The Bosch Rexroth Indramat MAC025C-0-QS-4-E/040-B-0/ WI673LV is a precision-engineered AC servo motor from the MAC AC Servo Motors series, designed specifically for high-performance industrial automation. This 3-phase servo motor delivers exceptional responsiveness through a closed-loop control system that supports both position and synchronous operation. Its rugged construction and advanced electromagnetic induction design ensure reliable conversion of electrical energy into controlled mechanical motion. With integrated real-time feedback, the motor minimizes deviation from commanded profiles, providing the accuracy required in robotic systems, conveyor mechanisms, and rotary tables. Its classification as "Servo performance" underscores its capability to follow complex motion commands with high fidelity.
Detailed technical specifications define the MAC025C-0-QS-4-E/040-B-0/ WI673LV servo motor’s advanced performance envelope. The motor supports continuous torque at standstill of 1.5 Nm (1.7 Nm with surface cooling) and a continuous current at standstill of 3.6 A (4.0 A with surface cooling). It withstands a maximum peak of pulse current of 19 A for transient loads. The torque constant at 20°C of 0.42 Nm/A reflects efficient energy conversion, while the voltage constant of the tacho-generator at 0.0143 Vs/rad (1.5 V/1000 min-1) provides precise speed feedback. Winding characteristics include a winding resistance at 20°C of 4.1 Ohm and a winding inductance of 3.9 mH, both of which influence current dynamics and thermal behavior. The rotor moment of inertia of 2.4 x 10^-4 kg·m^2 ensures rapid acceleration and deceleration. Its thermal time constant of 30 min (15 min with surface cooling) controls heat dissipation under sustained operation. The motor’s finish includes a housing coat of Black prime coat (RAL 9005) and the unit carries an Additional Variant Identifier S001.
Operational performance of the MAC025C-0-QS-4-E/040-B-0/ WI673LV is optimized for dynamic motion tasks. The 3-phase design delivers smooth torque delivery across the speed range, and its closed-loop feedback minimizes overshoot during acceleration and deceleration. Surface cooling enhances continuous torque and current handling without compromising the thermal time constant, enabling longer duty cycles under heavy loads. The integrated tacho-generator feedback enables stable rotational control, reducing speed ripple in synchronous operation. Robust surge tolerance up to the maximum peak of pulse current ensures consistent performance during rapid direction changes.
This servo motor integrates seamlessly with Bosch Rexroth Indramat drive controllers and industrial network interfaces, supporting standard feedback protocols for plug-and-play integration. Its precise synchronization capabilities make it ideal for coordinated multi-axis motion systems in CNC machining, assembly robots, pick-and-place equipment, and automated conveyor lines. The compact design of the MAC AC Servo Motors series enables installation in space-constrained machinery, while the advanced thermal and electrical specifications ensure reliable operation in harsh factory environments. Its engineering pedigree and support resources from Bosch Rexroth Indramat provide a comprehensive solution for demanding automation applications.
Additional Variant Identifier
S001
Continuous current at standstill
3.6 A (4.0 A with surface cooling)
Continuous torque at standstill
1.5 Nm (1.7 Nm with surface cooling)
Equipment Type
Servo performance
Housing Coat
Black prime coat (RAL 9005)
Maximum peak of pulse current
19 A
Operation
Position/Synchronous operation
Phase
3-phase
Rotor moment of inertia
2.4 x 10⁻⁴ kgm²
Thermal time constant
30 min (15 min with surface cooling)
Torque constant at 20°C
0.42 Nm/A
Type
AC Servo Motor
Voltage constant of the tacho-generator
0.0143 Vs/rad, 1.5 V/1000 min⁻¹
Winding inductance
3.9 mH
Winding resistance at 20°C
4.1 Ohm