Product Description:

Bosch Rexroth Indramat manufactures the MAC112C-0-KD-4-C/180-B-2 servo motor, a member of the MAC AC Servo Motors series. Intended for analog drive systems, the unit converts controlled electrical power into precise rotary motion for positioning, conveying, and tooling axes in automated machinery. Its feedback configuration combines tacho output with an optional incremental or absolute encoder, so the associated drive can monitor both speed and position in real time. This arrangement supports steady speed regulation during continuous motion and accurate tracking during indexed moves.

Mechanically, the motor includes a heavy-duty blocking brake that can hold the shaft with 60 Nm of static torque, allowing vertical or load-holding axes to remain stationary when the power stage is disabled. Shaft alignment to connected machinery is simplified by a centering pilot of 180 mm, and the housing sheds heat through natural convection, eliminating the need for external blowers. This cooling method suits installations with unobstructed airflow and moderate ambient temperatures. Under rated excitation, the rotor reaches 1500 rpm, a speed compatible with common gearbox ratios used in material-handling lines. Power conductors terminate through a connector on side B, which helps keep the cable bundle away from moving parts and simplifies cabinet layout.

Signal integrity is maintained by the tacho generator that produces 3 V/1000 rpm, giving drive electronics proportional feedback for speed control. An encoder option shares the same flange to support higher-resolution position loops. The motor belongs to size 112, and its frame uses length code C for added stack depth. The longer stack increases active magnetic length and supports the torque expected from this frame. Together with the KD winding, this layout balances current demand against available DC-bus voltage in legacy analog amplifiers.