Product Description:

Bosch Rexroth Indramat builds the MAC071B-0-PS-4-C/095-A-0, an AC servo motor in the MAC AC Servo Motors series. The unit is a motor for analog drives that supplies speed-regulated rotary power to positioning axes, assembly cells, and material-handling equipment. In industrial automation, it couples with legacy analog servo amplifiers, converting electrical commands into controlled mechanical motion while maintaining feedback fidelity through its integrated tachometer or encoder. Its B-length stator balances torque density with thermal performance, and this configuration supports moderate shaft inertia within compact machine layouts.

The electrical winding code PS matches the phase resistance and inductance to compatible MAC analog drive modules. Its nominal speed of 4000 rpm allows rapid cycle times for pick-and-place tooling under rated sinusoidal excitation. A centering diameter of 95 mm provides the reference surface for flange mounting, keeping the housing concentric to connected gear or belt transmissions. Heat is removed by natural convection, eliminating the need for external blowers and permitting installation inside sealed machine frames. The power leads exit through a connector on side A, so cables can be routed along the same side as many legacy MAC amplifiers.

The motor has no blocking brake, so axis holding during power loss must rely on drive torque or external clamps. The feedback channel can use incremental or absolute encoder feedback, enabling either pulse counting or absolute position capture for the control loop. Within the tacho circuit, the generator delivers 1.5 V/1000 rpm, providing proportional velocity feedback for analog speed regulators. Frame size 071 keeps the overall diameter small, while the stator length supports higher continuous torque without enlarging the machine footprint.