AM8551-0EG1-0000 Beckhoff
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The Beckhoff AM8551-0EG1-0000 is a synchronous servo motor from the AM Synchronous Servo Motors series. It features a 104 mm flange size, a smooth shaft design, and a rotatable angular connector or terminal box. The motor includes a 24 V holding brake, offers holding torque from 9 Nm to 20 Nm depending on length, and has SIL 2 safety integrity level.
Internal Product Review
The AM8551-0EG1-0000 is a Beckhoff synchronous servomotor built for stable motion control, with increased mass moment of inertia and a smooth shaft. The 24-bit OCT single-turn feedback supports precise positioning and dependable signal quality. SIL 2 capability and a 24 V holding brake make this unit an excellent choice for safety-conscious servo applications.
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Product Description:
The AM8551-0EG1-0000 belongs to the AM Synchronous Servo Motors series manufactured by Beckhoff. As a synchronous servo motor, it generates controlled torque for positioning and speed-regulated duties in automated assembly cells, packaging lines, and material-handling axes. Integrated electronic feedback allows the drive to monitor rotor position, while the mechanical flange provides a secure connection to driven equipment. These features allow the unit to close the motion loop inside Beckhoff drive systems and move loads precisely within industrial automation equipment.
Braking force is supplied by a coil rated at 24 V DC, so the shaft remains locked whenever the drive issues a hold command or power is removed. Position data return through OCT single-turn sensing at 24-bit resolution, dividing one mechanical revolution into more than sixteen million steps for fine commutation. Mounting follows an IEC square pattern with a flange width of 104 mm, easing attachment to gearboxes or belt-drive assemblies. Depending on the selected stator length, the electromagnetic package delivers a static holding torque range of 9 Nm to 20 Nm, which is sufficient to restrain midsized loads. Functional safety conformity reaches SIL 2, enabling inclusion in safety-related stop functions without requiring additional external encoders.
This variant has an increased mass moment of inertia, allowing the rotor to damp speed fluctuations when loads vary cyclically. Power and feedback leads exit through a rotatable angular connector, so the cable outlet can be aligned with drag chains or conduits. The output uses a smooth shaft, supporting friction-fit couplings in applications where backlash must be minimized. The motor uses winding code E, which matches its voltage constants to Beckhoff AX-series inverters. It carries overall length code 1 and is supplied in the standard version within the Synchronous Servomotors product family.
