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Haas resolver same-day emergency repair

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.

Haas Resolver Repair Services by Roc Industrial LLC

Is your Haas resolver malfunctioning and causing downtime? Roc Industrial LLC specializes in fast, reliable Haas resolver repair services to get your CNC machines back up and running quickly. Resolvers are critical components in CNC machines, providing essential feedback for accurate positioning and control. We understand the urgency of resolver failures and offer rapid turnaround times, expert diagnostics, and comprehensive repair solutions. Trust Roc Industrial LLC as your trusted partner for all your Haas resolver repair needs.



About Haas Resolvers

Haas Automation is a leading manufacturer of CNC machine tools, renowned for their reliability and performance in various machining applications. Haas resolvers are integral parts of their servo systems, providing precise position feedback to the CNC control. These resolvers are designed to withstand harsh industrial environments and deliver accurate performance over extended periods. However, like any electronic component, resolvers can fail due to wear, contamination, electrical surges, or other factors. A malfunctioning resolver can lead to inaccurate machining, machine downtime, and costly production losses.


Haas resolvers are widely used in CNC mills, lathes, and other automated machinery. They play a crucial role in ensuring accurate tool positioning, smooth motion control, and consistent machining results. The robust design and reliable performance of Haas resolvers have made them a popular choice in the manufacturing industry. When a Haas resolver fails, it's essential to have it repaired quickly and effectively to minimize downtime and maintain production efficiency. Roc Industrial LLC offers comprehensive Haas resolver repair services to address a wide range of issues and restore your equipment to optimal performance.



Supported Haas Resolver Models & Series

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

  • Haas Resolver Assembly 93-4000

  • Haas Resolver Assembly 93-4001

  • Haas Resolver Assembly 93-4002

  • Haas Resolver Assembly 93-4003

  • Haas Resolver Assembly 93-4004

  • Haas Vector Drive Resolver Series

  • Haas Servo Motor Resolver Series

  • Haas Spindle Motor Resolver Series

  • Haas Brushless Servo Motor Resolvers

  • Haas VF Series Resolver Units


Common Haas Resolver Problems We Repair

Customers often experience various issues with their Haas resolvers, leading to machine downtime and performance problems. Roc Industrial LLC specializes in diagnosing and repairing these common failures, ensuring your CNC machines operate smoothly and efficiently.

  • No Signal Output: The resolver fails to send any position feedback to the CNC control, resulting in machine standstill.

  • Inaccurate Position Feedback: The resolver provides incorrect position data, leading to machining errors and dimensional inaccuracies.

  • Intermittent Signal: The resolver signal fluctuates or drops out intermittently, causing jerky motion and inconsistent performance.

  • Excessive Noise: The resolver signal is corrupted by noise, making it difficult for the CNC control to interpret the position data accurately.

  • Encoder Faults: Resolver-related encoder errors are displayed on the CNC control panel.

  • Resolver Overheating: The resolver becomes excessively hot during operation, indicating a potential internal fault.

  • Contamination: The resolver is contaminated with oil, coolant, or other debris, affecting its performance and lifespan.

  • Short Circuits: Internal short circuits within the resolver windings.

  • Open Circuits: Broken or disconnected wiring within the resolver.

  • Drift: Gradual changes in resolver output over time, leading to inaccuracies.


Our Haas Resolver Repair Process

Roc Industrial LLC follows a comprehensive and meticulous repair process to ensure the highest quality and reliability of our Haas resolver repairs. Our experienced technicians use state-of-the-art equipment and proven techniques to diagnose and resolve a wide range of resolver issues.

  1. Free Evaluation and Quote: We offer a free evaluation of your faulty Haas resolver 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 and concise shipping instructions to ensure your resolver arrives safely at our repair facility.

  3. Diagnosis Using Specialized Test Equipment: Our technicians use specialized test equipment to thoroughly diagnose the resolver, identifying the root cause of the failure. We utilize advanced techniques such as signal analysis, impedance testing, and insulation resistance testing to pinpoint the problem.

  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 a wide range of resolver issues.

  5. Load Testing and Quality Checks: After the repair, we perform rigorous load testing and quality checks to ensure the resolver meets or exceeds original performance specifications. We simulate real-world operating conditions to verify the resolver's accuracy, stability, and reliability.

  6. Warranty-Backed Return and Support: All our Haas resolver repairs are backed by a comprehensive warranty, providing you with peace of mind. We also offer ongoing technical support to answer any questions and address any concerns you may have.


Nationwide Repair Services

Roc Industrial LLC provides Haas resolver repair services to customers nationwide. Whether you are located in New York, Los Angeles, Chicago, Houston, Dallas, or any other city in the United States, we can help you get your CNC machines back up and running quickly. We offer fast shipping options and quick turnaround times to minimize downtime and keep your production on schedule.


We understand the importance of minimizing downtime in today's fast-paced manufacturing environment. That's why we offer expedited repair services and work diligently to get your Haas resolver back to you as quickly as possible. Our nationwide network of shipping partners ensures that your resolver is transported safely and efficiently to and from our repair facility.



Why Choose Roc Industrial LLC?

When it comes to Haas 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.

  • 30+ Years of Experience: Our technicians have over 30 years of experience in repairing industrial electronic equipment, including Haas resolvers.

  • Warranty-Backed Repairs: All our Haas resolver repairs are backed by a comprehensive warranty, providing you with peace of mind.

  • Thousands of Parts in Stock: We maintain a large inventory of parts, allowing us to quickly address a wide range of resolver issues.

  • Fast Turnaround, Often Same-Day: We understand the urgency of resolver failures and offer fast turnaround times, often providing same-day repair services for emergency situations.

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

  • Exceptional Customer Support: We are committed to providing exceptional customer support, answering your questions and addressing your concerns promptly and professionally.

Don't let a faulty Haas resolver slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable Haas resolver repair. We are your trusted partner for all your CNC machine repair needs. We also offer Haas resolver troubleshooting, Haas resolver testing, and Haas resolver refurbishment services. Roc Industrial LLC is committed to providing the highest quality Haas resolver service available.

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