Product Description:

The MST210D-0070-FT-N0CN-NNNN is a frameless synchronous torque motor stator produced by Bosch Rexroth Indramat for the MST Synchronous Torque Motors series. Engineered for direct integration inside rotary machines, it supplies high continuous torque at low speed, removing the need for gearboxes in indexing tables, printing cylinders, and precision assembly axes. Because the stator is frameless, it is mounted directly into the machine structure instead of a separate motor housing. Its electromagnetic package pairs with an external rotor supplied separately, giving the machine a compact drive element that improves positioning accuracy and reduces maintenance demands in automated production lines.

Under nominal load, the stator is intended to turn the coupled rotor at a rated speed of 700 rpm. At that velocity, it outputs a rated torque of 150.0 Nm, which corresponds to a mechanical power level of 11.00 kW. Achieving these operating points requires a phase current of 32.0 A from the inverter. The magnetic circuit has a torque constant of 4.70 Nm/A, indicating that each ampere contributes nearly five newton-meters of torque. Current-loop dynamics are shaped by a winding inductance of 6.9 mH, which influences the electrical time constant and the bandwidth for rapid torque commands. These values suit packaging, converting, and inspection equipment that needs direct-drive torque at moderate speed and without transmission backlash.

Short-term overload capability lets the stator develop a maximum torque of 300.0 Nm when the supply can momentarily furnish up to 120.0 A. Thermal energy from these peak loads is removed by liquid cooling, and the jacket needs a coolant flow of 6.0 l/min with inlet pressure kept below 3.0 bar. The laminated core and windings weigh 13.8 kg and fit housings with an outer diameter of 230 mm to tolerance f7. Power conductors run through the INK0604 connection cable, whose sheath measures 18.5 mm in diameter, and the phase resistance is 1.4 Ω at 20 °C.