The Bosch Rexroth Indramat MAC090A-0-ZD-4-C/110-A-1/WA610XX from the MAC AC Servo Motors series by Bosch Rexroth Indramat combines a Motor Size 90 frame with a robust winding ZD configuration and achieves a nominal speed of 2000 min-1 for precision motion control. Designed with a side-A power connector, this servo motor features a winding inductance of 1.9 mH that ensures stable current flow and fast current loop response. The length A construction accommodates standard mounting footprints, while the enclosed tacho generator and incremental encoder provide reliable position feedback. Built-in standard blocking brakes enhance safety during power-off conditions without adding significant inertia.
In operation, the motor delivers consistent performance with a torque constant at 20 degrees C of 0.51 Nm/A and maintains winding resistance at 20 degrees C of 1.85 Ohm for predictable thermal behavior. The rotor design yields a rotor moment of inertia of 20 x 10-4 kgm2, balancing dynamic response with load-handling capability. Thermal management is optimized by a thermal time constant of 45 minutes, allowing the motor to sustain peak demands. Maximum peak pulse currents reach 53 A, supporting short-term high-torque maneuvers without tripping drive protections. At a mass of 12.5 kg, the unit offers a high power-to-weight ratio suitable for medium-duty automation.
Built for industrial environments, the MAC090A model incorporates Natural Convection cooling and an IP65-compliant housing that defends against dust ingress and low-pressure water jets. F-class insulation permits safe winding temperatures up to 155 °C, extending motor life under continuous load cycles. Together with its compact footprint and integrated feedback options, this servo motor delivers reliable, low-maintenance operation for packaging, assembly, and pick-and-place systems.
length
A
mass
12.5 kg
maximum peak of the pulse current
53 A
nominal speed
2000 min-1
rotor moment of inertia
20 x 10-4 kgm2
thermal time constant
45 (30) 5) minutes
torque constant at 20 degrees C
0.51 Nm/A
winding
ZD
winding inductance
1.9 mH
winding resistance at 20 degrees C
1.85 Ohm
AC Servo Motor
MAC
Motor Size
90
Cooling Type
Natural Convection