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Okuma power supply overvoltage fault exchange program

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 Power Supply Repair Services by Roc Industrial LLC

Is your Okuma power supply experiencing issues? Roc Industrial LLC offers comprehensive Okuma power supply repair services, specializing in rapid turnaround times and reliable solutions. We understand the critical role these power supplies play in your CNC machinery and automation systems. Our experienced technicians are equipped to diagnose and repair a wide range of problems, ensuring your equipment is back up and running as quickly as possible. With decades of experience, Roc Industrial LLC is your trusted partner for all your Okuma power supply service needs. We provide expert troubleshooting, testing, and refurbishment services, including specialized solutions for common issues like overvoltage faults. Our commitment to quality and customer satisfaction makes us the preferred choice for Okuma power supply repairs nationwide. From component-level repairs to complete unit overhauls, we have the expertise and resources to handle any challenge. We also offer an Okuma power supply exchange program to minimize downtime. Trust Roc Industrial LLC to deliver reliable and cost-effective solutions for your Okuma power supply needs. Our services include free evaluations and warranty-backed repairs, providing you with peace of mind. We are dedicated to keeping your operations running smoothly with minimal disruption.



About Okuma Power Supplies

Okuma is a globally recognized leader in CNC machine tools and related technologies, and their power supplies are integral to the performance and reliability of their machines. Okuma power supplies are known for their robust design and ability to deliver stable and consistent power to critical components, ensuring optimal machine performance. These power supplies are designed to meet the demanding requirements of CNC machining, providing the necessary voltage and current to operate motors, controllers, and other essential systems. Okuma's commitment to quality and innovation has made their power supplies a trusted choice in the manufacturing industry.


Okuma power supplies are widely used in various CNC applications, including milling, turning, grinding, and multi-tasking machines. They are designed to provide stable and reliable power to the machine's control system, servo motors, and other critical components. The reliability of Okuma power supplies is crucial for maintaining the precision and efficiency of CNC operations. These power supplies are built to withstand harsh industrial environments and provide consistent performance under demanding conditions. Their advanced features and robust design make them an essential part of any Okuma CNC machine, contributing to the overall productivity and accuracy of manufacturing processes. Roc Industrial LLC understands the intricacies of these power supplies and provides specialized repair services to keep your Okuma machines running at their best.



Supported Models & Series

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

  • E4809-770-012

  • E4809-770-013

  • E4809-770-014

  • BL-D400

  • BL-D700

  • BL-D1000

  • PSU-250

  • PSU-350

  • PSU-450

  • Okuma OSP Series Power Supplies

  • Okuma CNC Power Supply Units

  • Various models from the Okuma E4809 series

  • Power supplies used in Okuma's CNC lathes and machining centers


Common Okuma Power Supply Problems We Repair

Okuma power supplies, while reliable, can experience issues that disrupt your CNC operations. Our team at Roc Industrial LLC is experienced in diagnosing and repairing a wide range of common problems.

  • No Output Voltage: The power supply fails to provide any output voltage, preventing the CNC machine from starting or operating correctly.

  • Overvoltage Fault: The power supply outputs voltage exceeding the specified limits, potentially damaging connected components. This is a common issue we address with our Okuma power supply overvoltage fault exchange program.

  • Undervoltage Fault: The power supply outputs voltage below the specified limits, causing the CNC machine to malfunction or shut down.

  • Communication Errors: The power supply fails to communicate properly with the CNC controller, leading to operational errors.

  • Overheating: The power supply overheats due to component failure, inadequate cooling, or excessive load, causing it to shut down or malfunction.

  • Blown Fuses: Fuses within the power supply blow frequently, indicating an underlying issue such as a short circuit or component failure.

  • Internal Component Failure: Failure of internal components such as capacitors, diodes, or transistors, leading to various malfunctions.

  • Fan Failure: The cooling fan fails, causing the power supply to overheat and potentially fail.

  • Erratic Output: The power supply outputs unstable or fluctuating voltage, causing the CNC machine to operate erratically.

  • Power Surges: Damage caused by power surges or spikes, leading to component failure and operational issues.


Our Okuma Power Supply Repair Process

Roc Industrial LLC follows a meticulous repair process to ensure your Okuma power supply is restored to optimal performance:

  1. Free Evaluation and Quote: We begin with a free evaluation of your Okuma power supply to determine the extent of the damage and provide you with a detailed repair quote.

  2. Shipping Instructions: Once you approve the quote, we provide clear shipping instructions to ensure your power supply arrives safely at our repair facility.

  3. Diagnosis Using Specialized Test Equipment: Our experienced technicians use specialized test equipment to diagnose the root cause of the problem, identifying faulty components and potential underlying issues.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements to ensure long-term reliability.

  5. Load Testing and Quality Checks: After the repair, we conduct rigorous load testing and quality checks to verify that the power supply is functioning correctly and meeting all performance specifications.

  6. Warranty-Backed Return and Support: We back our repairs with a comprehensive warranty, providing you with peace of mind. Our customer support team is available to answer any questions and provide ongoing assistance.


Nationwide Repair Services

Roc Industrial LLC provides Okuma power supply repair services to customers nationwide. We understand the importance of minimizing downtime, and we offer fast shipping options and quick turnaround times to get your equipment back up and running as quickly as possible. Whether you are located in New York, Los Angeles, Chicago, Houston, or Dallas, we are here to serve your repair needs. Our efficient logistics and experienced technicians ensure that your Okuma power supply is repaired quickly and reliably, no matter where you are located. We also offer an Okuma power supply exchange program to further expedite the repair process.



Why Choose Roc Industrial LLC?
  • 30+ Years of Experience: With over 30 years of experience in industrial electronic repair, we have the expertise to handle even the most complex Okuma power supply issues.

  • Warranty-Backed Repairs: We stand behind our work with a comprehensive warranty, providing you with peace of mind.

  • Thousands of Parts in Stock: Our extensive inventory of parts allows us to complete repairs quickly and efficiently.

  • Fast Turnaround, Often Same-Day: We understand the importance of minimizing downtime, and we offer fast turnaround times, often completing repairs on the same day.

  • ISO-Certified Repair Processes: Our ISO-certified repair processes ensure that all repairs are performed to the highest standards of quality and reliability.

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

Don’t let a faulty Okuma power supply slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable Okuma power supply repair. We also offer an Okuma power supply overvoltage fault exchange program to get you back up and running quickly.

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