Product Description:

The MAC90C-0-KD-2-C/110-A-1/S022 is an AC servo motor manufactured by Bosch Rexroth Indramat and belongs to the MAC AC Servo Motors series. Designed for analog drive controllers, it converts electrical energy into precisely regulated rotary motion for positioning tables, conveyors, and other automated machinery. This operating concept suits machines that require repeatable speed regulation and stable positioning through frequent start-stop cycles. A centering diameter of 110 mm streamlines flange alignment, while tacho feedback supplies continuous speed data to the drive for closed-loop regulation during startup, steady running, and speed correction under changing loads.

The motor reaches a nominal shaft speed of 2000 rpm, providing constant velocity when the controller outputs rated frequency and voltage. At standstill it can deliver 10.4 Nm to support static loads without additional gearing, and that torque is produced with a phase current of 13.9 A. A torque constant of 0.68 Nm/A links output torque linearly to armature current, aiding accurate current control, while copper losses are limited by a winding resistance of 0.60 ohm. Heat is dissipated through natural convection, eliminating the need for external blowers. Additional operating values include a standstill current of 17.0 A, a winding inductance of 3.6 mH that shapes current ripple, rotor inertia of 53 × 10⁻⁴ kg·m² that affects acceleration response, a thermal time constant of 60 min that influences heating rates, and a brake coil demand of 0.7 A.

During rapid indexing, the drive can inject a peak pulse current of 125 A, enabling short bursts of high acceleration without demagnetizing the rotor. Once motion ceases, the integral holding brake supplies 6.5 Nm to secure vertical or oscillating axes when power is removed. The integrated brake also helps prevent drift when the axis remains loaded in a stopped position. The assembly weighs 23 kg, which must be considered for gantry load calculations and mounting hardware selection.