Product Description:

The MAC112D-0FD-3C/130-A-2/S018 is a brushless AC servo motor produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Classified by the manufacturer as a motor for analog drives, it converts drive-amplifier commands into controlled shaft motion for indexing tables, gantries, and machine-tool axes. The motor is delivered in size 112 with a D-length stator stack and relies on natural convection for heat dissipation, allowing cabinet integration without auxiliary blowers or liquid cooling.

Its continuous current is 56 A, allowing the motor to produce a steady torque of 38 Nm during continuous operation. The torque-per-amp ratio is 0.760 Nm/A, supporting predictable torque control as the controller adjusts current. The rated speed is 2000 rpm, so the motor can couple directly to medium-speed machinery without gear reduction. For rapid acceleration or transient load spikes, the windings accept a peak pulse current of 260 A, allowing short bursts of high torque while remaining within the motor’s magnetic limits. The 120-minute thermal time constant indicates how gradually the winding temperature rises during heavy-duty cycles and helps characterize the motor’s thermal response under changing loads.

A permanently mounted holding brake draws 1.35 A and clamps the shaft with 40 Nm of static torque, preventing vertical axes from drifting when the drive is disabled. A centering pilot of 130 mm aligns the motor housing with precision gearboxes and flange plates. The three-phase stator has a leakage inductance of 1.8 mH and a cold winding resistance of 0.110 Ω; these electrical values influence current ripple and voltage drop in the drive’s control loops. Power and feedback connectors are located on side A, while an auxiliary tacho generator on the B-side shaft end supplies analog speed feedback for legacy control systems.