Product Description:

The MAC112D-0-HD-3-C/130-A-1 is a servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Classified as a motor for analog drives, it converts drive commands into controlled rotary motion for positioning and velocity tasks on machine tools, packaging lines, and assembly stations. A built-in blocking brake holds the load when power is removed, and the unit is supplied with standard tacho feedback so analog controllers can monitor speed directly from the secondary shaft. This arrangement supports closed-loop speed regulation and steady response when the axis is exposed to changing process loads. It is suited to applications that rely on analog command structures, especially where predictable speed behavior is required during repeated cycles.

The blocking brake produces 45 Nm of holding torque, allowing vertical axes to remain stationary during shutdowns. Accurate mechanical alignment is helped by the 130 mm centering diameter, which mates to precision mounting flanges. Heat generated in the stator is dissipated through natural convection, eliminating the need for external blowers or liquid circuits. Under rated conditions, the rotor reaches 1500 min⁻¹, a speed that suits common gearbox ratios in material-handling equipment. The tachogenerator outputs 3 V/1000 min⁻¹, giving drive electronics a linear voltage reference for stable analog velocity loops. Because cooling is passive, the motor can be used in installations where additional airflow hardware around the housing is not desired.

The frame uses size 112 with motor length code D, providing substantial active material for continuous-duty operation without making the housing excessively large. Electrical power is routed through a connector on side A, a layout that places cable stress away from nearby moving parts and can simplify routing along one side of the machine. Winding code HD identifies the copper fill and turns count used with medium-voltage analog amplifiers. Motion feedback is supplied through tacho feedback and a second shaft end, which allows external sensing devices or mechanical pickups to be added when the application requires them. The secondary shaft arrangement is useful in layouts that need auxiliary monitoring without changing the main drive connection.