The MAC112B-0-GD-4-C/130-A-1/WI524LV/S021 motor from Bosch Rexroth Indramat embodies the advanced engineering of the MAC AC Servo Motors series. This AC Servo Motor features a compact Motor Size 112 and a robust Motor Length B configuration, providing a solid foundation for high-performance applications. Designed for continuous operation at a Nominal motor speed of 3000 min-1, it delivers a Continuous torque at standstill of 9.8 (13.0) Nm and supports dynamic loads with a mass of 25 kg. With its built-in incremental encoder mounting and standard blocking brake, this permanent magnet motor ensures precise position feedback and reliable holding torque.
In terms of technical capabilities, the motor offers a Continuous current at standstill of 31.0 (41.3) Amperes and a Maximum peak of pulse current of 130 Amperes for short-term overload demands. Its Torque constant at 20 °C of 0.350 Nm/A and Windings inductance of 1.9 mH deliver responsive torque generation, while a Windings resistance at 20 °C of 0.180 Ohm optimizes electrical efficiency and heat management. The rotor’s Moment of inertia of 61 x 10-4 kgm2 ensures rapid acceleration and precise speed control under varying loads. A Thermal time constant of 100 (75) min allows sustained high-duty cycles without undue thermal stress.
Operationally, the motor’s Cooling Type: Natural Convection design simplifies maintenance and reduces auxiliary components. The high power-to-weight ratio supports continuous start-stop cycles and high repetition rates, making it ideal for automation tasks requiring frequent motion changes. The combination of encoder accuracy and robust torque output enhances process stability, while the integrated brake ensures safe, immediate stops during power loss or emergency shutdowns. The IP65 housing and F-class insulation deliver reliable protection against dust and moisture, extending service life in harsh industrial environments.
Integration of the motor into broader systems is facilitated by its standard power connector on Side A and compatibility with Rexroth servo drives. Its series architecture supports seamless communication with controllers for advanced motion algorithms and diagnostics. The MAC112B is well suited for machine tooling, packaging machinery, and robotic assemblies where precise speed control, dynamic torque response, and environmental resilience are essential.
Continuous current at standstill
31.0 (41.3) Amperes
Continuous torque at standstill
9.8 (13.0) Nm
Mass
25 kg
Maximum peak of pulse current
130 Amperes
Nominal motor speed
3000 min-1
Rotor moment of inertia
61 x 10-4 kgm2
Thermal time constant
100 (75) min
Torque constant at 20 !C
0.350 Nm/A
Windings inductance
1.9 mH
Windings resistance at 20 !C
0.180 Ohm
AC Servo Motor
MAC
Motor Size
112
Motor Length
B
Cooling Type
Natural Convection