Product Description:

Bosch Rexroth Indramat manufactures the MAC025C-0-QS-4-E/040-B-0/WI671LV servo motor within the MAC AC Servo Motors series. The unit is a compact permanent-magnet AC motor intended to pair with analog velocity and torque drives in automated assembly lines, pick-and-place modules, and light material-handling axes. Its role is to convert drive current into precise rotary motion, allowing controllers to position or regulate speed with minimal lost motion in the drive train. The compact format also suits installations where surrounding machine parts leave limited space for the motor body and cabling.

Thermal management relies on natural convection, so installation must leave clearance for rising air along the housing fins. A frame length of 025 keeps axial depth short, which is useful when the motor must sit near gearboxes or timing pulleys. Diameter code C corresponds to flange and shaft dimensions commonly used on low-power servo axes. Power enters through a keyed connector on side B, which routes the supply cable away from moving machine elements on side A and helps reduce flex stress. The motor also uses varnished stator windings and tight rotor balancing to support continuous cyclic duty without extra cooling hardware.

The motor comes without a blocking brake, so load holding during power-off must be handled by the drive or by the machine mechanism. The feedback channel can use tachometer feedback, an incremental encoder, or an absolute encoder, giving the control system several closed-loop options for speed or position regulation. Because it is a motor for analog drives, the signal interface remains compatible with legacy ±10 V amplifiers used on existing production lines. The feedback side uses standard encoder mounting, which keeps the interface consistent with common encoder hardware and simplifies mechanical fit-up.