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Emergency Heidenhain servo amplifier refurbishment

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.

Emergency Heidenhain Servo Amplifier Refurbishment and Repair Services

Is your Heidenhain servo amplifier malfunctioning and causing critical downtime? Roc Industrial LLC specializes in providing fast, reliable, and expert Heidenhain servo amplifier repair services. We understand the urgency of getting your equipment back online, and our team is dedicated to providing the highest quality repairs with quick turnaround times. Trust Roc Industrial LLC to be your trusted partner for all your Heidenhain servo amplifier repair needs.



About Heidenhain Servo Amplifiers

Heidenhain is a globally recognized leader in precision measurement and control technology, and their servo amplifiers are integral components in a wide range of industrial applications. Known for their exceptional accuracy, reliability, and performance, Heidenhain servo amplifiers are essential for controlling motion in CNC machines, robotics, automation systems, and other high-precision equipment. These amplifiers are designed to deliver precise and responsive control, ensuring optimal performance and productivity in demanding industrial environments.


Heidenhain servo amplifiers are crucial in industries such as manufacturing, aerospace, and automotive, where precise motion control is paramount. Their advanced technology and robust design make them a preferred choice for applications requiring high accuracy, speed, and reliability. When these amplifiers fail, the impact on production can be significant, highlighting the need for prompt and expert repair services. Roc Industrial LLC offers comprehensive repair solutions to keep your Heidenhain servo amplifiers operating at peak performance.



Supported Models & Series

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

  • Heidenhain UM 115 Series

  • Heidenhain UM 121 Series

  • Heidenhain UM 131 Series

  • Heidenhain UM 135 Series

  • Heidenhain UM 141 Series

  • Heidenhain UM 151 Series

  • Heidenhain ERN Series Amplifiers

  • Heidenhain ECN Series Amplifiers

  • Heidenhain PWM Series Amplifiers

  • Heidenhain ERM Series Amplifiers

  • Heidenhain ROC Series Amplifiers

  • Heidenhain AKM Series Amplifiers

  • Heidenhain HR Series Amplifiers

  • Heidenhain iPOS Series Amplifiers

  • Heidenhain Digital Servo Drives

  • Heidenhain Analog Servo Drives


Common Heidenhain Servo Amplifier Problems We Repair

Heidenhain servo amplifiers are known for their reliability, but like all electronic equipment, they can experience failures over time. These failures can lead to significant downtime and reduced productivity. Roc Industrial LLC specializes in diagnosing and repairing a wide range of common issues affecting Heidenhain servo amplifiers.

  • No Output: The amplifier fails to provide any output voltage or current to the motor, preventing it from operating.

  • Overvoltage Errors: The amplifier detects an overvoltage condition, causing it to shut down to protect itself and connected equipment.

  • Undervoltage Errors: The amplifier detects an undervoltage condition, often due to power supply issues or excessive load.

  • Communication Errors: The amplifier loses communication with the control system, preventing proper operation and control.

  • Overheating: The amplifier overheats due to excessive load, insufficient cooling, or component failure, leading to shutdown or damage.

  • Blown Fuses: Fuses within the amplifier blow due to overcurrent or short circuits, indicating a more significant underlying problem.

  • Encoder Faults: The amplifier detects errors in the encoder feedback signal, resulting in inaccurate positioning or motion control.

  • Drive Inhibit Issues: The drive inhibit circuit is activated unexpectedly, preventing the amplifier from enabling the motor.

  • Current Loop Instability: The current loop becomes unstable, causing erratic motor behavior and potential damage.

  • Positioning Errors: The amplifier fails to accurately position the motor, leading to errors in the controlled process.

  • Internal Component Failures: Failure of internal components such as capacitors, resistors, transistors, or integrated circuits.

  • Power Supply Problems: Issues with the internal power supply, leading to voltage fluctuations or complete failure.

  • Software or Firmware Corruption: Corruption of the amplifier's software or firmware, causing malfunction or instability.

  • Motor Stalling: The motor stalls due to insufficient torque or excessive load, potentially damaging the amplifier.

  • Unusual Noise or Vibration: The amplifier emits unusual noise or vibration, indicating a mechanical or electrical problem.


Our Heidenhain Servo Amplifier Repair Process

Roc Industrial LLC follows a comprehensive and meticulous repair process to ensure that your Heidenhain servo amplifier is restored to optimal performance. Our experienced technicians use state-of-the-art equipment and proven techniques to diagnose and repair a wide range of issues. Here’s a detailed breakdown of our repair process:

  1. Free Evaluation and Quote: We begin with a free evaluation of your Heidenhain servo amplifier to identify the root cause of the problem. Our technicians conduct a thorough inspection and provide you with a detailed quote for the repair.

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

  3. Diagnosis Using Specialized Test Equipment: Upon arrival, your amplifier undergoes a comprehensive diagnosis using specialized test equipment. We simulate real-world operating conditions to identify all potential issues and ensure accurate troubleshooting.

  4. Component-Level Repair and Replacement: Our skilled technicians perform component-level repairs, replacing faulty components with high-quality replacements. We use only genuine or equivalent parts to ensure the reliability and longevity of the repair.

  5. Load Testing and Quality Checks: After the repair, the amplifier undergoes rigorous load testing and quality checks to verify its performance. We simulate various operating conditions to ensure it meets or exceeds original specifications.

  6. Warranty-Backed Return and Support: We stand behind our repairs with a comprehensive warranty. Your repaired Heidenhain servo amplifier is carefully packaged and returned to you, along with ongoing technical support to address any questions or concerns.


Nationwide Repair Services

Roc Industrial LLC provides Heidenhain 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 online as quickly as possible. Whether you're located in New York, Los Angeles, Chicago, Houston, Dallas, or any other city across the United States, we are here to support your repair needs.


Our nationwide service network ensures that you receive prompt and reliable support, regardless of your location. We work with trusted shipping partners to provide secure and efficient transportation of your Heidenhain servo amplifiers to and from our repair facility. With Roc Industrial LLC, you can count on consistent quality and exceptional service, no matter where you are.



Why Choose Roc Industrial LLC?

When it comes to Heidenhain servo amplifier repair, Roc Industrial LLC stands out as a trusted and reliable provider. We offer a unique combination of expertise, experience, and customer service that sets us apart from the competition.

  • 30+ Years of Experience: With over three decades of experience in industrial electronic repair, we have the knowledge and expertise to handle even the most complex Heidenhain servo amplifier repairs.

  • Warranty-Backed Repairs: We stand behind our repairs with 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 expedite repairs and minimize downtime.

  • 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 consistent quality and adherence to industry best practices.

  • 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 Heidenhain servo amplifier slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable repair.

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