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Fanuc Spindle Controller Repair Services

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 Spindle Controller Repair Services

Is your Fanuc spindle controller malfunctioning and causing downtime? Roc Industrial LLC specializes in providing fast, reliable, and expert Fanuc spindle controller repair services. A Fanuc spindle controller is a critical component in CNC machines, responsible for precisely controlling the speed and torque of the spindle motor. When these controllers fail, production grinds to a halt. Roc Industrial LLC offers comprehensive repair solutions, ensuring your equipment is back up and running quickly. We understand the urgency of your situation and are committed to providing the highest quality repair services with unparalleled speed and reliability. Trust Roc Industrial LLC as your trusted repair provider for all your Fanuc spindle controller needs.



About Fanuc Spindle Controllers

Fanuc is a globally recognized leader in CNC (Computer Numerical Control) systems, robotics, and automation. Their spindle controllers are renowned for their precision, reliability, and advanced features, making them a staple in various industries, including manufacturing, automotive, aerospace, and more. Fanuc spindle controllers are designed to work seamlessly with Fanuc CNC systems, providing precise control over spindle speed, torque, and positioning. This precise control is essential for achieving high-quality machining results and maintaining consistent production output.


Fanuc spindle controllers are widely used in CNC milling machines, CNC lathes, and other precision machining equipment. They are known for their robust design and ability to withstand the demanding conditions of industrial environments. However, even the most reliable equipment can experience failures over time. Roc Industrial LLC has extensive experience in repairing and servicing Fanuc spindle controllers, ensuring that your equipment operates at peak performance. We understand the critical role these controllers play in your operations and are dedicated to providing fast and effective repair solutions.



Supported Models & Series

We repair a wide range of Fanuc spindle controller models and series, including but not limited to:

  • Fanuc AC Spindle Servo Unit Series: A06B-6114, A06B-6117, A06B-6127, A06B-6134

  • Fanuc Digital Spindle Amplifier Modules: A06B-6141, A06B-6142, A06B-6148

  • Fanuc Alpha i Series Spindle Amplifiers: A06B-6164, A06B-6167, A06B-6174

  • Fanuc Beta i Series Spindle Amplifiers: A06B-6220, A06B-6224, A06B-6228

  • Fanuc Serial Spindle Amplifier Modules: A06B-6055, A06B-6056, A06B-6057

  • Fanuc S Series Spindle Servo Units: A06B-6044, A06B-6045, A06B-6046

  • Fanuc Power Supply Modules for Spindle Drives: A06B-6077, A06B-6079, A06B-6088

  • Fanuc SVM Series Spindle Modules: SVM1-20i, SVM1-40i, SVM2-20i, SVM2-40i

  • Various generations of Fanuc spindle drive systems (e.g., early DC drives to modern AC digital drives)

  • If you do not see your specific model listed, please contact us. We can likely repair it!


Common Fanuc Spindle Controller Problems We Repair

Fanuc spindle controllers are built to last, but they can still experience issues due to age, wear and tear, power surges, or environmental factors. Recognizing these common problems can help you identify the need for professional repair services. Here are some of the common failures we address:

  • No Output: The spindle motor fails to receive power, resulting in complete standstill.

  • Overvoltage/Undervoltage Errors: The controller detects voltage fluctuations that can damage internal components.

  • Communication Errors: The controller loses communication with the CNC system, preventing proper operation.

  • Overheating: Excessive heat buildup can cause the controller to shut down or malfunction.

  • Blown Fuses: Frequent fuse failures indicate underlying issues within the controller's circuitry.

  • Encoder Faults: Problems with the encoder feedback system can lead to inaccurate spindle positioning and speed control.

  • Drive Faults: Internal drive components fail, causing the spindle to operate erratically or not at all.

  • Parameter Loss: The controller loses its programmed parameters, requiring reprogramming.

  • Excessive Vibration: Unusual vibrations during spindle operation, often indicating a mechanical or electrical issue within the controller.

  • Inconsistent Spindle Speed: The spindle speed fluctuates or fails to maintain the set speed accurately.


Our Fanuc Spindle Controller Repair Process

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

  1. Free Evaluation and Quote: We begin with a free evaluation of your faulty Fanuc spindle controller. Our experienced technicians will assess the damage and provide you with a detailed quote for the repair.

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

  3. Diagnosis Using Specialized Test Equipment: Upon arrival, your controller undergoes a thorough diagnosis using our state-of-the-art test equipment. We identify the root cause of the problem and determine the best course of action for repair.

  4. Component-Level Repair and Replacement: Our skilled technicians perform component-level repairs, replacing faulty components with high-quality replacements. We use only genuine or equivalent parts to ensure optimal performance and longevity.

  5. Load Testing and Quality Checks: After the repair, your controller undergoes rigorous load testing to simulate real-world operating conditions. We verify that the controller meets or exceeds original performance specifications.

  6. Warranty-Backed Return and Support: We stand behind our work with a comprehensive warranty. Your repaired Fanuc spindle controller is carefully packaged and returned to you, along with ongoing technical support.


Nationwide Repair Services

Roc Industrial LLC proudly offers Fanuc spindle controller repair services to customers nationwide. We understand that downtime can be costly, which is why we strive to provide fast and efficient repair solutions, no matter where you are located. We serve customers in major metro areas, including New York, Los Angeles, Chicago, Houston, and Dallas, as well as smaller towns and rural areas across the country.


We offer fast shipping options and quick turnaround times to minimize disruption to your operations. Our experienced team is dedicated to providing exceptional customer service and support throughout the repair process. Whether you're facing a critical breakdown or need routine maintenance, Roc Industrial LLC is here to help.



Why Choose Roc Industrial LLC?

When it comes to Fanuc spindle controller repair, Roc Industrial LLC stands out as the premier choice. Here's why:

  • 30+ Years of Experience: With over three decades of experience in industrial electronics repair, we have the knowledge and expertise to handle even the most complex Fanuc spindle controller issues.

  • Warranty-Backed Repairs: We stand behind our work with a comprehensive warranty, giving you peace of mind and assurance of quality.

  • Thousands of Parts in Stock: Our extensive inventory of parts allows us to expedite repairs and minimize downtime.

  • Fast Turnaround, Often Same-Day: We understand the urgency of your situation and strive to provide the fastest possible turnaround times, often offering same-day repair services.

  • ISO-Certified Repair Processes: Our repair processes are ISO-certified, ensuring consistent quality and adherence to industry best practices.

  • Exceptional Customer Support: Our dedicated customer support team is available to answer your questions and provide assistance throughout the repair process.

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

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