Product Description:

The MAC90B-0-JD-1-B/110-A-0/J1250/S01 is an AC servo motor produced by Bosch Rexroth Indramat for the MAC AC Servo Motors series and intended for analog drive systems that position and regulate machine axes. In operation, it converts commanded current into controlled rotary motion for packaging machines, transfer systems, and similar automated equipment. Cooling is handled by natural convection, so the housing must be placed where ambient airflow can remove heat during continuous operation. A factory-supplied INK 250 power cable with 1.5 mm² conductors connects through an INS 108/02 connector, which simplifies cabinet wiring. The motor weighs 18 kg, which eases installation on medium-frame mounting plates without requiring oversized support hardware.

Under continuous operation, the motor reaches a nominal speed of 3000 rpm. At standstill, it produces 6.7 Nm of torque while drawing 18.2 A. The electromagnetic design provides a torque constant of 0.41 Nm/A, allowing drive regulators to calculate output torque directly from measured phase current. For rapid indexing, the drive may deliver a peak pulse current of 137 A. Combined with a rotor inertia of 36 × 10⁻⁴ kg·m², this supports quick acceleration and deceleration cycles without excessive overshoot. The winding has a 60-minute thermal time constant, so temperature rises gradually after a load change and supports intermittent overloads in automated assembly lines and packaging machinery.

Servo loop tuning is influenced by a phase inductance of 2.0 mH, which helps attenuate current ripple at the motor terminals. The winding also has a phase resistance of 0.38 Ω, which limits continuous copper losses during steady operation and helps the drive maintain predictable current behavior. The sealed enclosure carries a rating of IP65, so dust and directed water jets do not reach live parts, helping maintain insulation strength and encoder reliability in washdown or particulate-rich production areas.