Product Description:

The MST450E-0018-NS-N0CN-NNNN is a low-speed, high-torque servo motor manufactured by Bosch Rexroth Indramat and assigned to the MST Synchronous Torque Motors series. By delivering large continuous torque at modest rotational velocity, the unit is intended for direct-drive axes in presses, winders, and rotary tables where gearboxes are undesirable. Electrical power enters through an axial cable with a larger outer diameter, and a 17.0 ±0.5 mm jacket protects the conductors. The motor is supplied without an encoder, so external feedback devices or sensorless control strategies must be selected when precise position or speed regulation is required.

At the continuous operating point, the motor runs at a rated speed of 180 rpm, produces a rated torque of 540 Nm, and delivers a rated mechanical output of 10.20 kW. Achieving this shaft power calls for a phase current of 17.7 A, conducted through 2.5 mm² power leads. During normal loading, the stator releases 1.14 kW of heat that must be removed by the installed cooling arrangement. Leakage capacitance is limited to 24.1 nF, a consideration when sizing RCD-protected circuits. The motor has a voltage constant of 1.930 V/min⁻¹, which the drive uses to predict required DC-bus voltage and support field-oriented control.

When the rotor is locked, the motor can develop a standstill torque of 625 Nm at a standstill current of 19.8 A; these values guide peak load and short-term stall calculations. The torque constant of 30.40 Nm/A links phase current to electromechanical output across the entire speed range. A thermal time constant of 170.0 min indicates that winding temperature rises slowly, permitting lengthy duty cycles before steady-state heat balance is reached. The motor is suitable for direct coupling to large-diameter process tooling without mechanical reduction stages.