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Emergency Hitachi servo drive rebuild

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 Drive Repair Services - Fast & Reliable

Is your Hitachi servo drive malfunctioning and causing downtime? Roc Industrial LLC specializes in providing rapid and reliable Hitachi servo drive repair services to get your equipment back up and running quickly. We understand the critical role servo drives play in your automation systems, and our experienced technicians are equipped to diagnose and repair a wide range of issues. Trust Roc Industrial LLC for expert Hitachi servo drive repair, service, and troubleshooting.



About Hitachi Servo Drives

Hitachi is a globally recognized leader in industrial automation, and their servo drives are renowned for their precision, performance, and reliability. Hitachi servo drives are integral components in a variety of applications, including CNC machines, robotics, packaging equipment, and other automated systems. These drives provide precise control over motor speed and position, ensuring accurate and efficient operation. Hitachi offers a comprehensive range of servo drive models designed to meet the diverse needs of modern manufacturing and automation environments. Their reputation for quality and innovation has made them a preferred choice for industries worldwide.


Hitachi servo drives are widely used in industries such as automotive manufacturing, aerospace, food processing, and electronics assembly. Their ability to deliver precise motion control makes them essential for tasks requiring high accuracy and repeatability. From simple point-to-point movements to complex multi-axis coordinated motion, Hitachi servo drives provide the performance and reliability that demanding applications require. Roc Industrial LLC understands the critical role these drives play in your operations and is dedicated to providing top-notch repair services to minimize downtime and maximize productivity.



Supported Models & Series

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

  • Hitachi Servo Amplifier Series: BL Series, BX Series, CL Series, CX Series

  • Hitachi Servo Motor Series: BL-D Series, BL-P Series, BL-U Series

  • Hitachi Inverter Series: SJ Series, WJ Series

  • Hitachi Vector Control Drives: SJ700 Series, WJ200 Series

  • Hitachi AC Servo Drives: Various legacy and current models

  • Hitachi Brushless Servo Motors: Specific models based on horsepower and voltage

  • Hitachi CNC Servo Systems: Complete system repair and component replacement


Common Hitachi Servo Drive Problems We Repair

Hitachi servo drives, while reliable, can experience failures due to various factors such as age, environmental conditions, and operational stress. Roc Industrial LLC is experienced in diagnosing and repairing a wide array of common issues.

  • No Output: The servo drive fails to provide power to the motor, resulting in no movement.

  • Overvoltage/Undervoltage Errors: The drive detects voltage levels outside the acceptable range, triggering a fault.

  • Communication Errors: The drive loses communication with the controller or other devices in the system.

  • Overheating: The drive's internal temperature exceeds safe limits, leading to shutdown or damage.

  • Blown Fuses: Internal fuses blow due to overcurrent or short circuits.

  • Encoder Faults: The encoder, which provides feedback on motor position, malfunctions or fails.

  • Motor Stalling: The motor stops unexpectedly, often due to overload or drive malfunction.

  • Positioning Errors: The servo drive fails to accurately position the motor.

  • Excessive Vibration: The motor vibrates excessively, indicating a potential problem with the drive or motor.

  • Drive Not Powering On: The drive fails to power on, indicating a power supply or internal component failure.

  • Software or Firmware Issues: Corrupted or outdated software can cause operational problems.


Our Hitachi Servo Drive Repair Process

Roc Industrial LLC follows a meticulous and comprehensive repair process to ensure the highest quality and reliability of our Hitachi servo drive repairs:

  1. Free Evaluation and Quote: We begin with a free evaluation of your faulty Hitachi servo drive to determine the extent of the damage and provide you with a detailed repair quote. This includes a thorough inspection and preliminary diagnosis.

  2. Shipping Instructions: Once you approve the quote, we provide clear and easy-to-follow shipping instructions to ensure your servo drive arrives safely at our repair facility. We can also arrange for pickup in certain areas.

  3. Diagnosis Using Specialized Test Equipment: Our experienced technicians use advanced diagnostic tools and equipment to pinpoint the root cause of the problem. This includes testing individual components and simulating real-world operating conditions.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements. We stock thousands of parts to expedite the repair process.

  5. Load Testing and Quality Checks: After the repair, we perform rigorous load testing and quality checks to ensure the servo drive meets or exceeds original performance specifications. This includes testing under various load conditions and monitoring performance parameters.

  6. Warranty-Backed Return and Support: All our Hitachi servo drive 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 servo drive repair services to customers nationwide. We understand that downtime can be costly, so we offer fast turnaround times and reliable service, no matter where you are located.


We serve customers in major metro areas including New York, Los Angeles, Chicago, Houston, and Dallas, as well as smaller cities and rural areas across the country. Our fast shipping options and efficient repair process ensure that you receive your repaired servo drive as quickly as possible. We are committed to minimizing your downtime and maximizing your productivity.



Why Choose Roc Industrial LLC?

When you choose Roc Industrial LLC for your Hitachi servo drive repair needs, you benefit from our:

  • 30+ Years of Experience: Our technicians have decades of experience repairing industrial electronic equipment, including Hitachi servo drives.

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

  • Thousands of Parts in Stock: We maintain a large inventory of parts to expedite the repair process and minimize downtime.

  • Fast Turnaround, Often Same-Day: We understand the urgency of your repair needs and 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: Our dedicated customer support team is available to answer your questions and provide assistance throughout the repair process.

Don't let a faulty Hitachi servo drive slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable repair. We are your trusted partner for Hitachi servo drive service and troubleshooting.

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