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Okuma inverter testing for downtime recovery

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.

Okuma Inverter Repair Services by Roc Industrial LLC

Is your Okuma inverter causing unexpected downtime? Roc Industrial LLC specializes in providing fast, reliable, and expert Okuma inverter repair services to get your critical machinery back up and running. We understand the importance of minimizing disruptions to your operations, and our team is dedicated to delivering high-quality repairs with quick turnaround times. Trust Roc Industrial LLC as your trusted partner for all your Okuma inverter service needs.



About Okuma Inverters

Okuma is a globally recognized leader in CNC machine tools and related technologies, and their inverters are integral components in many of their systems. Okuma inverters are known for their precision, reliability, and advanced features, playing a crucial role in controlling motor speed and torque in CNC machines, robotics, and other automated systems. These inverters are designed to provide optimal performance and efficiency, contributing to the overall productivity and accuracy of manufacturing processes.


Okuma inverters are widely used in industries such as aerospace, automotive, medical, and general manufacturing. Their applications range from controlling spindle motors and feed drives in CNC machines to managing the power supply in robotic arms and automated assembly lines. The robust design and advanced control algorithms of Okuma inverters make them a preferred choice for demanding applications that require precise and reliable motor control. When these critical components fail, Roc Industrial LLC is here to provide expert Okuma inverter repair services.



Supported Models & Series

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

  • Okuma E4809-770-043-C Inverter Series: Including models for various horsepower ratings and voltage inputs.

  • Okuma E4809-045-063 Inverter Series: Commonly found in smaller CNC lathes and milling machines.

  • Okuma BL-D Series Inverters: Designed for brushless DC motors, offering high precision and efficiency.

  • Okuma BLII-D Series Inverters: An updated version of the BL-D series, with enhanced features and performance.

  • Okuma VAC Series Inverters: Suitable for a wide range of applications, providing reliable motor control.

  • Okuma Vector Control Inverters: Advanced inverters offering precise control and energy efficiency.

  • Okuma Spindle Drive Inverters: Specifically designed for controlling spindle motors in CNC machines.

  • Okuma Servo Drive Inverters: Used in servo systems for precise positioning and motion control.

  • Okuma Power Supply Inverters: Integrated power supply and inverter units for compact designs.

  • Okuma Legacy Inverter Models: We also offer repair services for older, discontinued Okuma inverter models.


Common Okuma Inverter Problems We Repair

Okuma inverters, like all electronic devices, can experience failures over time. We specialize in diagnosing and repairing a wide range of issues to restore your equipment to optimal performance.

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

  • Overvoltage Faults: The inverter detects an overvoltage condition and shuts down to protect the motor and itself.

  • Undervoltage Faults: The inverter detects an undervoltage condition, often due to power supply issues.

  • Overcurrent Faults: The inverter detects excessive current draw, indicating a potential motor or wiring problem.

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

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

  • Blown Fuses: Fuses blow due to short circuits or overloads within the inverter.

  • Encoder Faults: Issues with the encoder feedback signal, leading to inaccurate motor control.

  • Drive Not Ready: The inverter fails to initialize or enter the ready state.

  • Internal Component Failures: Failures of capacitors, IGBTs, diodes, or other internal components.

  • Ground Faults: Detection of current leakage to ground, indicating insulation breakdown.

  • Parameter Loss: Loss of programmed parameters, requiring reprogramming of the inverter.


Our Okuma Inverter Repair Process

Roc Industrial LLC follows a meticulous repair process to ensure the highest quality and reliability of our Okuma inverter repairs:

  1. Free Evaluation and Quote: We offer a free evaluation of your Okuma inverter to determine the extent of the damage and provide a detailed repair quote.

  2. Shipping Instructions: We provide clear instructions on how to safely package and ship your inverter to our repair facility.

  3. Diagnosis Using Specialized Test Equipment: Our experienced technicians use advanced diagnostic tools and techniques to pinpoint the root cause of the problem. We utilize specialized Okuma inverter testing equipment to simulate real-world operating conditions.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements. We stock thousands of parts to expedite the repair process.

  5. Load Testing and Quality Checks: After the repair, we conduct rigorous load testing and quality checks to ensure the inverter meets or exceeds original performance specifications.

  6. Warranty-Backed Return and Support: All our Okuma inverter repairs are backed by a comprehensive warranty. We also provide ongoing technical support to address any questions or concerns you may have.


Nationwide Repair Services

Roc Industrial LLC provides Okuma inverter repair services to customers nationwide. Whether you are located in New York, Los Angeles, Chicago, Houston, or Dallas, we can help you get your equipment back up and running quickly. We offer fast shipping options and quick turnaround times to minimize downtime.



Why Choose Roc Industrial LLC?

When you choose Roc Industrial LLC for your Okuma inverter repair needs, you benefit from:

  • 30+ Years of Experience: Our technicians have decades of experience in repairing industrial electronic equipment, including Okuma inverters.

  • Warranty-Backed Repairs: All our repairs are backed by a comprehensive warranty, giving you peace of mind.

  • Thousands of Parts in Stock: We maintain a large inventory of Okuma inverter parts to expedite the repair process.

  • Fast Turnaround, Often Same-Day: We understand the importance of minimizing downtime and 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 reliability.

  • Exceptional Customer Support: Our dedicated customer support team is available to answer your questions and provide assistance throughout the repair process.

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

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