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Mazak inverter calibration and testing

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.

Mazak Inverter Repair Services by Roc Industrial LLC

Is your Mazak inverter malfunctioning and causing downtime? Roc Industrial LLC specializes in providing fast, reliable, and expert Mazak inverter repair services. We understand the critical role these inverters play in your CNC machinery and automation systems. Our experienced technicians are equipped to diagnose and repair a wide range of Mazak inverter issues, ensuring your equipment is back up and running as quickly as possible. Trust Roc Industrial LLC for all your Mazak inverter service needs.



About Mazak Inverters

Mazak is a globally recognized leader in the manufacturing of CNC machine tools, known for their precision, reliability, and advanced technology. Mazak inverters are integral components of these machines, responsible for controlling the speed and torque of motors used in various applications, including spindle drives, axis drives, and coolant pumps. These inverters are designed to provide precise motor control, contributing to the overall performance and efficiency of Mazak CNC machines.


Mazak inverters are widely used in industries such as aerospace, automotive, medical, and general manufacturing, where high precision and reliability are paramount. Their robust design and advanced features make them a popular choice for demanding applications that require precise motor control and consistent performance. A malfunctioning Mazak inverter can lead to significant downtime and production losses, making timely and reliable repair services essential.



Supported Models & Series

We repair a wide range of Mazak inverter models and series, including but not limited to:

  • Mazak Freqrol Series Inverters

  • Mazak Vari-Speed Series Inverters

  • Mazak Inverter Drive Units (various models)

  • Mazak V7 Series Inverters

  • Mazak V5 Series Inverters

  • Mazak A770 Inverter Series

  • Mazak A740 Inverter Series

  • Mazak spindle drive inverters (all horsepower ratings)

  • Mazak axis drive inverters (all voltage and current ratings)

  • Specific models: FR-SF, FR-SE, FR-SZ, FR-S5E, FR-S52E, FR-A, FR-E, FR-F, FR-V


Common Mazak Inverter Problems We Repair

Mazak inverters, like all electronic components, are susceptible to failure over time. We understand the frustration and downtime that these issues can cause. Here are some of the most common problems we repair:

  • No Output: The inverter fails to provide any output voltage or current to the motor.

  • Overvoltage/Undervoltage Errors: The inverter detects voltage levels outside the acceptable range.

  • Overcurrent Errors: The inverter detects excessive current draw, often indicating a motor or wiring issue.

  • Communication Errors: The inverter fails to communicate with the CNC controller or other devices.

  • Overheating: The inverter overheats due to excessive load, inadequate cooling, or component failure.

  • Blown Fuses: Fuses blow due to short circuits or overcurrent conditions.

  • Drive Faults: Internal drive components fail, causing the inverter to shut down.

  • Parameter Loss: The inverter loses its programmed parameters, requiring reprogramming.

  • Inconsistent Spindle Speed: The spindle speed fluctuates erratically.

  • Encoder Faults: Errors related to the motor encoder feedback.

  • Power Supply Issues: Problems with the internal power supply of the inverter.

  • IGBT Failures: Failures of the Insulated Gate Bipolar Transistors (IGBTs) used for switching.


Our Mazak Inverter Repair Process

Roc Industrial LLC follows a comprehensive and meticulous repair process to ensure the highest quality Mazak inverter repairs. Our process is designed to identify the root cause of the problem and implement effective solutions that restore your inverter to optimal performance.

  1. Free Evaluation and Quote: We offer a free evaluation of your Mazak inverter to determine the extent of the damage and provide you with a detailed repair quote. There are no hidden fees, and you are under no obligation to proceed with the repair.

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

  3. Diagnosis Using Specialized Test Equipment: Our experienced technicians use advanced diagnostic tools and techniques to pinpoint the exact cause of the inverter failure. We perform thorough testing of all critical components to identify any underlying issues.

  4. Component-Level Repair and Replacement: We perform component-level repairs whenever possible, replacing only the faulty components with high-quality replacements. This approach helps to minimize repair costs and turnaround time. We maintain a large inventory of Mazak inverter components to ensure quick turnaround.

  5. Load Testing and Quality Checks: After the repair is complete, we subject the inverter to rigorous load testing to ensure it performs reliably under real-world operating conditions. We also conduct thorough quality checks to verify that all repairs meet our stringent standards. Mazak inverter calibration and testing are crucial steps in our process.

  6. Warranty-Backed Return and Support: We stand behind our repairs with a comprehensive warranty. If you experience any issues with your repaired inverter, simply contact us, and we will resolve the problem promptly. We also provide ongoing technical support to answer any questions you may have.


Nationwide Repair Services

Roc Industrial LLC provides Mazak inverter repair services to customers nationwide. Whether you are located in New York, Los Angeles, Chicago, Houston, Dallas, or any other city in the United States, we can help. We offer fast shipping options and quick turnaround times to minimize downtime and get your equipment back up and running as soon as possible.


We understand the importance of minimizing downtime in your operations. That's why we offer expedited repair services and work diligently to get your Mazak inverter back to you as quickly as possible. Our nationwide service network ensures that you receive timely and reliable support, no matter where you are located.



Why Choose Roc Industrial LLC?

When it comes to Mazak inverter repair, Roc Industrial LLC is the trusted choice for businesses across the country. Here are just a few reasons why:

  • 30+ Years of Experience: We have been providing expert industrial electronic repair services for over 30 years.

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

  • Thousands of Parts in Stock: We maintain a large inventory of Mazak inverter components to ensure quick turnaround.

  • Fast Turnaround, Often Same-Day: We offer expedited repair services to minimize downtime.

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

  • Exceptional Customer Support: We are committed to providing exceptional customer support and answering any questions you may have.

  • Free Evaluation: We provide a free evaluation to determine the extent of the damage.

  • Component-Level Expertise: Our technicians are skilled in component-level troubleshooting and repair.

  • Advanced Testing Capabilities: We use state-of-the-art equipment for thorough testing and validation.

Don't let a faulty Mazak inverter slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable Mazak inverter repair. We are your trusted partner for Mazak inverter calibration and testing.

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