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For Industrial Equipment (E.G., PLC Modules, Inverters..), Shipping Cost Varies By Package Weight/Volume And Delivery Location. Contact Our Sales Team For A Customized Shipping Solution And Quote
Payment Terms
L/C,D/A,D/P,T/T,Western Union
System Compatibility
Fanuc 0i-MD, 0i-TD, 16i/18i/21i Models
Shipping Term
International Express（DHL/FEDEX/TNT/UPS/ARAMEX）/Sea Freight / Air Freight / International Special Line
For Industrial Equipment (E.G., PLC Modules, Inverters..), Shipping Cost Varies By Package Weight/Volume And Delivery Location. Contact Our Sales Team For A Customized Shipping Solution And Quote
Payment Terms
L/C,D/A,D/P,T/T,Western Union
System Compatibility
Fanuc 0i-MD, 0i-TD, 16i/18i/21i Models
Shipping Term
International Express（DHL/FEDEX/TNT/UPS/ARAMEX）/Sea Freight / Air Freight / International Special Line
Original Fanuc CNC Main Board A16B A20B Series Motherboard Replacement
Revitalize your Fanuc CNC systems with our high-reliability main control boards and PCBs. As the core brain of precision machining, these boards are critical for axis control, PLC logic, and HMI communication. We specialize in providing authentic Fanuc components for the 0i-B/C/D and 16i/18i/21i series. Each board undergoes rigorous diagnostic testing to ensure it meets original factory performance standards. Whether you are performing a scheduled upgrade or an emergency repair, our extensive stock of A16B and A20B series boards is your solution to minimizing machine downtime.
Product Highlights
100% Guaranteed Authenticity: Genuine Fanuc parts with full technical traceability.
Tested & Certified: Every PCB is bench-tested with actual CNC controllers for logic and communication integrity.
Wide Series Compatibility: Extensive coverage for legacy 16i/18i/21i systems and modern 0i series.
Fast Global Shipping: Minimize critical downtime with express delivery to the USA, Europe, and Asia.
Cost-Effective Solutions: Choice of "Brand New Surplus" or "Grade-A Refurbished" units to fit your maintenance budget.
Expert Support: Professional technical guidance for part number verification and installation.
Automotive Production: Managing high-volume engine part manufacturing lines.
Die & Mold Industry: Driving precision spark erosion and EDM machines.
Robotic Integration: Serving as the master controller for Fanuc R-J3iB/iC systems.
General Fabrication: Retrofitting and repairing legacy CNC lathes and grinders.
Frequently Asked Questions
Q: How do I know if the PCB part number is compatible with my machine?
A: We recommend checking the A16B/A20B number on your existing board. If you're unsure, send us a photo of the label, and our engineers will verify the version.
Q: Are refurbished boards reliable?
A: Yes. Our refurbished boards are cleaned, repaired with high-quality components, and undergo full diagnostic load testing. They often last as long as new units at a fraction of the cost.
Q: What is the warranty on these Fanuc boards?
A: We offer a 12-month warranty for New Surplus items and a 6-month warranty for Refurbished units.
Q: What should I do if the machine shows a "System Alarm" after installation?
A: Most alarms are due to incorrect parameter settings or unseated memory modules. Contact our technical support for a step-by-step troubleshooting guide.
Q: Do these boards include the memory (SRAM/FROM) modules?
A: Usually, mainboards are sold without memory modules unless specified. You can easily swap your old modules onto the new board.
