The Bosch Rexroth Indramat MAC093B-0-GS-4-C/110-B-0/WI518LV/S009 is a high-performance servo motor from the MAC AC Servo Motors series, designed for precision industrial automation. It features a permanent magnet rotor and electronic commutation, delivering dynamic response and maintenance-free operation. This model includes an incremental encoder with standard mounting and is not equipped with a blocking brake, ensuring reliable feedback without added mechanical complexity. The motor’s power connector is located on Side B, simplifying cable routing in compact installations. The robust design supports IP65 protection and built-in thermo-switches to prevent overheating.
Technical specifications for the MAC093B-0-GS-4-C/110-B-0/WI518LV/S009 highlight its electrical and mechanical capabilities. The servo motor supports a continuous current at standstill of 38 A and delivers a continuous torque at standstill of 14.5 Nm. It can withstand a maximum peak of pulse current of 192 A for rapid acceleration profiles. The nominal speed of 4000 rpm and torque constant at 20 °C of 0.388 Nm/A ensure accurate speed-to-torque conversion. The rotor’s moment of inertia of 0.0029 kg·m² enables quick dynamic response. Electrical characteristics include a windings inductance of 2 mH and windings resistance at 20 °C of 0.136 Ω, balancing power efficiency with thermal performance.
Operational features emphasize the motor’s thermal and mechanical resilience. The thermal time constant of 50 min supports sustained operation under high load without temperature runaway. Natural convection cooling type (indicated by “0” in the part number) removes the need for external fans, reducing maintenance. The compact motor size 93 and motor length B yield a lightweight design, with a weight of 16.5 kg that simplifies mounting and minimizes inertia on drive axes. Built-in thermo-switches provide instantaneous shutdown if internal temperatures exceed safe limits. The maintenance-free brushless construction and lifelong bearing lubricants ensure long service intervals.
System integration is streamlined by consistent interface standards across the MAC AC Servo Motors series. The Side B power connector and standard incremental encoder facilitate quick installation and commissioning with common servo drives. The absence of a holding brake reduces installation complexity where external braking is handled by the drive or mechanical system. Target applications include packaging machinery, printing presses, robotic arms, transfer systems, and other precision automation platforms where high torque density, compact footprint, and reliable feedback are critical to system performance and uptime.
Continuous current at standstill
38 A
Continuous torque at standstill
14.5 Nm
Maximum peak of pulse current
192 A
Nominal Speed
4000 rpm
Rotor moment of inertia
0.0029 Kilogram Square Meter
Thermal time constant
50 Min
Torque constant at 20 °C
0.388 Nm/A
Weight
16.5 kg
Windings inductance
2 mH
Windings resistance at 20 °C
0.136 Ohms
AC Servo Motor
MAC
Motor Size
93
Motor Length
B
Cooling Type
Natural Convection