Product Description:

The MAC090B-0-ND-2-C is an AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It is designed as a motor for analog drives, so it interfaces with velocity and current controllers that rely on analog command signals to position or regulate machine axes. By generating closed-loop torque through a built-in tacho generator, the unit supplies consistent motion for packaging lines, printing cylinders, and material-handling equipment where precise speed tracking is required.

At standstill, the motor can deliver 6.7 Nm while drawing a continuous current of 13.0 A; these values indicate its mechanical holding capability and electrical demand during static loads. Dynamic tasks are supported by a peak pulse current of 98 A, enabling short acceleration bursts while limiting excessive heat buildup. The permitted operating range reaches a nominal speed of 3000 rpm, and each ampere supplied produces torque in proportion to the torque constant of 0.58 Nm/A. Copper losses are limited by a winding resistance of 0.75 Ω, while the 3.9 mH inductance controls current rise time for stable drive regulation. Standard tacho feedback closes the speed loop, and natural convection removes heat without forced airflow.

Mechanical inertia is 36 × 10⁻⁴ kg·m², allowing responsive reversals while helping the drive control overshoot. The housing carries an IP65 rating, so the stator is sealed against dust ingress and low-pressure water jets. The motor has a mass of 18 kg, and installation is permitted at elevations up to 1000 m above sea level without derating. A thermal time constant of 60 min indicates that the core temperature rises gradually, giving the drive time to respond to overload conditions. The smooth frame supports passive heat transfer from the motor housing to the surrounding air during operation.