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Fanuc Spindle Motor Drive Repair Solutions

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 Motor Drive Repair Solutions

Is your Fanuc Spindle Motor Drive malfunctioning, causing downtime and impacting your production? Roc Industrial LLC specializes in fast, reliable, and expert Fanuc Spindle Motor Drive repair services. We understand the critical role these drives play in your CNC machinery and are committed to getting you back up and running quickly. Roc Industrial LLC is your trusted partner for all your Fanuc Spindle Motor Drive repair needs.



About Fanuc Spindle Motor Drives

Fanuc is a globally recognized leader in CNC (Computer Numerical Control) systems, robotics, and automation. Their spindle motor drives are integral components in CNC machines, responsible for controlling the speed and torque of the spindle, which is crucial for precise cutting, milling, and turning operations. Fanuc spindle motor drives are known for their robustness, accuracy, and advanced features, making them a preferred choice in various industries, including aerospace, automotive, and manufacturing.


These drives are designed to provide high performance and reliability in demanding industrial environments. They incorporate sophisticated control algorithms and feedback systems to ensure precise spindle speed regulation and optimal cutting performance. Fanuc spindle motor drives are widely used in CNC lathes, machining centers, and other machine tools, contributing to increased productivity and improved part quality. Roc Industrial LLC has extensive experience repairing a wide range of Fanuc spindle motor drives.



Supported Models & Series

We repair a wide range of Fanuc Spindle Motor Drive models and series, including but not limited to:

  • Fanuc Alpha i series Spindle Amplifiers (e.g., AiS0.5/3000, AiS1.5/3000, AiS3/3000)

  • Fanuc Beta i series Spindle Amplifiers (e.g., BiS8/6000, BiS12/6000, BiS22/6000)

  • Fanuc Alpha series Spindle Amplifiers (e.g., A06B-6055, A06B-6057, A06B-6058)

  • Fanuc Beta series Spindle Amplifiers (e.g., A06B-6079, A06B-6088, A06B-6093)

  • Fanuc i series Spindle Amplifiers (e.g., A06B-6114, A06B-6117, A06B-6127)

  • Fanuc Serial Spindle Amplifiers (e.g., A06B-6141, A06B-6142, A06B-6145)

  • Fanuc Digital Spindle Modules (various power ratings and configurations)

  • Fanuc AC Spindle Motor Units (e.g., Model 3, Model 5, Model 11, Model 22)

  • Fanuc Spindle Amplifier Modules SVM1, SVM2, SVM3

  • Fanuc Power Supply Modules for Spindle Drives


Common Fanuc Spindle Motor Drive Problems We Repair

Fanuc Spindle Motor Drives, while reliable, can experience failures due to various factors such as age, wear and tear, environmental conditions, and electrical surges. Recognizing these common issues can help you identify problems early and minimize downtime. Here are some of the common problems we repair:

  • Overcurrent Faults: Tripping due to excessive current draw, often caused by motor issues or drive component failure.

  • Overvoltage Faults: Occurring when the input voltage exceeds the drive's specified limits, potentially damaging internal components.

  • Undervoltage Faults: Resulting from insufficient input voltage, leading to drive malfunction or shutdown.

  • Communication Errors: Loss of communication between the drive and the CNC controller, disrupting spindle operation.

  • Overheating: Excessive heat buildup due to inadequate cooling, overloading, or component failure, leading to drive shutdown.

  • Encoder Faults: Problems with the encoder feedback system, causing inaccurate speed control or positioning.

  • Blown Fuses: Indicating an electrical overload or short circuit within the drive.

  • Drive Not Powering On: Complete failure of the drive to power up, often due to power supply issues or internal component failure.

  • Erratic Spindle Speed: Inconsistent or unstable spindle speed, affecting machining accuracy.

  • Excessive Vibration: Unusual vibrations in the spindle motor, potentially indicating mechanical issues or drive problems.

  • Alarm Codes: Display of specific alarm codes indicating various faults within the drive system (e.g., 401, 414, 417, 424).

  • Power Module Failures: Issues with the IGBT or MOSFET power modules responsible for controlling the motor.

  • Control Board Malfunctions: Problems with the control board affecting drive logic and functionality.

  • Capacitor Failures: Degradation or failure of capacitors within the drive, leading to performance issues.


Our Fanuc Spindle Motor Drive Repair Process

Roc Industrial LLC follows a comprehensive and meticulous repair process to ensure the highest quality Fanuc Spindle Motor Drive repairs. Our process is designed to quickly diagnose the problem, efficiently repair the drive, and thoroughly test it to ensure optimal performance. Here's a detailed breakdown of our repair process:

  1. Free Evaluation and Quote: We begin with a free evaluation of your Fanuc Spindle Motor Drive to determine the extent of the damage and the necessary repairs. We provide a detailed quote outlining the repair costs and estimated turnaround time.

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

  3. Diagnosis Using Specialized Test Equipment: Upon arrival, our experienced technicians conduct a thorough diagnosis using specialized test equipment and diagnostic tools. We identify the root cause of the problem and assess the condition of all critical components.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty or worn components with high-quality replacements. We use only genuine or equivalent parts to ensure optimal performance and reliability. Our technicians are skilled in soldering, circuit board repair, and component replacement.

  5. Load Testing and Quality Checks: After the repairs are completed, we subject the drive to rigorous load testing and quality checks. We simulate real-world operating conditions to ensure the drive performs flawlessly under load. We verify all parameters, including speed, torque, and voltage, to meet or exceed original specifications.

  6. Warranty-Backed Return and Support: We stand behind our repairs with a comprehensive warranty. Your repaired Fanuc Spindle Motor Drive is carefully packaged and returned to you, along with a detailed repair report. We also provide ongoing technical support to address any questions or concerns you may have.


Nationwide Repair Services

Roc Industrial LLC provides Fanuc Spindle Motor Drive repair services to customers nationwide. Whether you're located in New York, Los Angeles, Chicago, Houston, Dallas, or any other city across the United States, we can help. We offer fast shipping options and quick turnaround times to minimize downtime and keep your operations running smoothly.


We understand the urgency of getting your CNC machinery back online, which is why we prioritize speed and efficiency in our repair process. Our nationwide service network ensures that you receive prompt and reliable support, regardless of your location. Roc Industrial LLC is committed to providing exceptional service and minimizing disruptions to your business.



Why Choose Roc Industrial LLC?

When it comes to Fanuc Spindle Motor Drive repair, Roc Industrial LLC stands out as a trusted and reliable partner. Here are some of the key reasons why you should choose us:

  • 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 Motor Drive repairs.

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

  • Thousands of Parts in Stock: We maintain a large inventory of Fanuc Spindle Motor Drive components, enabling us to expedite repairs and minimize downtime.

  • Fast Turnaround, Often Same-Day: We understand the importance of speed, and we strive to provide the fastest turnaround times possible, often offering same-day repair services for critical situations.

  • ISO-Certified Repair Processes: Our repair processes are ISO-certified, ensuring that we adhere to the highest standards of quality and professionalism.

  • Exceptional Customer Support: We are committed to providing exceptional customer support, from initial consultation to post-repair assistance. Our friendly and knowledgeable team is always available to answer your questions and address your concerns.

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

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