Product Description:

The MST210C-0060-FT-N0CN-NNNN stator belongs to the MST Synchronous Torque Motors series manufactured by Bosch Rexroth Indramat. As a frameless torque motor component, it delivers high continuous torque directly to rotary axes without gearboxes, making it suitable for indexing tables, printing rolls, and similar precision drives in industrial automation. The unit is supplied as the stationary part of the motor and relies on external liquid cooling to maintain thermal stability during continuous duty cycles.

The thermal management system centers on liquid circulation through an aluminum jacket. A coolant flow of 6 l/min of water is required to extract the losses generated in the copper windings. The jacket itself is machined from aluminum, a material selected for its high thermal conductivity, which spreads heat evenly around the circumference. For safe operation, the inlet circuit must not exceed 3 bar, and the pressure drop between the entry and exit ports is limited to 0.1 bar, indicating minimal hydraulic resistance. Electrical power and temperature-sensor cabling exit through the larger outside-diameter end of the housing, keeping hoses and wires on the same side of the machine frame. The stator windings are sealed by thermal encapsulation to help prevent moisture intrusion and vibration-induced displacement.

This model contains 20 pole pairs, a configuration that increases torque density at low speed while permitting smooth positioning through high-resolution current control. The laminated core and coil assembly weighs 11.5 kg, giving a favorable ratio between active copper mass and structural support. When driven at rated continuous current, the windings exhibit a temperature rise of 10 K, and thermal equilibrium is reached within 2.4 min, which supports rapid load changes during cyclic duty. The housing has an IP00 protection class, and there is no integrated motor encoder, allowing the machine designer to select a feedback device that matches the application’s accuracy requirements.