A20B-8101-0840 FANUC PCB Circuit Board

The A20B-8101-0840 is a FANUC PCB / circuit board used in compatible FANUC CNC equipment. It is an electronic board component for CNC system or drive-related applications, depending on the original machine configuration.

This model is supplied as a FANUC circuit board / CNC PCB, not a complete CNC control system or complete drive unit. Correct board number confirmation, connector layout checking, system or drive compatibility verification, and professional testing are important before replacement.

Worldwide Shipping & REACO CNC Service

• Worldwide Shipping: We can ship worldwide by DHL, UPS, FedEx, or other available logistics channels.
• Fast Handling: In-stock items can usually be shipped within 1-2 working days after payment.
• 100% Tested Before Delivery: Each qualified PCB is tested or checked before shipment. Product photos or a test video can be sent before delivery when required.
• REACO Warranty: New or refurbished products usually include a 1-year warranty, and used 90% new products usually include a 3-month warranty.
• Free Technical Support: Our team can help with basic model confirmation, board matching, and replacement guidance.

Product Information

Product Application

The FANUC A20B-8101-0840 circuit board is used for FANUC CNC equipment maintenance and repair. It may be required when the original PCB is damaged, unstable, burnt, corroded, or causing CNC system or drive-related faults.

If your original FANUC board has communication problems, abnormal machine operation, no response, alarm issues, or visible component damage, this board may be considered as a replacement after confirming the full board number, machine configuration, connector layout, and alarm information.

Quality Control and Testing

For FANUC circuit boards, careful checking is very important before shipment because PCB condition may directly affect CNC system operation, drive communication, signal control, and machine reliability. REACO CNC checks qualified products carefully and can provide real product photos or a test video before delivery when required.

Our goal is to help customers receive reliable CNC spare parts with clear product information, careful inspection, responsive after-sales support, and practical technical assistance.

Compatibility Confirmation

Before ordering, please confirm that the full board number on your original PCB is A20B-8101-0840. Similar FANUC boards may have different connector layouts, hardware versions, applicable CNC systems, drive models, or compatibility requirements.

If you are not sure whether this FANUC PCB is suitable for your machine, please send photos of the original board label, full machine or system model, connector side photos, and alarm information. REACO CNC can help check the details before purchase.

FAQ

Q: What is A20B-8101-0840?

A20B-8101-0840 is a FANUC PCB / circuit board used in compatible FANUC CNC equipment.

Q: Is A20B-8101-0840 a complete CNC system?

No. A20B-8101-0840 is a PCB / circuit board component, not a complete CNC control system or complete drive unit.

Q: Can this board be used for FANUC CNC repair?

Yes. This board can be used for compatible FANUC CNC equipment repair after confirming the original board number and machine configuration.

Q: Can REACO CNC test this FANUC PCB before shipment?

Yes. REACO CNC tests or checks qualified circuit boards before delivery. Product photos or a test video can be sent before shipment when required.

Q: What warranty does REACO CNC provide?

For new or refurbished products, REACO CNC usually provides a 1-year warranty. For used 90% new products, the warranty is usually 3 months. The final warranty term depends on the quotation and order condition.

Q: Can you help confirm compatibility before purchase?

Yes. Please send the original board photos, full board number, CNC system or drive model, connector side photos, and alarm details. We will help check whether this model is suitable for your machine.

Q: Do you also provide FANUC PCB repair service?

Yes. REACO CNC provides FANUC PCB sales and repair support. If your original board is faulty, you can contact us for replacement or repair options.