchronous Torque Motors series. As a direct-drive stator section, it is intended to deliver high continuous torque at low rotational speeds for indexing tables, extruders, and printing cylinders in industrial automation. The unit ships as a frameless stator that pairs with a matching rotor to transmit torque without gear reduction, thereby improving positioning accuracy and lowering mechanical maintenance demands.

Performance limits include a maximum torque of 3250.0 Nm and a peak phase current of 88.0 A, which indicate the upper range for startup and transient loads. During continuous operation, the motor produces 8.80 kW from a rated torque of 1400.0 Nm at a rated mechanical speed of 60 rpm. These values are sustained with liquid cooling that circulates through the housing and keeps winding temperature within class limits. Electrical power arrives through a radial cable with a larger outer diameter, and its copper conductors occupy 6.0 mm² per phase to minimize voltage drop. The rated current of 32.0 A aligns with standard drive inverters, and the winding resistance of 3.2 Ω at 20 °C governs steady-state losses.

The maximum mechanical speed is 120 rpm, so position controllers can program rapid index moves before settling at process speed. Each ampere of drive current yields 43.80 Nm/A, allowing closed-loop torque regulation with fine resolution. Electromagnetic behavior is further shaped by an inductance of 30 mH, which helps filter current ripple, and the back-EMF constant is 3.860 V per rpm, which the converter must counteract at higher speeds. The stator weighs 54.2 kg, and this mass stores thermal energy while helping damp vibration in the machine frame. Thermo-encapsulation seals the windings against moisture, and liquid passages route coolant directly along the lamination stack to support insulation integrity under continuous duty.