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Fanuc Spindle Servo Drive 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 Servo Drive Repair Services

Is your Fanuc Spindle Servo Drive malfunctioning and causing downtime? Roc Industrial LLC specializes in providing fast, reliable, and expert Fanuc Spindle Servo Drive repair services. Spindle servo drives are critical components in CNC machines, responsible for controlling the rotational speed and position of the spindle. When these drives fail, it can halt production and lead to significant financial losses. At Roc Industrial LLC, we understand the urgency of getting your equipment back up and running. With decades of experience, a vast inventory of parts, and a commitment to quality, Roc Industrial LLC is your trusted partner for Fanuc Spindle Servo Drive repairs. We offer free evaluations, warranty-backed repairs, and quick turnaround times to minimize your downtime.



About Fanuc Spindle Servo Drives

Fanuc is a globally recognized leader in CNC (Computer Numerical Control) systems, robotics, and factory automation. Their spindle servo drives are renowned for their precision, reliability, and performance in demanding industrial applications. Fanuc spindle servo drives are integral to CNC machining centers, lathes, and other machine tools, providing the power and control necessary for high-speed and high-accuracy machining operations. These drives are designed to work seamlessly with Fanuc CNC controllers, ensuring optimal performance and integration within the overall machine control system.


Fanuc spindle servo drives are widely used in industries such as aerospace, automotive, medical device manufacturing, and general machining. Their robust design and advanced control algorithms enable them to handle a wide range of machining tasks, from roughing operations to fine finishing. Fanuc's commitment to innovation and quality has made their spindle servo drives a preferred choice for manufacturers seeking to maximize productivity and minimize downtime. Roc Industrial LLC understands the critical role these drives play in your operations, and we are dedicated to providing top-notch repair services to keep your equipment running smoothly.



Supported Models & Series

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

  • A06B-6114 Series

  • A06B-6140 Series

  • A06B-6141 Series

  • A06B-6142 Series

  • A06B-6144 Series

  • A06B-6147 Series

  • A06B-6150 Series

  • A06B-6151 Series

  • A06B-6154 Series

  • A06B-6164 Series

  • Beta Series Spindle Amplifiers

  • Alpha Series Spindle Amplifiers

  • i Series Spindle Amplifiers

  • Specific models within the Alpha i series (e.g., Alpha iS, Alpha iI)

This is not an exhaustive list. If you have a Fanuc Spindle Servo Drive model not listed, please contact us. We have the expertise to troubleshoot and repair a wide variety of Fanuc spindle servo drives, even older or less common models. Our experienced technicians are familiar with the intricacies of Fanuc drive technology and can quickly diagnose and resolve any issues you may be experiencing.



Common Fanuc Spindle Servo Drive Problems We Repair

Fanuc Spindle Servo Drives are generally reliable, but like all electronic equipment, they can experience failures over time. We understand the frustration and downtime that these failures can cause. Here are some of the most common issues we see in Fanuc Spindle Servo Drive repairs:

  • No Output: The drive fails to provide power to the spindle motor, resulting in complete spindle standstill. This can be caused by internal component failures, power supply issues, or control circuit problems.

  • Overvoltage Errors: The drive detects excessive voltage levels, triggering a fault and shutting down the system. This can be due to regenerative braking issues, power supply fluctuations, or faulty components within the drive.

  • Communication Errors: The drive loses communication with the CNC controller, preventing proper operation. 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 premature component degradation and eventual drive failure.

  • Blown Fuses: Fuses within the drive blow repeatedly, indicating a short circuit or overload condition. This can be caused by faulty wiring, damaged components, or excessive current draw.

  • Encoder Faults: The drive detects errors in the feedback signal from the spindle encoder, leading to inaccurate speed and position control. This can be caused by a faulty encoder, damaged encoder cable, or problems with the encoder interface circuitry.

  • Drive tripping: The drive unexpectedly shuts down during operation, often due to internal faults or external issues.

  • Inconsistent Spindle Speed: The spindle speed fluctuates or is not stable, affecting machining accuracy.

  • Alarm Codes: The drive displays specific alarm codes indicating various faults and problems.

These are just some of the common problems we encounter. Our technicians have the knowledge and experience to diagnose and repair a wide range of issues affecting Fanuc Spindle Servo Drives. We use advanced diagnostic tools and techniques to pinpoint the root cause of the problem and implement effective repair solutions.



Our Fanuc Spindle Servo Drive Repair Process

At Roc Industrial LLC, we follow a meticulous and proven process for Fanuc Spindle Servo Drive repairs to ensure the highest quality and reliability:

  1. Free Evaluation and Quote: We begin with a free, no-obligation evaluation of your faulty Fanuc Spindle Servo Drive. Simply send us your drive, and our expert technicians will thoroughly assess the unit to identify the problem. We then provide you with a detailed quote outlining the necessary repairs and associated costs.

  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 recommend using a reputable shipping carrier and properly packaging the drive to prevent damage during transit.

  3. Diagnosis Using Specialized Test Equipment: Upon arrival, your Fanuc Spindle Servo Drive undergoes a comprehensive diagnosis using our state-of-the-art test equipment. We simulate real-world operating conditions to accurately identify the root cause of the failure. Our technicians utilize oscilloscopes, signal generators, and other specialized tools to analyze the drive's performance and pinpoint any faulty components.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing only the faulty components with high-quality replacements. We maintain a vast inventory of genuine Fanuc parts and components to ensure quick turnaround times and reliable repairs. Our technicians are skilled in soldering, desoldering, and other advanced repair techniques.

  5. Load Testing and Quality Checks: After the repairs are completed, your Fanuc Spindle Servo Drive undergoes rigorous load testing to ensure it meets or exceeds original performance specifications. We simulate various operating conditions and monitor the drive's performance to verify its reliability and stability. Our quality control process includes visual inspections, electrical testing, and functional testing.

  6. Warranty-Backed Return and Support: We stand behind our repairs with a comprehensive warranty. Your repaired Fanuc Spindle Servo Drive is carefully packaged and returned to you, ready for immediate installation. We also provide ongoing technical support to answer any questions you may have and ensure your complete satisfaction.

Our commitment to quality and customer satisfaction is unwavering. We strive to provide the best possible repair experience, from the initial evaluation to the final testing and return of your repaired Fanuc Spindle Servo Drive.



Nationwide Repair Services

Roc Industrial LLC proudly offers Fanuc Spindle Servo Drive repair services to customers nationwide. No matter where you are located in the United States, we can provide you with fast, reliable, and expert repair services. We understand that downtime can be costly, so we offer fast shipping options and quick turnaround times to minimize your disruption.


We serve customers in major metropolitan areas such as New York, Los Angeles, Chicago, Houston, and Dallas, as well as smaller cities and rural areas across the country. Our streamlined shipping process ensures that your Fanuc Spindle Servo Drive arrives safely and quickly at our repair facility. We work with all major shipping carriers to provide flexible and cost-effective shipping options.


Whether you're in need of emergency repairs or routine maintenance, Roc Industrial LLC is here to help. Contact us today to learn more about our nationwide Fanuc Spindle Servo Drive repair services.



Why Choose Roc Industrial LLC?

When it comes to Fanuc Spindle Servo Drive repair, Roc Industrial LLC offers several key advantages:

  • 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 Servo 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 vast inventory of genuine Fanuc parts and components, ensuring quick turnaround times and reliable repairs.

  • Fast Turnaround, Often Same-Day: We understand the urgency of getting your equipment back up and running, so we offer fast turnaround times, often with same-day service available.

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

  • Exceptional Customer Support: We are committed to providing exceptional customer support, from the initial evaluation to the final testing and return of your repaired Fanuc Spindle Servo Drive. Our friendly and knowledgeable staff is always available to answer your questions and address your concerns.

Don't let a faulty Fanuc Spindle Servo Drive slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable repair. We are your trusted partner for Fanuc Spindle Servo Drive repair services.

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