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FANUC Spindle Drive & Amplifier Repair Services

FANUC Spindle Amplifier Repairs

Nationwide CNC Spindle Repair Services

If a spindle amplifier fails to remain perfectly consistent in its speed or torque, contact Tri Star CNC Services for support. We provide quick and affordable repair on spindle amp component-level parts. Get in touch with us by submitting a form or call over the phone for free phone support.

Once we receive your part, Tri Star will repair, clean and ship the part back to you, typically in 3 to 5 days. If you need a replacement part, we also offer refurbished spindle amps and AC spindle drives at the best prices online.

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⚠ Troubleshooting alarm codes? See our FANUC spindle alarm code list.


If you are experiencing any issues with your precision CNC machining and suspect an issue with electronic components, contact us today. We provide free phone support to help you determine if your Servo drive is malfunctioning and needs repair. Our technicians have extensive experience repairing and refurbishing FANUC spindle amplifiers. We also replace FANUC spindle drives when parts are nearing the end of their lifecycle.

When you call us for support, we walk you through the repair process for any FANUC machine free of charge. If your parts are in need of repair, we will walk you through the steps of our parts exchange service to get you a working replacement part or an on-site technician as soon as possible.

FANUC Spindle Amplifier Repair & Exchange Service

If your spindle drive/amp is faulty beyond repair we can provide excellent prices on refurbished parts from our exchange stock. Contact us for availability for spindle amplifier replacements or type in the part number in the search bar below to find it online. We keep stock of these parts and more in our inventory ready to go.

Search spindle amps:

Browse our full list of FANUC parts.

FANUC spindle amplifier error alarm codes

Servo Amplifier Alarms

Spindle Amplifier Alarms

Power Supply Alarms

SVPM Alarms

Overtravel Alarms

Overheat Alarms

System Alarms

Spindle amplifier failure can occur for a number of reasons completely foreign to someone on the floor with no experience with internal electronic CNC machine components. Even the most detailed explanation in a manual (or in our own list) can be intimidating. If you’re having trouble diagnosing or navigating your machine’s symptoms, Tri Star CNC provides over-the-phone guidance from experts to help you through it.

FANUC Spindle Amplifier Repair Services

How Does Tri Star CNC’s Repair Process Work?

  1. Contact us online or call us at 815-578-9145 for FREE troubleshooting assistance.
  2. Once the problem is diagnosed, fill out an RMA form for repairs. New customers will also need to submit a new customer form and credit application.
  3. Ship the part out to Tri Star.
  4. Tri Star receives, repairs, cleans and ships back the part, typically in 3 to 5 days.

Tri Star CNC representatives will remain in touch with you, providing updates throughout the entire process.

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Symptoms of a malfunctioning spindle amplifier

When maintained, the control, drive and motor of a spindle amp should work together with precision and accuracy. When they fail, FANUC’s spindle drives frequently exhibit these errors, among others:

Spindle Amplifier Operation

A spindle drive controls the high-speed, compact AC motors commonly used in machine tool spindle drive applications. Since maintaining consistent speed and torque is essential to accuracy and finish quality, these devices use digital signal processors to constantly monitor and adjust speed, torque and current to minimize variations in speed and torque during use.

Contact Tri Star CNC Services for a quote on repairs or availability from our exchange stock.

What is a FANUC spindle amplifier?

A FANUC spindle amplifier is a CNC control part. It controls the high-speed, compact AC motors used in machine tool spindle drive applications.

How can I tell if my spindle amplifier needs repair?

Signs that your spindle amplifier needs to be repaired include:

  • Erratic operation
  • No rotation
  • Feedback failure
  • Abnormal DC link alarms

For free over-the-phone FANUC spindle amp troubleshooting, call Tri Star CNC Services, LLC at 815-578-9145.

What is the cost of FANUC spindle amplifier repair?

The average cost of FANUC spindle amplifier repair is $3,827.02 with the maximum repair cost being $12,936.00 and the minimum repair cost being $1,074.00. Search our parts database to get an up-to-date pricing quote on your part.

What is the cost of FANUC spindle amplifier exchange?

The average FANUC spindle amplifier exchange cost is $4,757.98 with the maximum exchange cost being $17,558.00 and the minimum exchange cost being $1,338.00. Search our parts database to get an up-to-date pricing quote on your part.

Do refurbished FANUC spindle amplifiers have a warranty?

All our FANUC spindle amplifier parts and repairs include a one-year warranty.


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