Product Description:

The MAC112B-0-GD-2-F/130-B-1/WI581BX is an AC servo motor produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Intended for analog drives, it converts regulated three-phase power into precise rotary motion for positioning and velocity control in automated machinery. The unit can be mounted directly to mechanical transmissions, enabling a drive controller to execute repeatable motion profiles for pick-and-place stations, tooling spindles, and conveyor axes. With an integrated sensing channel and a passive cooling layout, the motor supports continuous production cycles while keeping maintenance requirements low.

An integral blocking brake rated at 45 Nm secures the shaft during power-off or emergency stops, eliminating the need for external clamps on vertical axes. Accurate mechanical alignment is simplified by a 130 mm centering diameter that mates with standardized flange bores. Heat is dissipated through natural convection, so no additional fans or liquid circuits are necessary in the cabinet or on the machine frame. The speed loop is closed by internal tacho feedback, which relays a proportional voltage signal to the amplifier for real-time velocity correction. Power is supplied through a single connector on side B, keeping the opposite face unobstructed for coupling to the driven load and easing cable routing inside tight enclosures.

Performance consistency is further enhanced by the motor’s increased smooth-running quality, which minimizes cyclic speed ripple during slow or load-varying operation. For position tasks, an incremental encoder with standard mounting delivers pulse feedback suitable for high-resolution interpolation in modern servo controllers. The mechanical frame size is 112, and the electromagnetic configuration follows winding code GD, allowing reference to predefined current and voltage tables when pairing the motor with an analog amplifier. Length designation B balances rotor inertia with stack power, providing a compact footprint without sacrificing continuous torque capability.