Product Description:

The MST530C-0014-FT-N0CN-NNNN is a synchronous torque motor from Bosch Rexroth Indramat's MST Synchronous Torque Motors series. This direct-drive unit is built for low-speed, high-torque positioning or continuous rotation duties where mechanical transmissions are undesirable. In automated presses, rotary tables, or extruders, the motor's large pole count and liquid-cooled stator deliver high continuous torque without gears, reducing backlash and maintenance.

The motor reaches a rated speed of 125 rpm while holding a rated torque of 1200 Nm; at this operating point it produces 15.70 kW of mechanical power. The torque constant is 33.52 Nm/A, so each ampere of phase current produces more than 33 N·m, which helps with drive sizing. A winding inductance of 14.1 mH limits di/dt and smooths current ripple, benefiting control accuracy. Supporting figures include a rated current of 35.8 A and a winding resistance of 1.187 Ω, which indicate copper losses. The motor's maximum electrical speed is 175 rpm, giving margin for overspeed commands, and its power dissipation is held to 4.80 kW through internal coolant passages that need 5.4 L/min of flow. A maximum coolant inlet pressure of 6.0 bar prevents hose collapse during high-flow operation.

Dynamic capability is shown by a standstill torque of 1440 Nm, available whenever the shaft is locked yet energized, and by a peak current limit of 100.0 A for short acceleration bursts. The standstill current of 43.0 A corresponds to this maximum static torque. Thermal behavior is characterized by an 8.3 min time constant, indicating how quickly the windings heat during overloads. The voltage constant of 1.486 V/min⁻¹ links back-EMF to shaft speed and aids regenerative voltage calculations. Torque remains linear until rated power dissipation is reached, after which continuous operation must be reduced to stay within thermal limits.