MAC041B-0-BS-4-E/050-B-1/WI671LV
MAC AC Servo Motors
The Bosch Rexroth Indramat MAC041B-0-BS-4-E/050-B-1/WI671LV is a high-performance member of the MAC AC Servo Motors series, designed for precision industrial automation and motion control applications. This rapid-response servo motor delivers a nominal speed of 6000 min-1 with a continuous standstill torque of 0.72 Nm, ensuring stable holding force under load. Its integrated tachofeedback and mounted incremental encoder provide real-time speed and position monitoring for accurate motion profiling. Engineered to withstand harsh environments, the motor features an IP65 protection category that guards against dust and moisture ingress. The robust design supports dynamic load changes and rapid acceleration demands without sacrificing control precision.
The detailed technical specifications underpinning this servo motor include a Continuous Current At Standstill of 5.9 A (8.8 A with surface cooling) and a Maximum Peak Pulse Current of 37 A for short-term high-torque demands. The Torque Constant At 20°C is 0.46 Nm/A, while the Winding Inductance measures 5.1 mH and the Winding Resistance At 20°C is 0.92 Ω, enabling predictable electrical performance. The rotor’s inertia is specified at 5.4 x 10^-4 kgm², complemented by a Thermal Time Constant of 45 minutes (20 minutes with surface cooling) to manage thermal buildup. Insulation is rated F, and the unit has a Mass of 6.5 kg for a durable yet compact form factor. These critical specifications ensure repeatable performance even under continuous operation.
Operationally, the motor maintains full performance within a Permissible Ambient Temperature range of 0°C to +45°C and can be stored or transported safely between -20°C and +80°C. Surface cooling options boost continuous torque to 1.08 Nm and reduce the thermal time constant, facilitating longer duty cycles. The side-mounted power connector on "Side B" simplifies cable routing and minimizes interference with moving parts for cleaner installations. Integrated tachofeedback delivers smooth speed regulation, while the incremental encoder provides high-precision position feedback to the drive controller. These operational features support high responsiveness and repeatable positioning in demanding motion sequences.
System integration is streamlined through standardized mounting dimensions and compatibility with Bosch Rexroth drive electronics, enabling rapid commissioning. The robust IP65 housing and F insulation classification make the motor ideal for packaging, labeling, robotics, CNC machinery, and conveyor systems in food, pharmaceutical, and automotive production. Engineers benefit from simplified cable management and clear thermal parameters when designing compact automation cells. The MAC041B-0-BS-4-E/050-B-1/WI671LV excels in applications requiring precise speed control, high torque density, and reliable performance in industrial environments.
Technical Specifications
Continuous Current At Standstill
5.9 A (8.8 A with surface cooling)
Continuous Torque At Standstill
0.72 Nm (1.08 Nm with surface cooling)
Insulation Classification
F
Mass
6.5 kg
Maximum Peak Pulse Current
37 A
Nominal Motor Speed
6000 min-1
Permissible Ambient Temperature
0°C to +45°C
Permissible Storage And Transport Temperature
-20°C to +80°C
Protection Category
IP65
Rotor Moment Of Inertia
5.4 x 10^-4 kgm²
Thermal Time Constant
45 minutes (20 minutes with surface cooling)
Torque Constant At 20°c
0.46 Nm/A
Winding Inductance
5.1 mH
Winding Resistance At 20°c
0.92 Ohm
Frequently Asked Questions
What torque characteristics make this servo motor suitable for low-load, precision-driven tasks?
It delivers 0.72 Nm continuous torque, providing stable performance for lightweight motion control. It’s ideal for compact axes requiring constant movement.
How does this servo motor manage current flow at rest for reliable static load holding?
It draws 5.9 A standstill current, maintaining shaft position under no-motion conditions. This supports applications where holding torque is critical.
What level of torque sensitivity can be expected during fine-tuned current-controlled operations?
With a torque constant of 0.46 Nm/A, it offers precise torque output per ampere. This supports high-resolution motor control in servo loops.
How does the feedback system enhance motion accuracy under high-speed operation?
The integrated tachofeedback provides real-time speed data for tight control. This ensures accurate velocity regulation in fast dynamic motion profiles.
How does this servo motor support high-speed positioning in responsive automation systems?
The MAC041B-0-BS-4-E/050-B-1/WI671LV operates at a nominal speed of 6000 min⁻¹. It enables fast cycle execution in applications like pick-and-place or small-part handling.
Internal Product Review
The model MAC041B-0-BS-4-E/050-B-1/WI671LV is a servo motor from Bosch Rexroth. This motor delivers a nominal speed of 6000 min⁻¹ for rapid-response motion control. It offers 0.72 Nm continuous torque, 5.9 A standstill current, and 0.46 Nm/A torque constant with integrated tachofeedback. Its IP65 protection ensures rugged, sealed operation.
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We offer a repair service for the MAC041B-0-BS-4-E/050-B-1/WI671LV.
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