MAC025A-0-WS-4-E/040-A-1/WI671LV
MAC AC Servo Motors
The Bosch Rexroth Indramat MAC025A-0-WS-4-E/040-A-1/WI671LV from the MAC AC Servo Motors series is a robust industrial servo motor designed for precise motion control. It delivers a nominal speed of 2000 min^-1 and continuous torque at standstill of 3.7 Nm (5.0 Nm with surface cooling) driven by a continuous current of 8.1 A (10.9 A with surface cooling). With a torque constant of 0.51 Nm/A and a rotor moment of inertia of 20 x 10^-4 kgm^2, it achieves responsive acceleration. The motor incorporates a thermal time constant of 45 minutes (30 minutes with surface cooling) and weighs 12.5 kg. Enclosed to IP65 standards, it withstands ambient temperatures from 0°C to 45°C and storage conditions from -20°C to 80°C, making it ideal for demanding industrial automation applications.
Technical Specifications
Continuous Current At Standstill
8.1 A (10.9 A with surface cooling)
Continuous Torque At Standstill
3.7 Nm (5.0 Nm with surface cooling)
Insulation Classification
F
Mass
12.5 kg
Maximum Peak Of Pulse Current
53 A
Nominal Motor Speed
2000 min^-1
Permissible Ambient Temperature
0°C to +45°C
Permissible Storage Temperature
-20°C to +80°C
Protection Category
IP 65
Rotor Moment Of Inertia
20 x 10^-4 kgm^2
Thermal Time Constant
45 minutes (30 minutes with surface cooling)
Torque Constant At 20°c
0.51 Nm/A
Voltage Constant Of Tachogenerator
0.0143 Vs/rad
Winding Inductance
1.9 mH
Winding Resistance At 20°c
1.85 Ohm
Frequently Asked Questions
What tuning behavior can be expected when integrating this motor into a high-precision torque control loop?
Its torque constant of 0.51 Nm/A ensures predictable response per ampere input. This improves control linearity in current-regulated drive systems.
How does the motor balance mid-range torque performance with compact mechanical integration?
It delivers 3.7 Nm continuous torque, supporting steady motion under nominal load. This matches well with mid-duty automation tasks requiring precision.
What mounting or handling implications arise when integrating this unit into suspended or mobile-axis designs?
The motor weighs 12.5 kg, offering a compromise between mechanical robustness and manageability. It suits both stationary and moving frame assemblies.
How is speed control optimized for stable actuation in synchronized servo axes?
It operates at a nominal speed of 2000 min⁻¹, delivering smooth, controlled motion. This helps reduce resonance effects in coordinated multi-axis systems.
How does the MAC025A-0-WS-4-E/040-A-1/WI671LV maintain stability during prolonged thermal exposure in automation environments?
It is engineered with a 45-minute thermal time constant, allowing gradual internal temperature rise. This improves resistance to thermal saturation during long operating periods.
Internal Product Review
The MAC025A-0-WS-4-E/040-A-1/WI671LV servo motor is from Bosch Rexroth MAC series. It offers a nominal speed of 2000 min⁻¹. It provides 3.7 Nm continuous torque, 0.51 Nm/A torque constant, and a 45-minute thermal time constant. It weighs 12.5 kg and balances power with portability for industrial automation systems.
Shipping & Payment Options
Warranty
Repair
We offer a repair service for the MAC025A-0-WS-4-E/040-A-1/WI671LV.
Want to 
