Product Description:

The AM8551-0G20-0000 is a synchronous servo motor manufactured by Beckhoff and included in the AM Synchronous Servo Motors series. Inside an automation cell, it operates as a high-performance rotary actuator for positioning tasks, coordinated multi-axis interpolation, and cycle-time-critical sequences on packaging, pick-and-place, and machining stations. Its electromagnetic design supports rapid acceleration and repeatable motion, and it works as part of a closed-loop axis system that responds quickly to changing command values and load conditions.

Mechanically, the motor attaches via a 104 mm flange that mates to ISO square interfaces and keeps the stator concentric with driven equipment. A smooth shaft terminates the rotor, allowing clamp couplings to be fitted without keyway tolerances or fretting. Power and feedback lines exit through a rotatable angular connector or terminal box, permitting cable routing in the preferred direction for each machine layout. Because the rotor is built with an increased mass moment of inertia, the axis can run more steadily with heavier loads and can resist abrupt speed changes from the driven mechanism. The unit is supplied without a holding brake, so static load retention must come from drive torque or an external brake.

Position feedback is produced by an OCT multi-turn encoder that reports absolute position over many revolutions, supporting immediate operation after power is restored. The stator winding uses winding code G, which matches the electrical characteristics expected by compatible Beckhoff AX5000 drives. The motor has an overall length code 1, which keeps the housing short where installation depth is limited. This version is the standard execution, so it uses the regular configuration for this motor type without adding special mechanical features or alternate connection hardware.