Product Description:

The MAC021A-0-YS-3-E/032-B-0 is a small-frame AC servo motor produced by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It is intended to drive lightly loaded rotary axes that are controlled by classical analog velocity or position amplifiers in automated assembly cells and material-handling stations. Within these systems, the motor supplies the continuous torque and rapid acceleration required for repeatable point-to-point moves while maintaining accurate feedback to the drive controller. Its compact format also helps the unit fit into tightly spaced machine sections where larger motors would limit surrounding mechanical travel.

Thermal management relies on natural convection, so external blowers or liquid circuits are not needed and the housing must remain exposed to ambient airflow. For safety during power-off conditions, the unit is supplied without a blocking brake, so mechanical holding must be provided externally if the driven load cannot coast. Electrical energy reaches the stator through a connector on side B, which simplifies cable routing when the motor is mounted with the output shaft facing the operator side. Position and speed information are generated by internal tacho feedback, and the mechanical design includes a dedicated second shaft end that can accept a belt pulley or an auxiliary encoder without altering the primary coupling.

The physical envelope corresponds to motor length code A in the series, and the frame is categorized as size 021, giving a compact footprint that helps keep inertia low for agile response. When paired with a suitable controller, this configuration makes the unit a motor for analog drives, allowing straightforward integration into legacy servo racks that regulate current and velocity through ±10 V commands. This layout suits light pick-and-place grippers, miniature index tables, and labeling spindles where installation space is limited and precise motion is required. It also works well in machines that use separate drive electronics and depend on stable motor feedback during frequent starts, stops, and short indexing moves.