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Okuma Certified Servo Drive Repair Experts

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 Servo Drive Repair Services by Roc Industrial LLC

Is your Okuma servo drive malfunctioning and causing downtime? Roc Industrial LLC specializes in providing fast, reliable, and expert Okuma servo drive repair services. Servo drives are critical components in many industrial automation systems, controlling the precise movement of motors in applications like CNC machines and robotics. When an Okuma servo drive fails, it can bring your entire operation to a standstill. Roc Industrial LLC offers the expertise, speed, and reliability you need to get your equipment back up and running quickly. We are your trusted partner for Okuma servo drive repair, offering comprehensive testing, component-level repairs, and warranty-backed service.



About Okuma and Their Servo Drives

Okuma is a globally recognized leader in CNC machine tools and industrial control systems, renowned for their precision, reliability, and innovation. Okuma servo drives are integral to the performance of their CNC machines, providing the precise motor control necessary for high-accuracy machining operations. These servo drives are designed to work seamlessly with Okuma's CNC controllers and motors, ensuring optimal performance and reliability. Okuma's commitment to quality and innovation has made them a trusted brand in industries such as aerospace, automotive, and medical device manufacturing.


Okuma servo drives are used extensively in CNC milling machines, lathes, and other precision machining equipment. They are designed to provide precise control over the position, speed, and torque of the machine's axes, enabling the production of complex parts with tight tolerances. The reliability and performance of Okuma servo drives are critical to the overall productivity and quality of manufacturing operations. Roc Industrial LLC understands the importance of minimizing downtime and offers specialized repair services to keep your Okuma equipment running smoothly.



Supported Okuma Servo Drive Models & Series

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

  • Okuma BL-D Series: BL-D20, BL-D30, BL-D50, BL-D70, BL-D100

  • Okuma BL-DU Series: BL-DU15, BL-DU30, BL-DU50, BL-DU70, BL-DU100

  • Okuma E4809 Series: E4809-045-052, E4809-045-055, E4809-045-058

  • Okuma E4404 Series: E4404-045-056, E4404-045-058, E4404-045-060

  • Okuma Servo Pack Series: Including various models within the Servo Pack family, often designated with alphanumeric codes.

  • Okuma Drive Units: Including models such as the OSP series and associated drive units.

  • Okuma Spindle Drives: We also service Okuma spindle drives, crucial for maintaining precise spindle control in CNC machines.

  • Okuma Power Supplies: Repair services extend to the power supplies that support Okuma servo systems.

If you don't see your specific Okuma servo drive model listed, please contact us. Our experienced technicians can repair a wide variety of Okuma servo drives, even older or less common models. We are committed to providing comprehensive repair solutions for all your Okuma equipment.



Common Okuma Servo Drive Problems We Repair

Okuma servo drives are known for their reliability, but like all electronic equipment, they can experience failures over time. These failures can lead to decreased performance, machine downtime, and costly repairs. Roc Industrial LLC specializes in diagnosing and repairing a wide range of common Okuma servo drive problems.

  • No Output: The servo drive fails to provide any output voltage or current to the motor, preventing it from operating.

  • Overvoltage Errors: The servo drive detects an overvoltage condition, which can be caused by faulty power supplies or regenerative braking issues.

  • Overcurrent Errors: The servo drive detects an overcurrent condition, often caused by motor faults, wiring problems, or drive component failures.

  • Communication Errors: The servo drive loses communication with the CNC controller, preventing it from receiving commands and providing feedback.

  • Overheating: The servo drive overheats due to excessive load, inadequate cooling, or component failures.

  • Blown Fuses: Fuses blow repeatedly, indicating a short circuit or other electrical fault within the servo drive.

  • Encoder Faults: The encoder, which provides feedback on the motor's position and speed, malfunctions, leading to inaccurate control.

  • Positioning Errors: The servo drive is unable to accurately position the motor, resulting in errors in the machining process.

  • Drifting: The motor drifts from its commanded position, indicating a problem with the servo drive's control loop or feedback system.

  • Excessive Vibration: The motor vibrates excessively, which can be caused by imbalances, loose connections, or servo drive issues.

  • Alarm Codes: Displaying specific alarm codes that indicate internal faults or external issues affecting the drive's operation.


Our Okuma Servo Drive Repair Process

Roc Industrial LLC follows a rigorous and comprehensive repair process to ensure that your Okuma servo drive is restored to optimal performance. Our experienced technicians use specialized test equipment and component-level repair techniques to diagnose and fix a wide range of problems.

  1. Free Evaluation and Quote: We offer a free evaluation of your Okuma servo drive to determine the extent of the damage and provide you with a detailed repair quote. There is no obligation to proceed with the repair.

  2. Shipping Instructions: Once you approve the quote, we provide you with detailed shipping instructions to ensure that your servo drive is safely transported to our repair facility. We recommend using a reputable shipping carrier and properly packaging the unit to prevent further damage during transit.

  3. Diagnosis Using Specialized Test Equipment: Our technicians use specialized test equipment to thoroughly diagnose the servo drive and identify the root cause of the problem. This includes testing the power supply, control circuitry, and motor drive components.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements. This includes replacing capacitors, resistors, transistors, integrated circuits, and other critical components.

  5. Load Testing and Quality Checks: After the repair is completed, we perform load testing and quality checks to ensure that the servo drive is functioning properly and meeting all performance specifications. This includes testing the output voltage, current, and frequency, as well as verifying the accuracy of the encoder feedback.

  6. Warranty-Backed Return and Support: We back our repairs with a comprehensive warranty, giving you peace of mind that your servo drive is protected. We also provide ongoing technical support to answer any questions you may have and ensure that your equipment is running smoothly.


Nationwide Okuma Servo Drive Repair Services

Roc Industrial LLC provides Okuma servo drive repair services to customers nationwide. We understand that downtime can be costly, so we offer fast turnaround times and reliable service to minimize disruption to your operations. Whether you are located in New York, Los Angeles, Chicago, Houston, Dallas, or any other city in the United States, we can help you get your Okuma servo drives back up and running quickly.


We offer fast shipping options and quick turnaround times to minimize downtime. Our experienced technicians are available to provide technical support and answer any questions you may have. We are committed to providing exceptional customer service and ensuring that your Okuma servo drives are repaired to the highest standards.



Why Choose Roc Industrial LLC?

When you need reliable Okuma servo drive repair services, Roc Industrial LLC is the clear choice. We offer a combination of experience, expertise, and customer service that is unmatched in the industry.

  • 30+ Years of Experience: We have over 30 years of experience in repairing industrial electronic equipment, including Okuma servo drives.

  • Warranty-Backed Repairs: We back our repairs with a comprehensive warranty, giving you peace of mind that your equipment is protected.

  • Thousands of Parts in Stock: We maintain a large inventory of parts, allowing us to quickly repair your Okuma servo drive and minimize downtime.

  • Fast Turnaround, Often Same-Day: We offer fast turnaround times, often completing repairs the same day they are received.

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

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

Don't let a faulty Okuma servo drive slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable Okuma servo drive repair. We are your trusted partner for all your Okuma servo drive repair needs.

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