Same-day processing, overnight shipping available! (Order by 5pm ET, M-F)
2-4 WEEKS LEAD TIME
24
24 MONTH REPAIR WARRANTY
ISO CERTIFIED QUALITY
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.


Product Description
The Fanuc A20B-3300-0603 is a robust and reliable main printed circuit board (PCB) essential for the operational integrity of your Fanuc CNC system. This meticulously engineered board provides critical control and communication functions, ensuring seamless interaction between the various components of your machine. It manages axis control, program execution, and data processing with precision, contributing to optimal machine performance and reduced downtime. The A20B-3300-0603 is manufactured to exacting standards, incorporating high-quality components designed for longevity and consistent performance in demanding industrial environments. Investing in this board guarantees the continued efficiency and productivity of your Fanuc-controlled machinery, safeguarding your manufacturing operations against costly interruptions. This unit is a direct replacement, facilitating straightforward installation and minimizing disruption to your workflow. It is a vital component for maintaining the peak operational status of your CNC equipment.
Technical specifications
The Fanuc A20B-3300-0603 is a robust and reliable main printed circuit board (PCB) engineered for seamless integration within Fanuc CNC systems. This essential component serves as the central processing unit, orchestrating communication and control across various machine functions, including axis movement, spindle operation, and peripheral device management. The A20B-3300-0603 features advanced processing capabilities, ensuring precise and efficient execution of complex machining programs. Its durable construction and rigorous testing guarantee dependable performance in demanding industrial environments, minimizing downtime and maximizing productivity. This board is a direct replacement, ensuring compatibility and simplified installation, thereby restoring optimal functionality to your Fanuc CNC system.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.

Ships from Rochester, NY