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Hitachi resolver calibration troubleshooting guide

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.

Hitachi Resolver Repair Services by Roc Industrial LLC

Is your Hitachi resolver malfunctioning and causing downtime? Roc Industrial LLC specializes in providing fast, reliable, and expert Hitachi resolver repair services. We understand the critical role resolvers play in your industrial automation systems. Our experienced technicians are equipped to diagnose and repair a wide range of Hitachi resolver issues, ensuring your equipment is back up and running quickly. Trust Roc Industrial LLC for all your Hitachi resolver repair needs, offering unparalleled expertise and customer service.



About Hitachi Resolvers

Hitachi is a globally recognized leader in industrial automation, and their resolvers are renowned for their precision and durability. Hitachi resolvers are essential components in various applications, including robotics, CNC machines, and other motion control systems. These resolvers provide accurate position and velocity feedback, enabling precise control and efficient operation. Hitachi's commitment to quality and innovation has made their resolvers a trusted choice for demanding industrial environments.


Hitachi resolvers are widely used in industries such as manufacturing, automotive, and aerospace, where precise motion control is paramount. Their robust design and reliable performance make them ideal for harsh operating conditions. Whether it's a high-speed robotic arm or a precision CNC milling machine, Hitachi resolvers deliver the accuracy and dependability required for optimal performance. Roc Industrial LLC understands the importance of these components and provides specialized repair services to ensure their continued functionality.



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 F2 Series Resolvers

  • Hitachi H Series Resolvers

  • Hitachi HR Series Resolvers

  • Hitachi Low-Voltage Resolvers

  • Hitachi High-Voltage Resolvers

  • Hitachi Brushless Resolvers

  • Hitachi Servo Motor Resolvers (various models)

  • Hitachi Spindle Motor Resolvers (various models)


Common Hitachi Resolver Problems We Repair

Hitachi resolvers, while robust, can experience failures due to wear and tear, environmental factors, or electrical issues. Recognizing these problems early can prevent further damage and minimize downtime. Roc Industrial LLC is experienced in diagnosing and repairing a wide array of Hitachi resolver problems.

  • Loss of Signal: Resolver outputs may become weak or disappear entirely, indicating internal damage or connection issues.

  • Inaccurate Readings: The resolver may provide incorrect position or velocity data, leading to control system errors.

  • Overheating: Excessive heat can damage the resolver's internal components, causing performance degradation or failure.

  • Contamination: Exposure to dust, oil, or other contaminants can interfere with the resolver's operation.

  • Bearing Failure: Worn or damaged bearings can cause excessive vibration and inaccurate readings.

  • Winding Damage: Shorted or open windings can result in signal loss or inaccurate feedback.

  • Communication Errors: Issues with the resolver's communication interface can prevent data transmission to the control system.

  • Encoder Faults: Resolvers integrated with encoders may experience encoder-related failures.

  • Calibration Drift: Resolvers may lose their calibration over time, leading to inaccurate position feedback.

  • Mechanical Damage: Physical damage to the resolver housing or shaft can impair its functionality.


Our Hitachi Resolver Repair Process

Roc Industrial LLC follows a meticulous repair process to ensure the highest quality and reliability of our Hitachi resolver repair services. Our process is designed to quickly identify and resolve issues, minimizing downtime and maximizing the lifespan of your equipment.

  1. Free Evaluation and Quote: We begin with a free evaluation of your Hitachi resolver to determine the extent of the damage and provide you with a detailed repair quote. There are no hidden fees or obligations.

  2. Shipping Instructions: Once you approve the quote, we provide clear and concise shipping instructions to ensure your resolver 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 equipment to pinpoint the root cause of the problem. We thoroughly test all components to identify any hidden issues.

  4. Component-Level Repair and Replacement: We perform component-level repairs whenever possible, replacing only the faulty parts with high-quality replacements. This approach saves you money and reduces waste.

  5. Load Testing and Quality Checks: After the repair, we subject the resolver to rigorous load testing to ensure it meets or exceeds original performance specifications. We also conduct thorough quality checks to verify its reliability.

  6. Warranty-Backed Return and Support: All our Hitachi resolver repairs are backed by a comprehensive warranty. We also provide ongoing technical support to answer any questions you may have.


Nationwide Repair Services

Roc Industrial LLC proudly offers our expert Hitachi resolver repair services to customers nationwide. No matter where you are located, we can provide fast and reliable repair solutions to keep your operations running smoothly. We understand the urgency of getting your equipment back online, and we are committed to providing quick turnaround times.


We serve customers in major metro areas such as New York, Los Angeles, Chicago, Houston, and Dallas, as well as smaller cities and rural areas across the country. Our streamlined shipping process and efficient repair services ensure that you receive your repaired Hitachi resolver as quickly as possible. We offer various shipping options to meet your specific needs, including expedited shipping for critical applications.



Why Choose Roc Industrial LLC?

When it comes to Hitachi resolver repair, Roc Industrial LLC is the trusted choice for businesses across the nation. We offer a unique combination of expertise, experience, and customer service that sets us apart from the competition.

  • 30+ Years of Experience: Our technicians have decades of experience repairing Hitachi resolvers and other industrial automation equipment.

  • Warranty-Backed Repairs: We stand behind our work with a comprehensive warranty on all Hitachi resolver repairs.

  • Thousands of Parts in Stock: We maintain a large inventory of Hitachi resolver parts to ensure fast turnaround times.

  • Fast Turnaround, Often Same-Day: We understand the importance of minimizing downtime, and we offer expedited repair services whenever possible.

  • ISO-Certified Repair Processes: Our repair processes are ISO-certified to ensure the highest quality and consistency.

  • Exceptional Customer Support: Our friendly and knowledgeable customer support team is always available to answer your questions and provide assistance.

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. We are committed to providing the highest quality repair services and exceptional customer support. Trust Roc Industrial LLC to keep your industrial automation systems running smoothly.

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