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AM8561-0J21-0000 Beckhoff

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The Beckhoff AM8561-0J21-0000 is part of the AM Synchronous Servo Motors series and has a flange size of 142 mm. This standard version servo features a smooth shaft design, rotatable angular connector or terminal box, and an OCT multi-turn feedback type. It includes a 24 VDC holding brake with a holding torque ranging from 20 Nm to 36 Nm depending on the length, and offers increased mass moment of inertia.

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Product Description:

The AM8561-0J21-0000 is a synchronous servo motor manufactured by Beckhoff and placed within the AM Synchronous Servo Motors series. As a rotary drive component, it converts electrical energy into controlled mechanical motion for axis positioning, speed regulation, and cyclic tasks in assembly lines, packaging equipment, and CNC stations. This operating role suits machinery that requires repeatable starts, stops, and speed changes during automated cycles. The model is supplied in the Standard version and uses the series mechanical envelope intended to support medium- to high-inertia loads. When paired with a Beckhoff drive controller, it completes a closed-loop automation chain from PLC command to shaft rotation.

The holding brake and external control circuits share a supply of 24 VDC. Power, feedback, and brake lines exit through a rotatable angular connector or terminal box, so cable routing can be aligned to the available installation space. This arrangement helps the motor fit installations where cable exit direction must be adjusted around frames, guards, or nearby components. Position feedback is supplied by an OCT multi-turn encoder, which sends absolute position data to the drive for immediate commutation after power-up. The mounting flange measures 142 mm, providing a standardized interface for direct coupling to gearboxes or machine frames. An integrated holding brake is included to keep the axis stationary when drive torque is removed.

The motor uses the series variant with increased mass moment of inertia, making it suitable for mechanisms that require smooth acceleration of sizable loads. This characteristic can help stabilize motion in applications where the connected load changes direction frequently or resists rapid speed shifts. Its output uses a smooth shaft configuration, which avoids a keyway and helps limit backlash at the coupling. The built-in brake provides static holding torque in the 20 Nm to 36 Nm range. Electrical behavior is linked to winding code J, which matches the motor’s resistance, inductance, and rated speed set to compatible Beckhoff drive amplifiers. The overall length code 1 keeps the housing compact.

Brake Voltage
24 VDC
Connection
Rotatable angular connector or terminal box
Feedback Type
OCT multi-turn
Flange Size
142 mm
Holding Brake
24 V holding brake
Holding Torque
20 Nm to 36 Nm (dependent on length)
Motor Series Type
Increased mass moment of inertia
Overall Length Code
1
Product Series
Synchronous Servomotors
Shaft Design
Smooth shaft
Version
Standard
Winding Code
J

Frequently Asked Questions about AM8561-0J21-0000:

Q: Does the AM8561-0J21-0000 servo motor come equipped with a holding brake?

A: The AM8561-0J21-0000 servo motor includes a 24 V holding brake for secure positioning when powered off.

Q: What type of feedback does the AM8561-0J21-0000 motor use?

A: This model uses OCT multi-turn feedback, providing precise multi-turn position detection.

Q: What is the flange size of the AM8561-0J21-0000 servo motor?

A: The AM8561-0J21-0000 has a flange size of 142 mm, which supports larger mounting configurations.

Q: What shaft design is featured on the AM8561-0J21-0000 servo motor?

A: The shaft design of this motor is a smooth shaft, enabling direct coupling with compatible devices.

Q: What is the holding torque range for the AM8561-0J21-0000 servo motor?

A: Holding torque for this model ranges between 20 Nm and 36 Nm depending on the motor length.


Internal Product Review

  • ‘‘The AM8561-0J21-0000 is a Beckhoff synchronous servomotor with increased mass moment of inertia and OCT multi-turn feedback. A rotatable angular connector or terminal box simplifies installation, and the 24 V holding brake supports dependable axis retention. Holding torque from 20 Nm to 36 Nm makes the unit a strong choice for controlled motion applications.’’

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