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Emergency Hitachi resolver 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.

Expert Hitachi Resolver Repair Services

Is your Hitachi resolver malfunctioning and impacting your critical operations? Roc Industrial LLC specializes in providing comprehensive Hitachi resolver repair services to get your equipment back up and running quickly and efficiently. We understand the importance of minimizing downtime, and our team of experienced technicians is dedicated to delivering reliable and cost-effective repair solutions. With our commitment to speed, reliability, and unparalleled expertise, Roc Industrial LLC is your trusted partner for all your Hitachi resolver repair needs.



About Hitachi Resolvers

Hitachi is a globally recognized leader in industrial automation, and their resolvers are integral components in a wide range of applications. Hitachi resolvers are known for their robust design, accuracy, and reliability in demanding environments. These resolvers are crucial for providing precise position and velocity feedback in servo systems, robotics, and other motion control applications. Their durability and performance have made them a staple in industries such as CNC machining, robotics, automation, and manufacturing, where precise motion control is paramount.


Hitachi resolvers are designed to withstand harsh conditions, but even the most robust components can experience failures over time. When a Hitachi resolver malfunctions, it can lead to significant disruptions in your production processes. Roc Industrial LLC offers specialized repair services to address these issues, ensuring that your Hitachi resolvers are restored to optimal performance. Our expertise covers a wide range of Hitachi resolver models, allowing us to provide comprehensive support for your industrial automation needs.



Supported Models & Series

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

  • Hitachi R Series Resolvers

  • Hitachi F Series Resolvers

  • Hitachi F22 Series Resolvers

  • Hitachi R11 Series Resolvers

  • Hitachi R12 Series Resolvers

  • Hitachi R21 Series Resolvers

  • Hitachi R22 Series Resolvers

  • Hitachi High-Resolution Resolvers

  • Hitachi Brushless Resolvers

  • Hitachi Servo Motor Resolvers (various models)

If you don't see your specific Hitachi resolver model listed, please contact us. Our expertise extends to a wide variety of models and configurations, and we are confident in our ability to provide effective repair solutions for your specific needs.



Common Hitachi Resolver Problems We Repair

Customers often experience a variety of issues with their Hitachi resolvers, ranging from performance degradation to complete failure. These problems can stem from various factors, including wear and tear, environmental conditions, and electrical surges. At Roc Industrial LLC, we have extensive experience in diagnosing and repairing these common failures, ensuring that your Hitachi resolvers are restored to optimal functionality.

  • Loss of Signal: Resolvers may experience a loss of signal or intermittent signal, leading to inaccurate position feedback.

  • Encoder Faults: Internal encoder components can fail, resulting in incorrect position readings or complete encoder failure.

  • Communication Errors: Resolvers may experience communication errors with the control system, preventing proper operation.

  • Overheating: Excessive heat can damage the resolver's internal components, leading to premature failure.

  • Contamination: Exposure to contaminants such as dust, oil, or moisture can degrade the resolver's performance and lifespan.

  • Winding Failures: Internal windings can short circuit or open, causing the resolver to malfunction.

  • Bearing Failure: Worn or damaged bearings can cause excessive vibration and noise, leading to inaccurate position feedback.

  • Connector Damage: Damaged connectors can disrupt the signal transmission, resulting in communication errors or signal loss.

  • Low Output Voltage: Reduced output voltage can indicate internal component degradation or failure.

  • Position Inaccuracy: Resolvers may exhibit inaccurate position readings, leading to errors in the controlled system.


Our Hitachi Resolver Repair Process

Roc Industrial LLC follows a rigorous and comprehensive repair process to ensure that your Hitachi resolvers are restored to optimal performance. Our process is designed to identify the root cause of the failure, implement effective repair solutions, and thoroughly test the resolver to guarantee its reliability.

  1. Free Evaluation and Quote: We begin with a free evaluation of your Hitachi resolver to determine the extent of the damage and the necessary repairs. Based on our evaluation, we provide a detailed quote outlining the repair costs and turnaround time.

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

  3. Diagnosis Using Specialized Test Equipment: Upon arrival, our experienced technicians conduct a thorough diagnosis using specialized test equipment. This allows us to pinpoint the exact cause of the failure and identify any underlying issues that may need to be addressed.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements. Our extensive inventory of parts allows us to expedite the repair process and minimize downtime. We use only industry-leading components to ensure the longevity and reliability of our repairs.

  5. Load Testing and Quality Checks: After the repairs are completed, we conduct rigorous load testing and quality checks to ensure that the resolver is functioning properly and meeting all performance specifications. This includes testing the resolver under various load conditions to simulate real-world operating environments.

  6. Warranty-Backed Return and Support: All of our Hitachi resolver repairs are backed by a comprehensive warranty, providing you with peace of mind. We also offer ongoing technical support to address any questions or concerns you may have after the repair is completed. Roc Industrial LLC stands behind the quality of our work and is committed to providing exceptional customer service.


Nationwide Repair Services

Roc Industrial LLC provides Hitachi resolver repair services to customers nationwide. We understand that downtime can be costly, and we are committed to providing fast and reliable repair solutions to minimize disruptions to your operations. Whether you are located in New York, Los Angeles, Chicago, Houston, Dallas, or any other city across the United States, we can help.


We offer fast shipping options and quick turnaround times to ensure that your Hitachi resolvers are repaired and returned to you as quickly as possible. Our nationwide service network allows us to efficiently serve customers across the country, providing timely and cost-effective repair solutions. Contact us today to learn more about our nationwide Hitachi resolver repair services.



Why Choose Roc Industrial LLC?

When it comes to Hitachi resolver repair, Roc Industrial LLC is the clear choice. We offer a unique combination of expertise, experience, and customer service that sets us apart from the competition. Our commitment to quality and reliability ensures that your Hitachi resolvers are repaired to the highest standards, minimizing downtime and maximizing productivity.

  • 30+ Years of Experience: With over 30 years of experience in industrial electronics repair, we have the knowledge and expertise to handle even the most complex Hitachi resolver repairs.

  • Warranty-Backed Repairs: All of our repairs are backed by a comprehensive warranty, providing you with peace of mind and ensuring the quality of our work.

  • Thousands of Parts in Stock: Our extensive inventory of parts allows us to expedite the repair process and minimize downtime.

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

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

  • Exceptional Customer Support: We are committed to providing exceptional customer support, and our team is always available to answer your questions and address your concerns.

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

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