MAC071C-0-NS-3-C/095-A-1/S017

The Bosch Rexroth Indramat MAC071C-0-NS-3-C/095-A-1/S017 is a high-performance brushless AC servo motor in the MAC AC Servo Motors series, featuring fully integrated electronics within its housing for streamlined installation. Designed with a power connector on Side A and a standard mounting encoder, this motor delivers precise feedback and control for demanding automation tasks. A built-in standard blocking brake ensures reliable holding torque and safe operation during emergency stops. The unit’s rotor assembly is supported by a natural convection cooling system that maintains optimal thermal conditions without auxiliary fans. With compact dimensions (Motor Size 71, Motor Length C) and an 11 kg mass, it balances power density and structural stability in a variety of industrial settings.

Technical specifications are engineered to meet rigorous performance criteria. The motor provides a continuous current at standstill of 11.0 A and a continuous torque at standstill of 6.6 Nm (up to 17.7 A and 9.9 Nm under overload conditions). Peak output is driven by a maximum peak of pulse current of 55 A, enabling rapid acceleration. Its nominal motor speed of 3000 min^-1 pairs with a torque constant of 0.600 Nm/A at 20 °C for consistent torque-to-current conversion. The windings resistance at 20 °C of 0.69 ohm and a rotor moment of inertia of 12.9 x 10^-4 kg·m² deliver predictable dynamic response. Thermal management is characterized by a thermal time constant of 45 minutes (20-minute reduction under specified test load).

Operational features emphasize reliability under varying environmental conditions. The natural convection cooling type eliminates moving parts, reducing maintenance and ensuring operation in ambient temperatures from 0 to 45 °C. This convection mechanism relies solely on temperature differentials to dissipate heat, supporting continuous duty cycles without additional cooling infrastructure. Feedback is provided by the integrated encoder on Side A and a tachometer on the second shaft end, enabling closed-loop control of velocity and position. The standard blocking brake engages automatically upon power loss, offering secure holding torque for vertical axes and precision positioning.

System integration benefits from the complete servo solution concept of Bosch Rexroth Indramat. Direct compatibility with standard servo drives and controllers simplifies wiring and programming, while the internal encoder removes the need for external feedback modules. The unit’s form factor and mounting encoder interface make it suitable for robotics, CNC machining, conveyor positioning, and packaging equipment. Its combination of high continuous torque, compact mass, and integrated brake and encoder support robust performance in advanced industrial automation applications.