Product Description:

The MDC3.10C/SS-0/S034 permanent-magnet DC motor is supplied by Bosch Rexroth Indramat within the MDC DC Motors series. Designed for industrial automation, the unit converts controlled direct-current input into steady shaft torque for indexing tables, press feeders, and conveyor zones. Its short overall length and sealed housing allow installation inside machine frames where airborne debris or limited airflow would restrict other motor types.

During continuous duty, the motor draws 22 A of armature current and delivers 9 N·m of torque at the shaft. The electromechanical conversion uses a torque constant of 0.40 N·m/A, so each ampere contributes 0.40 newton-meters of torque. Copper losses are limited by an armature resistance of 0.17 Ω, while an armature inductance of 0.45 mH limits current ripple when the drive uses pulse-width modulation. With an electrical time constant of 2.6 ms, the current settles rapidly after a step command, supporting responsive speed and torque control. The back-EMF constant is 0.40 V·s/rad, providing a predictable voltage response during dynamic braking. The totally enclosed, nonventilated cooling design requires no external fan and allows operation without a dedicated airflow source.

Short acceleration bursts are supported by a peak armature current of 200 A, and the controller may apply up to 170 V without exceeding the insulation limit. The rotor inertia of 0.020 kg·m² combines with a mechanical time constant of 20.8 ms to determine how quickly speed changes follow load disturbances. A tachometer output with a voltage constant of 0.317 V·s/rad is available for analog speed feedback. The motor has a thermal time constant of 120 minutes, which results in a gradual temperature rise toward equilibrium. Operation is permitted at ambient temperatures up to 45 °C.