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Hitachi servo amplifier repair and calibration

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 Servo Amplifier Repair and Calibration Services

Is your Hitachi servo amplifier malfunctioning and causing downtime? Roc Industrial LLC specializes in providing fast, reliable, and expert Hitachi servo amplifier repair services. We understand the critical role these amplifiers play in your automated systems, and we are committed to getting you back up and running quickly. With decades of experience, state-of-the-art diagnostic equipment, and a vast inventory of parts, Roc Industrial LLC is your trusted partner for all your Hitachi servo amplifier repair needs. We offer comprehensive repair, calibration, and testing services to ensure your equipment operates at peak performance.



About Hitachi Servo Amplifiers

Hitachi is a globally recognized leader in industrial automation, and their servo amplifiers are integral components in a wide range of applications. Known for their precision, reliability, and advanced control capabilities, Hitachi servo amplifiers are commonly used in CNC machines, robotics, packaging equipment, and other high-performance automation systems. These amplifiers are designed to provide precise motor control, ensuring accurate positioning and smooth operation. Hitachi servo amplifiers are built to withstand demanding industrial environments, but even the most robust equipment can experience failures over time.


The Hitachi servo amplifier product line includes various models and series designed to meet diverse application requirements. From compact, low-power amplifiers to high-performance, multi-axis controllers, Hitachi offers a solution for virtually any servo application. Their commitment to innovation and quality has made them a preferred choice for manufacturers worldwide. When these critical components fail, it's essential to have a reliable repair partner who understands the intricacies of Hitachi servo amplifier technology. Roc Industrial LLC has the expertise and resources to diagnose and repair a wide range of Hitachi servo amplifier issues, minimizing downtime and maximizing productivity.



Supported Models & Series

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

  • Hitachi Servo Amplifier Series: MDS-A, MDS-B, MDS-C, MDS-D

  • Hitachi Servo Amplifier Models: MDS-A3-CV, MDS-A3-SP, MDS-B1-V1, MDS-B2-CV, MDS-C1-V2, MDS-D1-CV

  • Hitachi Servo Drive Units: Various models within the A, B, C, and D series

  • Hitachi AC Servo Amplifiers: Including models with different voltage and current ratings

  • Hitachi Digital Servo Amplifiers: Designed for high-precision applications

  • Hitachi Analog Servo Amplifiers: Legacy models still widely used in older systems

  • Hitachi Servo Amplifier Modules: For multi-axis control systems


Common Hitachi Servo Amplifier Problems We Repair

Hitachi servo amplifiers, while robust, can experience various issues that can disrupt your operations. These problems can range from simple component failures to more complex system-level issues. Roc Industrial LLC has extensive experience in diagnosing and repairing these common problems, ensuring your equipment is restored to optimal performance.

  • No Output: The amplifier fails to deliver power to the motor, preventing any movement.

  • Overvoltage Errors: The amplifier detects excessive voltage, triggering a fault and shutting down.

  • Overcurrent Errors: The amplifier detects excessive current, indicating a potential short circuit or overload.

  • Communication Errors: The amplifier loses communication with the controller, preventing proper operation.

  • Overheating: The amplifier overheats due to excessive load, inadequate cooling, or component failure.

  • Blown Fuses: Fuses blow due to power surges, short circuits, or component failures within the amplifier.

  • Encoder Faults: The amplifier detects errors in the encoder feedback signal, leading to inaccurate positioning.

  • Positioning Errors: The motor fails to reach the desired position accurately.

  • Drifting: The motor position slowly changes even when it should be stationary.

  • Excessive Vibration: The motor vibrates excessively during operation, indicating a potential instability or component issue.

  • Inconsistent Performance: The amplifier performance varies unpredictably, leading to unreliable operation.

  • Power Supply Issues: Internal power supply components fail, causing the amplifier to malfunction.


Our Hitachi Servo Amplifier Repair Process

Roc Industrial LLC follows a rigorous and comprehensive repair process to ensure the highest quality and reliability of our Hitachi servo amplifier repairs. Our process is designed to identify the root cause of the problem, perform thorough repairs, and verify the amplifier's performance under load.

  1. Free Evaluation and Quote: We begin with a free evaluation of your faulty Hitachi servo amplifier. Our experienced technicians will assess the condition of the amplifier and provide you with a detailed quote for the repair.

  2. Shipping Instructions: Once you approve the quote, we will provide you with clear and concise shipping instructions to ensure your amplifier arrives safely at our repair facility.

  3. Diagnosis Using Specialized Test Equipment: Upon arrival, our technicians will perform a thorough diagnosis using specialized test equipment to pinpoint the exact cause of the failure. We utilize advanced diagnostic tools to identify component-level issues and ensure accurate repairs.

  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 issues.

  5. Load Testing and Quality Checks: After the repair, we conduct rigorous load testing and quality checks to ensure the amplifier performs to its original specifications. We simulate real-world operating conditions to verify the amplifier's reliability.

  6. Warranty-Backed Return and Support: All our Hitachi servo amplifier repairs are backed by a comprehensive warranty. We are committed to providing exceptional customer support and ensuring your satisfaction.


Nationwide Repair Services

Roc Industrial LLC provides Hitachi servo amplifier 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 soon as possible. Whether you are located in New York, Los Angeles, Chicago, Houston, Dallas, or any other city in the United States, we are here to serve your repair needs.


We have established efficient logistics and shipping processes to ensure timely and secure delivery of your repaired Hitachi servo amplifiers. Our team is dedicated to providing exceptional customer service and keeping you informed throughout the repair process. We work closely with our customers to understand their specific requirements and provide tailored solutions to meet their needs.



Why Choose Roc Industrial LLC?

When it comes to Hitachi servo amplifier repair, Roc Industrial LLC stands out as a trusted and reliable partner. We offer a unique combination of experience, expertise, and customer-focused service that 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 servo amplifier repairs.

  • 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 a wide range of issues 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 the highest standards of quality and reliability.

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

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

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