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Hitachi resolver repair industrial automation

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 to keep your industrial automation equipment running smoothly. We understand the critical role resolvers play in your operations, and our experienced technicians are equipped to diagnose and repair a wide range of issues. Trust Roc Industrial LLC for all your Hitachi resolver repair needs, ensuring minimal disruption and maximum productivity. We offer quick turnaround times, comprehensive testing, and warranty-backed repairs, making us the trusted partner for industrial maintenance and repair solutions.



About Hitachi Resolvers

Hitachi is a globally recognized leader in industrial automation, and their resolvers are integral components in many servo systems, robotics applications, and CNC machinery. Hitachi resolvers are known for their robustness, accuracy, and reliability in providing precise position feedback. These resolvers are designed to withstand harsh industrial environments and deliver consistent performance over extended periods. Hitachi's commitment to innovation and quality has made their resolvers a preferred choice for manufacturers seeking dependable motion control solutions.


Hitachi resolvers are widely used in various industries, including manufacturing, automotive, aerospace, and robotics. They are essential for precise control and positioning in applications such as CNC machines, servo motors, and automated assembly lines. The durability and accuracy of Hitachi resolvers make them a critical component in ensuring the efficiency and reliability of industrial processes. Roc Industrial LLC recognizes the importance of these components and provides specialized repair services to maintain their optimal performance.



Supported Models & Series

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

  • Hitachi R Series Resolvers

  • Hitachi S Series Resolvers

  • Hitachi S1 Series Resolvers

  • Hitachi F Series Resolvers

  • Hitachi HG Series Resolvers

  • Hitachi H Series Resolvers

  • Hitachi Brushless Resolvers

  • Hitachi AC Servo Motor Resolvers

  • Hitachi Incremental Resolvers

  • Hitachi Absolute Resolvers


Common Hitachi Resolver Problems We Repair

Hitachi resolvers, while robust, can experience failures due to wear, environmental factors, or electrical issues. Recognizing these common problems is the first step in ensuring timely repairs and preventing further damage. Roc Industrial LLC is experienced in addressing a wide array of Hitachi resolver malfunctions.

  • Loss of Signal: Complete or intermittent loss of position feedback signal.

  • Inaccurate Readings: Resolver providing incorrect or inconsistent position data.

  • Signal Noise: Excessive noise in the resolver signal, leading to erratic behavior.

  • Open or Shorted Windings: Damage to the resolver windings, causing electrical faults.

  • Contamination: Ingress of dirt, oil, or other contaminants affecting performance.

  • Bearing Failure: Worn or damaged bearings causing mechanical issues and signal instability.

  • Connector Damage: Damaged or corroded connectors leading to signal interruption.

  • Overheating: Excessive heat buildup due to overload or environmental factors.

  • Encoder Faults: Issues with the encoder component of the resolver (if applicable).

  • Vibration Damage: Damage caused by excessive vibration in the operating environment.


Our Hitachi Resolver Repair Process

Roc Industrial LLC follows a meticulous and comprehensive repair process to ensure that your Hitachi resolver is restored to optimal performance. Our process is designed to identify and address all potential issues, providing a reliable and long-lasting repair.

  1. Free Evaluation and Quote: We begin with a thorough evaluation of your Hitachi resolver to identify the root cause of the problem. This evaluation is provided free of charge, and we will provide you with a detailed quote for the repair before proceeding.

  2. Shipping Instructions: Once you approve the quote, we will provide you with detailed 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 state-of-the-art test equipment to diagnose the resolver. This includes electrical testing, signal analysis, and mechanical inspection to pinpoint all potential issues.

  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 quickly address most issues.

  5. Load Testing and Quality Checks: After the repair, we conduct rigorous load testing to ensure the resolver performs to its original specifications. This includes testing under various operating conditions 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 ensure your complete satisfaction.


Nationwide Repair Services

Roc Industrial LLC provides Hitachi resolver 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 in operation as quickly as possible. Whether you are located in New York, Los Angeles, Chicago, Houston, or Dallas, we are here to support your repair needs.


Our nationwide service network ensures that you receive timely and efficient support, regardless of your location. We work with trusted shipping partners to provide reliable transportation for your equipment. Roc Industrial LLC is committed to providing exceptional service and support to all our customers, ensuring that your industrial automation equipment operates at peak performance.



Why Choose Roc Industrial LLC?

When it comes to Hitachi resolver repair, Roc Industrial LLC stands out as the premier choice. Our commitment to quality, expertise, and customer satisfaction sets us apart from the competition.

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

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

  • Thousands of Parts in Stock: Our extensive inventory of parts allows us to quickly address most issues, minimizing downtime and getting your equipment back in operation faster.

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

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

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 your trusted partner for industrial automation repair solutions.

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