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Fanuc servo motor troubleshooting and refurbishment

ISO 9001:2015 Certified Quality

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

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 Servo Motor Repair, Troubleshooting, and Refurbishment Services

Is your Fanuc servo motor experiencing issues? Roc Industrial LLC specializes in comprehensive Fanuc servo motor repair, troubleshooting, and refurbishment services. We understand the critical role these motors play in your CNC machines, robotics, and automation systems. Our experienced technicians provide fast, reliable, and cost-effective solutions to get your equipment back up and running quickly. Trust Roc Industrial LLC for expert Fanuc servo motor repair services you can depend on.



About Fanuc Servo Motors

Fanuc is a globally recognized leader in automation, known for its high-performance and reliable servo motors. These motors are integral components in a wide range of industrial applications, including CNC machining centers, robotic arms, and automated assembly lines. Fanuc servo motors are designed for precision, speed, and durability, making them a preferred choice for manufacturers worldwide. However, even the most robust servo motors can experience failures due to wear and tear, environmental factors, or electrical issues.


Fanuc servo motors are renowned for their advanced features, such as high torque density, precise positioning capabilities, and efficient energy consumption. They are commonly used in industries such as automotive, aerospace, electronics, and general manufacturing, where precision and reliability are paramount. When a Fanuc servo motor fails, it can lead to significant downtime and production losses. Roc Industrial LLC offers comprehensive repair services to address a wide range of issues, ensuring that your equipment operates at peak performance.



Supported Models & Series

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

  • Alpha Series (αi, α)

  • Beta Series (βi, β)

  • Servo Amplifier Modules (SVM)

  • AC Servo Motors (various sizes and torque ratings)

  • Spindle Motors (including A06B series)

  • Pulse coder repairs and replacements

  • Fanuc AC Servo Motor Model AiS series

  • Fanuc AC Servo Motor Model BiS series

  • Fanuc AC Spindle Motor Model Ai series

  • Fanuc AC Spindle Motor Model Bi series

  • Fanuc Servo Amplifier Modules

  • Fanuc Power Supply Modules

If you don't see your specific model listed, please contact us. We have the expertise and resources to repair a vast array of Fanuc servo motors.



Common Fanuc Servo Motor Problems We Repair

Fanuc servo motors can experience various issues that can impact their performance and reliability. Our experienced technicians are equipped to diagnose and repair a wide range of common failures.

  • No Output/Motor Not Running: This can be caused by a faulty power supply, damaged motor windings, or issues with the servo amplifier.

  • Overheating: Overheating can result from excessive load, inadequate cooling, or internal motor damage.

  • Communication Errors: Communication problems between the servo motor and the CNC controller can lead to erratic behavior or complete failure.

  • Encoder Faults: Encoder issues can cause inaccurate positioning or complete loss of control.

  • Blown Fuses: Repeatedly blown fuses can indicate a short circuit or other electrical fault within the motor or associated circuitry.

  • Excessive Vibration or Noise: Unusual vibrations or noises can indicate bearing damage, loose components, or other mechanical issues.

  • Low Torque: Reduced torque output can be caused by worn motor components, damaged windings, or issues with the servo amplifier.

  • Positioning Errors: Inaccurate positioning can result from encoder faults, backlash, or issues with the servo control system.

  • Brake Malfunctions: Problems with the motor's brake system can lead to uncontrolled movement or failure to hold position.

  • Moisture Contamination: Moisture ingress can cause corrosion and electrical shorts, leading to motor failure.


Our Fanuc Servo Motor Repair Process

Roc Industrial LLC follows a comprehensive and meticulous repair process to ensure the highest quality Fanuc servo motor repairs:

  1. Free Evaluation and Quote: We begin with a thorough evaluation of your Fanuc servo motor to identify the root cause of the problem. We then provide you with a detailed quote for the repair, with no hidden fees.

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

  3. Diagnosis Using Specialized Test Equipment: Our technicians use advanced diagnostic equipment to pinpoint the exact cause of the failure. This includes testing motor windings, encoders, and other critical components.

  4. Component-Level Repair and Replacement: We perform component-level repairs whenever possible, replacing only the faulty components to minimize costs. We use only high-quality replacement parts that meet or exceed OEM specifications.

  5. Load Testing and Quality Checks: After the repair is complete, we subject the motor to rigorous load testing to ensure it performs to its original specifications. We also conduct thorough quality checks to verify the repair's reliability.

  6. Warranty-Backed Return and Support: All of our Fanuc servo motor repairs are backed by a comprehensive warranty. We also provide ongoing technical support to ensure your complete satisfaction.


Nationwide Repair Services

Roc Industrial LLC provides Fanuc servo motor repair services to customers nationwide. We understand the importance of minimizing downtime, and we offer fast turnaround times to get your equipment back up and running as quickly as possible. We serve customers in major metro areas, including New York, Los Angeles, Chicago, Houston, and Dallas, as well as smaller cities and rural areas across the country.


We offer various shipping options to accommodate your needs, including expedited shipping for urgent repairs. Our team is committed to providing exceptional customer service and support throughout the repair process. Whether you're located on the East Coast, West Coast, or anywhere in between, Roc Industrial LLC is your trusted partner for Fanuc servo motor repair.



Why Choose Roc Industrial LLC?

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

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

  • Warranty-Backed Repairs: We stand behind our work with a comprehensive warranty on all repairs.

  • Thousands of Parts in Stock: We maintain a large inventory of Fanuc servo motor parts to ensure fast turnaround times.

  • Fast Turnaround, Often Same-Day: We understand the importance of minimizing downtime, and we offer expedited repair services whenever possible.

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

  • Exceptional Customer Support: Our team is committed to providing exceptional customer service and support throughout the repair process.

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

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