Fanuc servo drives, also known as amplifiers, are crucial for powering and controlling servo motors in CNC systems. When these components fail—due to age, heat stress, electrical surges, or mechanical wear—the consequences can be costly. While buying a new unit may seem like the safest choice, refurbishing a Fanuc drive/amplifier is often a smarter, more economical solution that restores full functionality at a fraction of the cost.
What’s Involved in Refurbishing a Fanuc Servo Amplifier?
Refurbishment is more than a basic repair—it’s a complete reconditioning process that restores the drive to near-OEM performance. The typical steps include:
- Initial Diagnosis & Disassembly
The amplifier is fully inspected and disassembled to assess internal damage, alignment issues, or failed components. - Component-Level Testing & Replacement
Technicians evaluate and replace critical components such as resolvers, potentiometers, rectifiers, rotors, and capacitors. Worn connectors, heatsinks, and interface circuits are also inspected and replaced if necessary. - Recalibration & Functional Testing
After reassembly, the drive is connected to a Fanuc control for load testing, thermal evaluation, and signal response analysis. The goal is to meet or exceed original performance standards. - Exterior Restoration
The unit is cleaned, painted if required, and labeled with a new identification tag and quality control certification.
When Should You Refurbish Instead of Replace?
Not all failures require complete replacement. If your Fanuc servo amplifier is:
- Displaying intermittent alarm codes
- Overheating or shutting down unexpectedly
- Experiencing loss of signal or inconsistent motor control
- Physically intact but electrically failing
…it’s likely a candidate for professional refurbishment. Many internal faults are caused by degraded solder joints, aged capacitors, or signal interference—all of which can be corrected through expert rebuilding.
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Reseller or Distributer?
Partner with CIT for Refurbished Fanuc Drives and Amplifiers
At CIT Automation Equipment, we specialize in refurbishing and supplying Fanuc servo drives and amplifiers. Our process combines precision diagnostics, OEM-standard testing, and fast turnaround to get your CNC machines back in action—without the cost of buying new.
We maintain an extensive inventory of certified refurbished Fanuc parts, and all units are tested under real-world load conditions to guarantee reliability.
- Tested for OEM performance
- Cost savings up to 75%
- Available for same-day dispatch
- Technical support from Fanuc-trained specialists
Whether you’re maintaining a legacy machine or managing a fleet of CNC systems, CIT is your trusted source for refurbished Fanuc drives and automation components.
Contact CIT Automation Equipment today to check availability, get expert support, or request a fast quote.