MAC025C-0-QS-2-E/040-B-1
MAC AC Servo Motors
The Bosch Rexroth Indramat MAC025C-0-QS-2-E/040-B-1 from the MAC AC Servo Motors series operates on 230 V and 50 Hz supplies to deliver a 1.2 kW Power Output at a nominal speed of 3500 min⁻¹. With an Efficiency of 88% and a Current Rating of 5 A, this servo motor balances power delivery and energy economy. Its electromagnetic circuit features a Torque Constant at 20°C of 0.370 Nm/A, a Windings Inductance of 9.1 mH, and a Windings Resistance at 20°C of 9.6 Ohm for predictable, linear control across the operating range. These electrical characteristics ensure smooth torque generation and precise current-to-torque conversion for high-performance motion control applications.
The motor’s mechanical design leverages a Rotor Moment of Inertia of 2.4 × 10⁻⁴ kgm² to enable rapid acceleration and deceleration, meeting the demands of dynamic positioning tasks. It provides a Continuous Torque at Standstill of 0.8 Nm (1.0 Nm with surface cooling) while drawing Continuous Current at Standstill of 2.2 A (2.7 A with surface cooling). For peak demand conditions, the device supports a Maximum Peak of Pulse Current of 12 A, ensuring reliable short-term overload capability. Thermal management is handled by a Thermal Time Constant of 30 min (15 min with surface cooling), maintaining stable winding temperatures under extended duty.
Weighing just 3.2 kg, the MAC025C-0-QS-2-E/040-B-1 offers a compact footprint for integration into tight machine spaces without compromising structural robustness. Its high torque density and optimized thermal characteristics make it ideal for applications requiring frequent start-stop cycles and precise speed regulation. This servo motor delivers dependable, repeatable performance across a wide array of industrial automation tasks.
Technical Specifications
Continuous Current at Standstill
2.2 A (2.7 A with surface cooling)
Continuous Torque at Standstill
0.8 Nm (1.0 Nm with surface cooling)
Current Rating
5A
Efficiency
88%
Frequency
50 Hz
Mass
3.2 kg
Maximum Peak of Pulse Current
12 A
Nominal Motor Speed
3500 min⁻¹
Power Output
1.2 kW
Rotor Moment of Inertia
2.4 × 10⁻⁴ kgm²
Thermal Time Constant
30 min (15 min with surface cooling)
Torque Constant at 20°C
0.370 Nm/A
Voltage
230 V
Windings Inductance
9.1 mH
Windings Resistance at 20°C
9.6 Ohm
Frequently Asked Questions
What enables the motor to deliver proportional response in current-controlled systems?
Its 0.370 Nm/A torque constant supports linear torque-to-current output. This provides accurate force control in servo-regulated operations.
How does this motor behave during sharp acceleration demands or short bursts?
It supports peak pulse currents up to 12 A for transient torque loads. This prevents motion lag during high-speed shifts or abrupt actuation.
What level of inductive behavior should be expected when tuning the drive?
It features 9.1 mH inductance, which stabilizes current ripple in switching drives. This allows smoother torque transitions and improved control accuracy.
How does MAC025C-0-QS-2-E/040-B-1 support high-speed automation tasks?
It delivers 1.2 kW at a nominal speed of 3500 min⁻¹. This ensures consistent motion in rapid, continuous operation systems.
How does MAC025C-0-QS-2-E/040-B-1 perform in high-duty cycle applications with limited energy budgets?
It operates at 88% efficiency, ensuring minimal energy loss during sustained load. This improves thermal behavior and reduces overall power consumption.
Internal Product Review
The model MAC025C-0-QS-2-E/040-B-1 from Rexroth Indramat is a servo motor delivering 1.2 kW at a nominal speed of 3500 min⁻¹. It features 0.370 Nm/A torque constant, 9.1 mH inductance, and supports peak pulse currents up to 12 A. The model ensures excellent energy utilization and thermal stability with an 88% efficiency rating.
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