Product Description:

The MAC021A-0-YS-2-E/032-B-0/S004 is an AC servo motor produced by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It provides closed-loop torque and speed control for analog drive amplifiers used in automated machinery. Occupying the smaller end of the MAC frame range, this motor is suited to light-duty axes such as labeling heads, small pick-and-place stations, and miniature conveyors where repeatable motion and compact dimensions are required. In this role, the motor converts commanded current into controlled shaft rotation for indexing, feeding, and small positioning tasks. Its compact format makes it suitable where machine space is limited and moving mass must stay low.

The motor is built without a blocking brake, so load holding or emergency stopping must be handled by the external drive or by a mechanical latch. Heat is removed by natural convection, and the housing uses longitudinal fins and ambient airflow instead of fans to dissipate operating losses. A compact motor size 021 frame combined with the shorter motor length A stack helps reduce rotor inertia and lowers overhang loads on connected gear elements. The reduced frame length also helps when the motor is mounted close to guarding, slides, or compact transmission parts. Electrical power enters through a connector on side B, which keeps the cable exit away from the shaft and supports right-angle routing in confined spaces.

Velocity information returns to the drive through tacho feedback, which supplies an analog voltage proportional to motor speed rather than digital encoder data. Because it is intended as a motor for analog drives, commutation functions remain in the drive electronics, keeping the motor itself straightforward in layout and signaling. The sensor is integrated into the motor, so speed feedback is available without adding a separate external measuring device. The drive can use this analog speed signal to stabilize velocity during acceleration and steady running. Within the MAC AC Servo Motors family, the mounting flange and bolt-circle arrangement stay consistent with related models in the series.