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Heidenhain resolver testing for overheating

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.

Heidenhain Resolver Repair Services by Roc Industrial LLC

Is your Heidenhain resolver malfunctioning? Roc Industrial LLC specializes in comprehensive Heidenhain resolver repair services, ensuring your critical equipment operates at peak performance. Resolvers are vital components in industrial automation, providing precise position feedback in motors and machinery. When they fail, downtime can be costly. Roc Industrial LLC offers fast, reliable, and expert Heidenhain resolver repair services. With decades of experience and a commitment to quality, we are your trusted partner for all your Heidenhain resolver repair needs. We understand the urgency of getting your equipment back online, and our team is dedicated to providing swift and effective solutions.



About Heidenhain Resolvers

Heidenhain is a globally recognized leader in precision measurement and control technology. Their resolvers are renowned for their accuracy, durability, and reliability in demanding industrial environments. Heidenhain resolvers are used extensively in CNC machines, robotics, automation systems, and other applications requiring precise angular position feedback. These resolvers are designed to withstand harsh conditions, including extreme temperatures, vibration, and contamination, making them a preferred choice for critical applications.


Heidenhain resolvers are integral to the smooth and efficient operation of countless industrial processes. Their robust design and high accuracy ensure precise control and positioning, contributing to increased productivity and reduced downtime. However, even the most reliable resolvers can experience failures over time due to wear and tear, environmental factors, or electrical issues. When a Heidenhain resolver malfunctions, it's crucial to have access to expert repair services to minimize disruption and restore optimal performance.



Supported Models & Series

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

  • ROD Series (ROD 426, ROD 436, ROD 456, ROD 466, ROD 486)

  • ERN Series (ERN 1387, ERN 1381, ERN 480, ERN 460)

  • EQN Series (EQN 1325, EQN 1337, EQN 425, EQN 431)

  • ROC Series (ROC 413, ROC 213)

  • Various custom and application-specific Heidenhain resolvers

  • Heidenhain Motor Feedback Systems

  • Heidenhain Encoders with Resolver Interfaces


Common Heidenhain Resolver Problems We Repair

Customers often experience various issues with their Heidenhain resolvers. These problems can range from simple malfunctions to complex failures that require specialized diagnostic and repair expertise. Roc Industrial LLC is equipped to handle a wide array of Heidenhain resolver problems, ensuring your equipment is restored to optimal working condition.

  • No Output Signal: The resolver fails to provide any output signal, preventing the control system from determining the position.

  • Inaccurate Position Feedback: The resolver provides incorrect or inconsistent position data, leading to errors in the controlled system.

  • Signal Distortion: The output signal is distorted or noisy, making it difficult for the control system to interpret the position accurately.

  • Overheating: The resolver overheats during operation, potentially causing damage to the internal components. Heidenhain resolver testing for overheating is a key part of our diagnostic process.

  • Communication Errors: The resolver fails to communicate properly with the control system, resulting in a loss of position feedback.

  • Encoder Faults: Issues with the encoder interface or internal encoder components.

  • Loose Connections: Internal or external connections become loose or corroded, disrupting the signal path.

  • Damaged Windings: The resolver windings are damaged due to electrical surges, overheating, or physical stress.

  • Bearing Failure: The resolver bearings fail, causing excessive friction and inaccurate position feedback.

  • Contamination: The resolver is contaminated by dirt, oil, or other substances, interfering with its operation.

  • Short Circuits: Internal short circuits within the resolver, leading to complete failure.

  • Open Circuits: Open circuits in the resolver windings, preventing signal transmission.


Our Heidenhain Resolver Repair Process

Roc Industrial LLC follows a meticulous and comprehensive repair process to ensure the highest quality Heidenhain resolver repairs. Our process is designed to identify the root cause of the problem, implement effective repairs, and thoroughly test the resolver to guarantee optimal performance.

  1. Free Evaluation and Quote: We begin with a free evaluation of your Heidenhain 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 estimated turnaround time.

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

  3. Diagnosis Using Specialized Test Equipment: Upon receiving your resolver, our experienced technicians conduct a thorough diagnosis using specialized test equipment. This includes electrical testing, mechanical inspection, and signal analysis to pinpoint the exact cause of the failure. We use advanced diagnostic tools to accurately assess the condition of the resolver and identify any underlying issues.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements. Our extensive inventory of Heidenhain resolver parts allows us to quickly and efficiently address a wide range of issues. We use only genuine or equivalent components to ensure the reliability and longevity of our repairs.

  5. Load Testing and Quality Checks: After the repairs are completed, we conduct rigorous load testing and quality checks to verify the resolver's performance. This includes testing the resolver under various operating conditions to ensure it meets or exceeds the original specifications. We simulate real-world operating conditions to ensure the resolver performs reliably in your application.

  6. Warranty-Backed Return and Support: All our Heidenhain resolver repairs are backed by a comprehensive warranty. We stand behind the quality of our workmanship and are committed to providing exceptional customer support. If you experience any issues with your repaired resolver, simply contact us, and we will promptly address your concerns.


Nationwide Repair Services

Roc Industrial LLC provides Heidenhain resolver repair services to customers nationwide. We understand that downtime can be costly, and we are committed to providing fast and reliable repair services 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.


We offer fast shipping options and quick turnaround times to ensure you receive your repaired Heidenhain resolver as quickly as possible. Our streamlined repair process and efficient logistics enable us to provide timely and cost-effective repair services to customers across the country. Contact us today to learn more about our nationwide repair services and how we can help you keep your equipment running smoothly.



Why Choose Roc Industrial LLC?

When it comes to Heidenhain resolver repair, Roc Industrial LLC is the clear choice. We offer a unique combination of experience, expertise, and customer service that sets us apart from the competition. Here are just a few reasons why you should choose Roc Industrial LLC for your Heidenhain resolver repair needs:

  • 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 Heidenhain resolver repairs.

  • Warranty-Backed Repairs: All our Heidenhain resolver 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 Heidenhain resolver parts allows us to quickly and efficiently address a wide range of issues.

  • Fast Turnaround, Often Same-Day: We understand the urgency of getting your equipment back online, and we offer fast turnaround times, often with same-day service available.

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

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

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

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