Product Description:

The MAC021B-0-WS-2-E/032-B-0 servo motor is manufactured by Bosch Rexroth Indramat and belongs to the MAC AC Servo Motors series. Intended as a motor for analog drives, it translates current-mode commands from a drive amplifier into controlled mechanical rotation for pick-and-place arms, small conveyors, and other positioning axes found in automated assembly and packaging equipment. A permanent-magnet rotor interacts with the stator windings to deliver rapid velocity changes demanded by such motion tasks while maintaining accuracy through its integrated feedback path. This operating style suits compact machinery that requires short move times and repeatable response during frequent starts and stops.

This model relies on natural convection to move heat from the housing surface into the surrounding air, eliminating the need for forced ventilation inside compact control cabinets. Rotor position and speed are monitored through tacho feedback, giving the external analog controller a real-time signal for closed-loop regulation. Mechanical geometry uses the motor’s size 021 frame and motor length B, a pairing that balances inertia against available installation depth. The electromagnetic package uses the WS winding, which corresponds to a turns count and resistance that align with standard MAC series drive voltages and current limits.

The motor is supplied without a blocking brake, so any static holding force must be generated by the drive amplifier or external mechanics when power is removed. Power leads exit through a connector on side B, which can simplify cable routing in machines where wiring channels run along the motor’s rear face. Classified as a motor for analog drives, it pairs directly with voltage-controlled converters that predate digital fieldbus architectures yet remain common in retrofit projects. Its compact layout also helps the unit fit installations that favor passive cooling and minimal ancillary hardware. That makes the unit useful on legacy equipment where existing control cabinets, amplifier types, and machine envelopes are retained during incremental upgrades.