Product Description:

The MAC071C-0-GS-4-C/095-A-0/J521LX is an AC servo motor built by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It serves as the rotary actuator in analog drive loops, transforming commanded current into regulated torque and speed so that pick-and-place heads, form-fill-seal machines, and indexing tables can position loads accurately. This operating role suits machinery that requires fast starts, smooth speed control, and repeatable motion during continuous production. The motor can support both positioning tasks and speed-regulated movement in equipment that uses external drive electronics.

The rotor is optimized for a nominal shaft speed of 6000 rpm, allowing rapid cycle times while maintaining positional repeatability. A centering diameter of 95 mm aligns the flange to gearboxes or mounting fixtures without additional adapters. Heat is removed through natural convection, so no fan or liquid jacket is required. For velocity feedback, the motor provides a standard tacho signal of 1.5 V/1000 rpm. Winding code GS identifies the electrical characteristics that must match the drive amplifier. Incremental or absolute encoder heads can be added to the tachogenerator interface, allowing fine positioning and conventional speed-loop operation from the same motor package.

This model is supplied with no blocking brake, so vertical axes require an external holding device when power is removed. Power and feedback conductors exit through a connector on side A, which helps keep cable routing clear in machine layouts that favor that connection direction. The motor uses frame size 071, which provides moderate inertia for fast acceleration and controlled deceleration. Its medium housing length C balances torque output against installation depth. Classified as a motor for analog drives, it pairs directly with voltage-controlled servo amplifiers that use tachogenerator feedback to close the speed loop.