Product Description:

The MAC112D-0-HD-4-C/130-A-2/WI520/S018 is manufactured by Bosch Rexroth Indramat and belongs to the MAC AC Servo Motors series. It is specified as a motor for analog drives and is intended to deliver closed-loop speed and torque control in automated machine tools, material-handling axes, and similar industrial equipment. This type of motor is commonly paired with an external servo amplifier that regulates current and corrects motion changes caused by varying loads. Position data are returned through an incremental encoder with standard mounting, allowing the connected amplifier to monitor shaft rotation during controlled movement.

The unit is equipped with a heavy-duty blocking brake that can hold the shaft with up to 60 Nm of static torque, which helps keep vertical or load-biased axes stationary when power is removed. Precise mechanical alignment is aided by a 130 mm centering diameter that matches common flange interfaces on gearbox or machine-frame mounts. Heat generated in the stator is released through natural convection, so no external blower or liquid cooling circuit is required. The HD winding supports a base speed of 1500 rpm, making the motor suitable for medium-speed production cycles while maintaining stable torque across the working range.

An auxiliary tachogenerator supplies a feedback voltage of 3 V/1000 rpm for analog velocity loops. This separate speed signal gives the drive a direct reference for velocity regulation during continuous operation. Power conductors exit through a connector on side A, which can simplify cable routing when the drive cabinet is located to the motor's left. Cable exit on that side can also help keep the connection area accessible in compact machine layouts. The motor uses size code 112 with length class D, giving it a compact profile with enough rotor inertia for smooth acceleration and steady running.