AM8051-0E21-9000 Beckhoff
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The Beckhoff AM8051-0E21-9000 is a servo motor in the AM Synchronous Servo Motors series with a 104 mm flange size and a smooth shaft design. It features a 24 VDC holding brake, an OCT multi-turn feedback type, and offers a holding torque between 9 Nm and 20 Nm depending on the length. The motor includes a rotatable angular connector or terminal box for connection.
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Product Description:
The AM8051-0E21-9000 is a synchronous servo motor manufactured by Beckhoff and positioned within the AM Synchronous Servo Motors series. Designed for installation in packaging lines, pick-and-place axes, and general machinery, this motor supplies high-precision torque under servo drive control. Its purpose in an automation cell is to deliver repeatable positioning while occupying the flange and shaft envelope used for AM3x5x-compatible components. The motor is suited to applications that require accurate starts, stops, and speed changes without adding unnecessary mechanical bulk.
Electrical holding torque is secured by a dedicated brake that is fed with 24 VDC. This voltage keeps the brake released during motion and clamps the shaft when power is removed. Position feedback is provided through an OCT multi-turn encoder, enabling absolute position detection over multiple revolutions without an external battery. Mounting to gearboxes or machine plates is handled by a 104 mm square flange, a common dimension that aligns with IEC frame patterns. Power and signal conductors exit through a rotatable angular connector, allowing cable orientation to be set after the motor is fixed in place and helping reduce strain in tight cabinets. The drive end uses a smooth shaft, so torque is transmitted by friction couplings or shrink disks rather than keys.
Dynamic output is influenced by the holding brake, which delivers between 9 Nm to 20 Nm of static torque, depending on the overall motor length coded as 1. The thermal class and copper fill correspond to winding code E, letting the motor reach its rated current while balancing heat rise. This winding is paired with the AM Synchronous Servo Motors platform so the motor matches the intended flange and shaft arrangement used across that range. The unit is also intended for use with Beckhoff motion systems, and the encoder format supports absolute position reporting during controlled axis operation.
