AM8571-0N91-1001 Beckhoff
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The Beckhoff AM8571-0N91-1001 is a synchronous servo motor from the AM Synchronous Servo Motors series featuring a 194 mm flange size and a smooth shaft design. It has a 24 VDC holding brake with a holding torque of 70 Nm and is built with an increased mass moment of inertia. This special version motor is identified by winding code N and an overall length code of 1.
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Product Description:
The AM8571-0N91-1001 belongs to the AM Synchronous Servo Motors series from Beckhoff. This synchronous servo motor drives rotary axes in packaging lines, pick-and-place heads, and similar motion systems that require accurate speed and position control. In industrial automation, it converts electrical energy from a compatible drive into mechanical torque on demand. This conversion gives machinery closed-loop positioning without relying on pneumatic cylinders or hydraulic systems, which can reduce maintenance requirements. The servo drive uses motor feedback to regulate torque, velocity, and rotor position as operating loads change.
The motor mounts to gearboxes or machine frames through a 194 mm square flange, allowing the mounting pattern to align with large IEC interfaces. Static loads are secured by an integrated 24 VDC holding brake that receives low-voltage power from the control cabinet. The brake engages automatically when power is removed and releases after the control system reapplies its supply, helping prevent unwanted movement during emergency stops or idle periods. During operation, the servo can counteract load peaks up to 70 Nm, providing reserve capacity for high-inertia tool changes and rapid indexing movements. The rotor has an increased mass moment of inertia, which helps smooth speed fluctuations in indexing tables and other applications with changing loads. Output power is transmitted through a smooth shaft, allowing the use of shrink-fit couplings or synchronous belt pulleys without the stress concentrations associated with a keyway.
The motor has a mechanical length class of 1, allowing it to fit installations with restricted axial space while retaining its larger-diameter stator. Its compact depth can simplify integration where the machine frame limits the available clearance behind the mounting surface. This model is a special version, with sealing, paint, or connector options that differ from the standard configuration to meet particular installation requirements. Its electrical characteristics correspond to winding code N, so the connected drive must use matching current limits and velocity constants. Correct motor parameters allow the drive to regulate current accurately during acceleration, steady-speed operation, and controlled deceleration.
