FANUC A20B-2004-038 Control Card – CNC Main Control Board for FANUC Series 0
When a CNC machine loses its main control card, the entire production line comes to a halt. Operators face unplanned downtime, missed delivery deadlines, and mounting repair costs — every hour without the right replacement part translates directly into lost revenue. The FANUC A20B-2004-038 is the critical control board that keeps FANUC Series 0 CNC systems running, managing core logic, I/O communication, and axis coordination. Without it, even the most capable machining center is reduced to an expensive paperweight.
The A20B-2004-038 occupies a foundational position within the FANUC Series 0 control architecture — one of the most widely deployed CNC platforms in global manufacturing. Introduced as part of FANUC’s proven A20B board family, this control card has earned a reputation for reliability across automotive, aerospace, mold-making, and general machining industries worldwide. Its continued demand in the aftermarket reflects the enormous installed base of FANUC Series 0 machines still operating in factories across Asia, Europe, and the Americas.
Technical Specifications
- Part Number: A20B-2004-038
- Brand: FANUC
- Series Compatibility: FANUC Series 0 (0-MA, 0-MB, 0-MC, 0-TA, 0-TB, 0-TC)
- Board Type: CNC Main Control Card / CPU Board
- Form Factor: PCB Module
- Weight: 560 g (approx.)
- Condition: Removed from working machine; functionally tested
- Application: CNC system logic control, I/O management, axis interpolation
Key Features & Benefits
- Direct OEM Replacement: Exact FANUC part number ensures plug-and-play compatibility with Series 0 systems — no parameter re-engineering required.
- Pulled from Working Equipment: Sourced from decommissioned machines that were operational at time of removal, reducing the risk of latent defects common in long-stored spares.
- Rapid Downtime Recovery: Stocked and ready to ship, enabling same-day or next-day dispatch to minimize production interruption.
- Cost-Effective Alternative: Significantly lower cost than new OEM procurement, with lead times measured in days rather than weeks or months.
- Broad Series 0 Coverage: Compatible across multiple Series 0 sub-variants, making it a versatile spare for facilities running mixed FANUC fleets.
Industry & Equipment Applications
- Automotive Manufacturing: Engine block machining centers, transfer lines, and multi-axis turning cells using FANUC Series 0 controls.
- Aerospace & Defense: Precision milling and boring machines requiring high-reliability CNC control boards.
- Mold & Die Industry: EDM and high-speed machining centers where Series 0 controls remain the standard.
- General Metal Fabrication: Lathes, machining centers, and grinding machines across job shops and OEM production facilities.
- Maintenance & Repair Operations (MRO): Ideal for MRO teams maintaining aging FANUC Series 0 fleets where new OEM boards are discontinued or cost-prohibitive.
System Integration & Compatible Parts
The A20B-2004-038 is designed to integrate within the FANUC Series 0 control cabinet ecosystem. Commonly paired or replaced alongside:
- FANUC A16B series I/O boards
- FANUC A20B power supply units
- FANUC Series 0 servo amplifier modules (A06B series)
- FANUC MDI/CRT display units compatible with Series 0
- FANUC A20B-1000 / A20B-2000 family control boards (for cross-reference)
If you are unsure about compatibility with your specific machine model, our technical team can assist with cross-referencing your machine’s electrical schematic and FANUC system configuration.
Our Quality Assurance Process
- Source Verification: All boards are traced to their original machine of removal, with documentation available on request.
- Visual Inspection: Each unit is inspected for physical damage, burnt components, corrosion, and connector integrity before listing.
- Functional Pull Confirmation: Boards listed as “removed from working machine” are confirmed to have been operational at the time of decommissioning.
- Secure Packaging: Anti-static packaging with foam cushioning to prevent transit damage to sensitive PCB components.
- Traceability: Each shipment includes a packing list with part number, condition description, and Konmask order reference.
How to Order
- Submit an inquiry via the Contact / Request a Quote form on this page.
- Provide your machine model, FANUC system version, and required quantity.
- Our team will confirm availability, compatibility, and provide a formal quotation within 1 business day.
- Upon order confirmation, we arrange export documentation and dispatch via your preferred freight method (DHL, FedEx, sea freight, etc.).
- Tracking information and commercial invoice are provided upon shipment.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on CNC, PLC, DCS, and servo drive components — not a generalist marketplace.
- Global B2B Export Experience: Serving buyers in Europe, Southeast Asia, the Middle East, and the Americas with compliant export documentation.
- Technical Pre-Sales Support: Our engineers can assist with compatibility verification, cross-referencing, and system integration questions.
- Competitive Lead Times: Most in-stock items ship within 1–3 business days of order confirmation.
- Transparent Sourcing: We clearly state the condition and origin of every part — no misleading “new” claims on used components.
Frequently Asked Questions
Q: Is the FANUC A20B-2004-038 new or used?
A: This unit is a used/surplus board removed from a working machine. It has not been refurbished or reconditioned. Condition is as-removed, with visual inspection completed.
Q: Which FANUC Series 0 models is this board compatible with?
A: The A20B-2004-038 is primarily associated with FANUC Series 0 controls including 0-MA, 0-MB, 0-MC (milling) and 0-TA, 0-TB, 0-TC (turning) variants. Please confirm your specific machine’s electrical diagram before ordering.
Q: Do you offer a warranty on this part?
A: As a used industrial component, this board is sold as-is based on its working-pull condition. We do not offer a standard warranty, but we stand behind our sourcing transparency. Contact us if you experience issues upon installation.
Q: Can you ship to my country?
A: Yes. We export globally. We handle commercial invoices, packing lists, and can assist with customs documentation. Contact us for freight options and estimated delivery times to your location.
Q: What if I need multiple units or have a recurring requirement?
A: We welcome bulk inquiries and long-term supply agreements. Contact our sales team to discuss volume pricing and reservation arrangements.
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Original Source: https://Konmask.com
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