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Fanuc CNC Servo Drive Repair

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 CNC Servo Drive Repair Services by Roc Industrial LLC

Is your Fanuc CNC servo drive malfunctioning? Roc Industrial LLC specializes in providing fast, reliable, and expert Fanuc CNC servo drive repair services. We understand the critical role these drives play in your CNC machinery, and we're committed to minimizing your downtime. Our experienced technicians are equipped to diagnose and repair a wide range of Fanuc servo drive issues, ensuring your equipment is back up and running as quickly as possible. Trust Roc Industrial LLC for all your Fanuc servo drive repair needs.



About Fanuc CNC Servo Drives

Fanuc is a world-renowned leader in CNC (Computer Numerical Control) systems, robotics, and automation. Their servo drives are integral components of CNC machines, providing precise and responsive motion control for various axes. Fanuc servo drives are known for their robust design, high performance, and reliability, making them a staple in industries such as manufacturing, aerospace, automotive, and electronics. These drives are essential for controlling the speed, torque, and position of motors in CNC machines, ensuring accurate and efficient machining operations.


Fanuc servo drives are widely used in CNC milling machines, lathes, routers, and other automated equipment. They are designed to handle demanding applications, providing the power and precision required for complex machining tasks. The advanced technology incorporated into Fanuc servo drives ensures smooth and accurate movements, contributing to the overall quality and productivity of CNC operations. With a strong reputation for innovation and quality, Fanuc continues to be a trusted provider of servo drive solutions for industries worldwide. When these critical components fail, you need a reliable repair partner like Roc Industrial LLC to get you back in production.



Supported Models & Series

We repair a wide range of Fanuc CNC servo drive models and series, including but not limited to:

  • Alpha Series: A06B-0111-Bxxx, A06B-0127-Bxxx, A06B-0151-Bxxx, A06B-0205-Bxxx, A06B-0212-Bxxx

  • Beta Series: A06B-0031-Bxxx, A06B-0032-Bxxx, A06B-0034-Bxxx, A06B-0037-Bxxx, A06B-0038-Bxxx

  • i Series: A06B-6114-Hxxx, A06B-6117-Hxxx, A06B-6124-Hxxx, A06B-6127-Hxxx, A06B-6134-Hxxx

  • Servo Amplifier Modules: A06B-6079-Hxxx, A06B-6088-Hxxx, A06B-6093-Hxxx, A06B-6102-Hxxx, A06B-6104-Hxxx

  • AC Servo Motor Units: A06B-0115-Bxxx, A06B-0116-Bxxx, A06B-0128-Bxxx, A06B-0153-Bxxx, A06B-0157-Bxxx

  • Series 30i/31i/32i: Including various models within these advanced series, addressing high-performance CNC applications.

  • Spindle Amplifier Modules: A06B-6055-Hxxx, A06B-6057-Hxxx, A06B-6058-Hxxx, A06B-6059-Hxxx, A06B-6060-Hxxx

If you don't see your specific model listed, please contact us. Our technicians have extensive experience with a wide variety of Fanuc servo drives and can likely assist you.



Common Fanuc CNC Servo Drive Problems We Repair

Fanuc servo drives, while robust, can experience failures due to age, wear, environmental factors, or electrical issues. Recognizing these problems early can prevent further damage and minimize downtime. Here are some common issues we address at Roc Industrial LLC:

  • No Output/Dead Drive: The servo drive fails to power on or provide any output to the motor. This can be caused by internal component failures, power supply issues, or damaged control circuitry.

  • Overvoltage/Undervoltage Errors: The drive detects voltage levels outside the acceptable range, leading to fault codes and shutdown. This can be due to power supply problems, wiring issues, or faulty components within the drive.

  • Communication Errors: The servo drive loses communication with the CNC controller, resulting in error messages and inability to control the motor. This can be caused by faulty communication cables, damaged communication ports, or software glitches.

  • Overheating: The drive overheats due to excessive load, inadequate cooling, or internal component failures. Overheating can lead to reduced performance, premature component failure, and eventual drive shutdown.

  • Blown Fuses: Frequent fuse failures indicate an underlying problem, such as short circuits, overloads, or component failures within the drive. Replacing the fuse without addressing the root cause will likely result in repeated failures.

  • Encoder Faults: The encoder, which provides feedback on motor position and speed, malfunctions, leading to inaccurate control and error messages. Encoder faults can be caused by damaged encoder cables, faulty encoder components, or contamination.

  • Positioning Errors: Inaccurate or inconsistent positioning of the CNC machine axes, often related to encoder issues, motor problems, or drive control malfunctions.

  • Motor Stalling: The servo motor stops unexpectedly during operation, potentially due to overload, drive failure, or motor winding issues.

  • Excessive Vibration or Noise: Unusual vibrations or noises emanating from the servo drive or motor, indicating potential mechanical or electrical problems.

  • Current Overload: The drive detects excessive current draw, indicating a potential short circuit, motor problem, or drive malfunction.


Our Fanuc CNC Servo Drive Repair Process

Roc Industrial LLC follows a meticulous repair process to ensure the highest quality and reliability of our Fanuc servo drive repairs:

  1. Free Evaluation and Quote: We offer a free evaluation of your faulty Fanuc servo drive to determine the extent of the damage and provide you with a detailed repair quote. There are no hidden fees, and you're under no obligation to proceed with the repair.

  2. Shipping Instructions: Once you approve the quote, we provide clear and concise shipping instructions to ensure your servo drive arrives safely at our repair facility. We can also arrange for expedited shipping if needed.

  3. Diagnosis Using Specialized Test Equipment: Our experienced technicians use advanced diagnostic equipment to pinpoint the root cause of the problem. We thoroughly test all critical components, including power supplies, control circuitry, and feedback systems.

  4. Component-Level Repair and Replacement: We perform component-level repairs whenever possible, replacing only the faulty components with high-quality replacements. This approach helps to minimize repair costs and turnaround time. We maintain a large inventory of Fanuc servo drive components to expedite the repair process.

  5. Load Testing and Quality Checks: After the repair, we subject the servo drive to rigorous load testing to ensure it meets or exceeds original performance specifications. We also perform thorough quality checks to verify proper operation and reliability.

  6. Warranty-Backed Return and Support: All our Fanuc servo drive repairs are backed by a comprehensive warranty, giving you peace of mind. We also provide ongoing technical support to answer any questions you may have after the repair.


Nationwide Repair Services

Roc Industrial LLC provides Fanuc CNC servo drive repair services to customers nationwide. Whether you're located in New York, Los Angeles, Chicago, Houston, Dallas, or anywhere else in the United States, we can help. We offer fast shipping options and quick turnaround times to minimize your downtime. Our experienced technicians are available to assist you with all your Fanuc servo drive repair needs, regardless of your location.



Why Choose Roc Industrial LLC?

When it comes to Fanuc CNC servo drive repair, Roc Industrial LLC offers several key advantages:

  • 30+ Years of Experience: Our technicians have decades of experience repairing Fanuc servo drives and other industrial electronic equipment.

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

  • Thousands of Parts in Stock: We maintain a large inventory of Fanuc servo drive components to expedite the repair process.

  • Fast Turnaround, Often Same-Day: We understand the importance of minimizing downtime, and we strive to provide the fastest possible turnaround times, often offering same-day service for urgent repairs.

  • 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, from initial evaluation to post-repair assistance.

Don't let a faulty Fanuc CNC servo drive slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable Fanuc CNC servo drive repair.

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