MAC63D-0-JS-3-C/95-A-1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat MAC63D-0-JS-3-C/95-A-1 is a motor from the MAC AC Servo Motors series designed for analog drives. It features a nominal speed of 3500 min^-1, a standstill torque of 2.7 Nm, and a holding brake torque of 3 Nm. The motor operates with a phase current of 4.2 A and has IP65 protection with natural convection cooling.
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Product Description:
The MAC63D-0-JS-3-C/95-A-1 is an AC servo motor produced by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Designed for analog drives, it provides closed-loop velocity and torque control for positioning tables, conveyors, and general factory automation axes. The unit integrates a tachogenerator on a second shaft end, allowing legacy analog amplifiers to retrieve real-time speed data without digital conversion. Its sealed housing and side-mounted power connector support straightforward installation in compact machinery while protecting internal components from contaminants commonly found in industrial settings.
The motor has a nominal speed of 3500 rpm when the windings receive the rated phase current of 4.2 A. Its electromagnetic coupling has a torque constant of 0.53 N·m/A, so shaft torque increases proportionally with the supplied current. During standstill, the amplifier may supply 5.1 A to produce 2.7 N·m of continuous torque, while short acceleration cycles are supported by a peak pulse current of 27 A. Tacho feedback supplies 1.5 V per 1,000 rpm to the controller, enabling the analog amplifier to monitor motor speed in real time. The windings have an inductance of 2.5 mH and a resistance of 1.9 Ω, which affect current rise time and drive tuning.
The motor housing has an IP65 protection rating, guarding the stator windings against dust and low-pressure water jets while the motor is cooled by natural convection. A machined pilot diameter of 95 mm centers the flange on gearboxes or mounting plates, and the power conductors exit on side A to keep cable bends away from feedback devices. The motor has a thermal time constant of 30 minutes, allowing temperature monitoring to account for gradual heat accumulation during operation. For static holding conditions, the integrated brake clamps the shaft with 3 N·m of holding torque when the axis must remain stationary.
Frequently Asked Questions about MAC63D-0-JS-3-C/95-A-1:
Q: How is the MAC63D-0-JS-3-C/95-A-1 servo motor cooled?
A: The MAC63D-0-JS-3-C/95-A-1 uses natural convection for cooling, operating without the need for external fans.
Q: What type of feedback system is included in the MAC63D-0-JS-3-C/95-A-1 servo motor?
A: This motor features tachofeedback along with a second shaft end.
Q: What is the holding brake torque for the MAC63D-0-JS-3-C/95-A-1 motor?
A: The holding brake on this model provides 3 Nm of torque.
Q: What is the protection class of the MAC63D-0-JS-3-C/95-A-1?
A: The protection class for this motor is rated at IP65.
Q: What is the nominal speed of the MAC63D-0-JS-3-C/95-A-1 servo motor?
A: The nominal speed rating for this servo motor is 3500 min^-1.
