Product Description:

The MAC112C-0-HD-1-B/130-A-1/J625/S05 is an AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Designed to operate with analog drive controllers, the unit converts electrical commands into controlled rotation for positioning and velocity loops in industrial automation. Its HD winding code matches drive modules that supply higher current density, and the standard blocking brake maintains shaft position whenever the system is de-energized. The motor combines speed sensing and position feedback in one housing, which reduces the need for external transducers on the machine. Because it is intended for analog systems, it fits equipment that uses separate feedback channels instead of fully digital motor communication.

The motor follows size code 112, giving a stator diameter that accepts frame hardware common to the 112 family. Length code C indicates the active lamination stack, which affects continuous torque capacity without changing the mounting interface. A nominal speed of 2000 rpm allows the drive to match gear ratios while keeping electrical frequency within the controller's range. Heat is removed by natural convection, eliminating the need for forced air or liquid circuits. Power conductors enter through the connector on side A, which can simplify cable routing in compact installations. The HD winding presents reduced resistance per phase, lowering copper loss during cyclic acceleration. Passive cooling also avoids the added maintenance associated with external fans or liquid hoses.

Mechanical retention is provided by a blocking brake rated at 45 Nm, which is suitable for holding the shaft while a vertical axis stands idle. The brake also helps prevent unintended drift after power removal on gravity-loaded axes. During installation, the flange centers on a 130 mm locating pilot, ensuring concentric alignment with gearboxes or couplings. For position loop closure, the motor returns incremental pulses through incremental encoder feedback, allowing the analog drive to detect shaft movement with fine resolution. A built-in tacho generator delivers 3 V/1000 rpm, supplying a linear speed signal for legacy drives that require analog velocity feedback. Legacy control platforms can use the tacho signal for velocity regulation while the encoder pulses support position tracking.