MAC112D-0-ED-4-C/130-A-0

MAC AC Servo Motors

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The MAC112D-0-ED-4-C/130-A-0 is an AC servo motor produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. As a motor for analogue drives it supplies controlled rotary motion to machine axes and transfer units in automated lines. By coupling to a drive controller it converts electrical commands into mechanical rotation, allowing precise positioning or velocity regulation required in packaging, printing, and material-handling stations across general industrial automation. Its design aligns with applications where compact dimensions, natural cooling, and incremental or absolute feedback simplify cabinet layouts.

The motor relies on natural convection for heat dissipation, so airflow around the housing must be unobstructed to keep winding temperature inside safe limits. At a nominal speed of 3000 min⁻¹ it delivers continuous motion matched to analog velocity loops, while maintaining thermal balance under rated load. A centering pilot of 130 mm locates the flange accurately on the machine frame and ensures concentric alignment with coupled mechanics. Because there is no blocking brake, the machine designer must provide external holding methods when power is removed. The electromagnetic characteristics defined by winding code ED set the stator resistance and inductance values expected by the MAC-compatible drive, affecting current demand and dynamic torque response.

Integration with the drive is facilitated by a combined tachofeedback incremental or absolute encoder, giving either pulse or multiturn position data alongside analog velocity signals. Power conductors attach through a connector on side A, simplifying cable runs when the motor is mounted with its shaft toward the operator side of a machine. The built-in tacho generator outputs 3 V/1000 min⁻¹, providing a proportional velocity reference to legacy controllers. Mechanical dimensions follow the series’ motor size 112 envelope and length code D, helping designers interchange units without altering mounting plates or couplings.