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Brand | Fanuc |
Status | NEW/USED |
Warranty | 12 months/3 months |
Parameters | α1000iA |
High resolution | Fanuc motor encoders provide precise position feedback to ensure high-precision control. |
Fast response | Real-time signal transmission improves the system's dynamic response capability. |
Durable and reliable | Industrial-grade design, vibration-resistant, high-temperature-resistant, and adaptable to harsh environments. |
The FANUC A860-2020-T321 Servo Encoder is a high-accuracy pulse coder designed for FANUC Alpha and Alpha i Series servo motors. This encoder ensures precise position and speed feedback, enabling smooth, accurate, and reliable control in CNC systems and industrial automation.
Manufactured in Japan to meet FANUC’s rigorous quality standards, the A860-2020-T321 offers exceptional signal stability, mechanical durability, and long operational life. It is widely used in CNC machining centers, lathes, milling machines, and robotic systems, providing a key link between servo motion and CNC control logic.
Whether for new installations or maintenance replacements, this encoder guarantees optimal performance and compatibility with FANUC drives and control units.
High-Precision Feedback Control
Offers superior resolution and response time, essential for high-speed CNC motion and spindle synchronization.
Fully Compatible with FANUC Alpha / Alpha i Systems
Designed for direct integration with FANUC servo motors and amplifier modules — plug-and-play replacement.
Durable Japanese Engineering
Resistant to vibration, oil mist, and temperature fluctuations, ensuring consistent feedback accuracy in demanding environments.
Reliable Pulse Output
Delivers clean, stable signals that maintain position accuracy even during rapid acceleration or deceleration cycles.
Easy Installation and Maintenance
Shaft-mounted encoder design allows for quick replacement with minimal downtime, maintaining system uptime.
The A860-2020-T321 encoder is engineered for use in CNC and robotic motion control systems that demand high positioning accuracy and responsive speed feedback. Typical applications include:
CNC machining centers and lathes
Milling, grinding, and drilling machines
FANUC robotics and automation systems
Servo and spindle drive feedback loops
High-precision motion axes
It ensures tight feedback loops and smooth axis synchronization, critical for achieving high machining accuracy and surface finish quality.
Ensure proper alignment and shaft coupling to prevent encoder misreading or premature wear.
Use shielded FANUC-certified cables to minimize electrical noise interference.
Regularly inspect for contamination or oil ingress in harsh machining environments.
Check encoder signal output via CNC diagnostic parameters to ensure healthy feedback.
Avoid mechanical shock during installation to protect the optical sensing components.
By following these best practices, you can extend the encoder’s service life and maintain optimal servo performance.
This encoder functions as a pulse coder, translating the servo motor’s rotational position into precise digital signals. These signals enable the CNC controller to track axis position and speed in real-time.
It is designed specifically for FANUC Alpha and Alpha i Series servo motors. Always verify motor compatibility using the motor nameplate or system manual before replacement.
Symptoms include axis drift, irregular feed motion, or feedback-related alarms on the CNC system. Checking encoder signal integrity through diagnostics can help identify the issue.
Yes. The A860-2020-T321 can be replaced independently, as long as the mechanical and electrical specifications match. Ensure the encoder is properly aligned and configured.
While both serve similar functions, the T321 model typically offers enhanced resolution and is optimized for later-generation Alpha servo systems, providing improved feedback precision.
As a trusted global supplier of authentic FANUC automation parts, FANUCBUY provides guaranteed quality, competitive pricing, and fast worldwide delivery.
When purchasing from us, you benefit from:
100% Genuine FANUC OEM Products
Comprehensive Testing & Quality Control
12-Month Warranty Coverage
Global Express Shipping (DHL, FedEx, UPS)
Expert Technical Support from FANUC-certified engineers
We help manufacturers maintain precision, reduce downtime, and ensure long-term CNC reliability with genuine FANUC components — including servo motors, encoders, amplifiers, and control modules.
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