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Fanuc I/O backplane rebuild & testing

ISO 9001:2015 Certified Quality

Our certified process ensures consistent quality and reliable repairs every time.

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2-Year Repair Warranty

We stand behind our repairs with an extensive 2-year warranty on parts and labor for your peace of mind.

Fast Turnaround Time

Our efficient process and large parts inventory help minimize your operational downtime.

Expert Component-Level Repair

We find and replace individual failed components, offering a more affordable and effective repair than full replacement.

Free, No-Obligation Quote

Send us your item for a free evaluation and receive a detailed repair quote with no commitment required.

Fanuc I/O Backplane Repair Services by Roc Industrial LLC

Is your Fanuc I/O backplane malfunctioning, causing downtime and disrupting your automation processes? Roc Industrial LLC specializes in providing comprehensive Fanuc I/O backplane repair services, ensuring your critical systems are back online quickly and reliably. We understand the vital role these backplanes play in connecting your CNC machines, robots, and other industrial equipment. Our experienced technicians offer fast, reliable repairs, and thorough testing. Trust Roc Industrial LLC as your trusted partner for all your Fanuc I/O backplane repair needs.



About Fanuc I/O Backplanes

Fanuc is a global leader in automation, renowned for its high-performance CNC systems, robots, and industrial automation solutions. Their I/O (Input/Output) backplanes are essential components in these systems, serving as the central communication hub for connecting various input and output modules. These modules control sensors, actuators, motors, and other devices, enabling the seamless operation of complex automated processes. Fanuc I/O backplanes are known for their robust design and reliability, but like any electronic component, they are susceptible to failure over time due to factors such as electrical surges, component aging, and environmental conditions.


Fanuc I/O backplanes are widely used in a variety of industries, including manufacturing, automotive, aerospace, and electronics. They are integral to the operation of CNC machines, robotic welding systems, assembly lines, and other automated equipment. The reliability of these backplanes is crucial for maintaining production efficiency and minimizing downtime. When a Fanuc I/O backplane fails, it can lead to significant disruptions in operations, resulting in lost productivity and increased costs. Roc Industrial LLC understands the urgency of these situations and is committed to providing fast and effective repair services to get your systems back up and running as quickly as possible.



Supported Models & Series

We repair a wide range of Fanuc I/O backplane models and series, including but not limited to:

  • A02B-0200-C120

  • A02B-0200-C121

  • A02B-0200-C122

  • A02B-0200-C123

  • A02B-0200-C124

  • A02B-0200-C125

  • A02B-0200-C130

  • A02B-0200-C131

  • A02B-0200-C132

  • A02B-0200-C133

  • A02B-0200-C134

  • A02B-0200-C135

  • A02B-0120-C001

  • A02B-0120-C002

  • A02B-0120-C003

  • Series 90-30 I/O Backplanes

  • Series 90-70 I/O Backplanes

  • Fanuc Power Mate I/O Backplanes

  • Fanuc Series 15/16/18 I/O Backplanes

  • Fanuc Series 21/0i/30i I/O Backplanes


Common Fanuc I/O Backplane Problems We Repair

Fanuc I/O backplanes can experience a variety of issues that can disrupt your automation processes. Our experienced technicians are equipped to diagnose and repair a wide range of common failures.

  • No Communication: Failure to communicate with the CNC controller or other devices.

  • I/O Module Errors: Individual I/O modules not functioning correctly.

  • Power Supply Issues: Problems with the backplane's power supply, leading to intermittent or complete failure.

  • Overheating: Excessive heat buildup causing component damage and malfunction.

  • Short Circuits: Electrical shorts damaging components and preventing proper operation.

  • Blown Fuses: Repeated fuse failures indicating underlying issues.

  • Damaged Connectors: Physical damage to connectors preventing proper signal transmission.

  • Corrosion: Corrosion on circuit boards and connectors due to environmental factors.

  • Component Failure: Failure of individual electronic components such as capacitors, resistors, and integrated circuits.

  • Logic Errors: Internal logic errors causing incorrect I/O operation.


Our Fanuc I/O Backplane Repair Process

Roc Industrial LLC follows a rigorous repair process to ensure the highest quality and reliability of our Fanuc I/O backplane repairs:

  1. Free Evaluation and Quote: We offer a free evaluation of your faulty Fanuc I/O backplane to determine the extent of the damage and provide you with a detailed quote for the repair.

  2. Shipping Instructions: We provide clear and concise shipping instructions to ensure your I/O backplane arrives safely at our repair facility.

  3. Diagnosis Using Specialized Test Equipment: Our experienced technicians use state-of-the-art diagnostic equipment to pinpoint the root cause of the problem. We perform thorough testing to identify all faulty components and potential issues.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing only the faulty components with high-quality replacements. This approach minimizes repair costs and ensures the long-term reliability of the repaired unit.

  5. Load Testing and Quality Checks: After the repair, we conduct rigorous load testing to simulate real-world operating conditions and ensure the I/O backplane performs flawlessly. We also perform comprehensive quality checks to verify that all functions are working correctly.

  6. Warranty-Backed Return and Support: All our Fanuc I/O backplane repairs are backed by a comprehensive warranty. We also provide ongoing technical support to answer any questions you may have and ensure your complete satisfaction.


Nationwide Repair Services

Roc Industrial LLC provides Fanuc I/O backplane repair services to customers nationwide. Whether you are located in New York, Los Angeles, Chicago, Houston, Dallas, or any other city in the United States, we can help. We offer fast shipping options and quick turnaround times to minimize downtime and get your systems back online as quickly as possible.


We understand that downtime can be costly, which is why we are committed to providing the fastest and most reliable repair services possible. Our nationwide network of service centers allows us to respond quickly to your needs and provide on-site support when necessary. We also offer expedited shipping options to ensure your repaired I/O backplane arrives quickly and safely.



Why Choose Roc Industrial LLC?

When it comes to Fanuc I/O backplane repair, Roc Industrial LLC is the clear choice. We offer a number of key differentiators that set us apart from the competition:

  • 30+ Years of Experience: We have over 30 years of experience in industrial electronic repair, giving us the expertise to handle even the most complex Fanuc I/O backplane repairs.

  • Warranty-Backed Repairs: All our repairs are backed by a comprehensive warranty, giving you peace of mind and ensuring your satisfaction.

  • Thousands of Parts in Stock: We maintain a large inventory of Fanuc I/O backplane components, allowing us to complete repairs quickly and efficiently.

  • Fast Turnaround, Often Same-Day: We understand the importance of minimizing downtime, which is why we offer fast turnaround times, often with same-day service available.

  • ISO-Certified Repair Processes: Our repair processes are ISO-certified, ensuring the highest quality and reliability.

  • Exceptional Customer Support: We are committed to providing exceptional customer support. Our knowledgeable and friendly staff is always available to answer your questions and assist you with your repair needs.

Don't let a faulty Fanuc I/O backplane slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable repair. We are your trusted partner for all your Fanuc I/O backplane repair and testing needs. Our expert technicians are ready to provide the best Fanuc I/O backplane repair service available.

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