Product Description:

The MAC112C-0-ED-1-B/130-A-0/J1250/S05 is an AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It functions as the electromechanical element of analog drive axes, delivering commanded torque and speed to machinery that needs tightly regulated motion. By pairing its internal magnetic circuit with a drive controller, the unit supports repetitive positioning, cutter rotation, or conveyor indexing where feedback-based accuracy is essential in industrial automation. This arrangement allows the motor to respond smoothly to changing command signals and load disturbances during continuous machine cycles.

This model operates without a blocking brake, so any load holding after power removal must be provided by the drive torque or an external mechanical lock. A centering shoulder of 130 mm aligns the flange with adjoining machine frames and helps maintain repeatable shaft concentricity. Heat is dissipated by natural convection, so no forced-air or liquid circuit is built in and open space around the housing is needed for airflow. Rotor position is returned to the drive through incremental encoder feedback, enabling closed-loop control with fine resolution while remaining compatible with legacy analog interfaces. The mechanical stack corresponds to length code C, giving a mid-length active iron stack that balances continuous torque capacity with overall motor weight.

The frame is classified as Size 112, matching couplings or gearboxes designed for this metric flange pattern. Under rated excitation, the shaft reaches a nominal speed of 3000 rpm, which suits many standard transmission ratios without pushing the motor beyond its intended operating range. Power and feedback cabling exit through a connector on side A, which can simplify routing along the machine base and reduce tight cable bends near the motor. For velocity monitoring independent of digital feedback, the built-in tacho generator produces 3 V/1000 rpm, giving the analog drive an additional reference signal for speed regulation. This mix of encoder and tacho feedback is useful in motion systems that need both position tracking and stable speed control.