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Kollmorgen spindle motor rebuild troubleshooting guide

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.

Kollmorgen Spindle Motor Repair Services

Is your Kollmorgen spindle motor experiencing issues? Roc Industrial LLC specializes in providing rapid and reliable Kollmorgen spindle motor repair services to minimize downtime and maximize the lifespan of your critical equipment. We understand the importance of keeping your CNC machines and automated systems running smoothly, and our team of experienced technicians is dedicated to providing the highest quality repair solutions. With decades of experience, a vast inventory of parts, and a commitment to excellence, Roc Industrial LLC is your trusted partner for all your Kollmorgen spindle motor repair needs.



About Kollmorgen Spindle Motors

Kollmorgen is a globally recognized leader in motion control systems and components, renowned for its innovative designs and high-performance products. Their spindle motors are widely used in a variety of demanding applications, including CNC machining, robotics, and automated manufacturing. Known for their precision, reliability, and efficiency, Kollmorgen spindle motors are integral to the operation of many industrial processes. These motors are designed to deliver exceptional torque and speed control, ensuring optimal performance in even the most challenging environments.


Kollmorgen spindle motors are particularly valued in industries that require high accuracy and repeatability. From aerospace and automotive to medical device manufacturing, these motors play a crucial role in ensuring the quality and precision of finished products. Their robust construction and advanced control features make them a preferred choice for applications where downtime is costly and reliability is paramount. Roc Industrial LLC understands the critical role these motors play in your operations, and we are committed to providing comprehensive repair services to keep your equipment running at peak performance.



Supported Models & Series

We repair a wide range of Kollmorgen spindle motor models and series, including but not limited to:

  • Goldline Series Spindle Motors

  • AKM Series Spindle Motors

  • Direct Drive Spindle Motors

  • Cartridge Spindle Motors

  • Frameless Spindle Motors

  • Kollmorgen Servostar Series Motors

  • Custom Kollmorgen Spindle Motor Solutions

  • DDR Series Direct Drive Rotary Motors

  • Various legacy Kollmorgen spindle motor models


Common Kollmorgen Spindle Motor Problems We Repair

Kollmorgen spindle motors, while highly reliable, can experience various issues over time due to wear and tear, environmental factors, or electrical problems. Roc Industrial LLC is equipped to diagnose and repair a wide range of common failures.

  • No Output/Failure to Start: Motor does not power on or respond to commands.

  • Overheating: Excessive heat generation during operation, potentially leading to premature failure.

  • Vibration and Noise: Unusual vibrations or noises indicating bearing damage or imbalance.

  • Encoder Faults: Errors in the encoder feedback system, affecting positioning accuracy.

  • Communication Errors: Loss of communication between the motor and the control system.

  • Blown Fuses/Tripped Breakers: Electrical overloads or short circuits causing protective devices to activate.

  • Bearing Failure: Worn or damaged bearings resulting in reduced performance and increased noise.

  • Winding Insulation Breakdown: Deterioration of the insulation around the motor windings, leading to short circuits.

  • Contamination: Ingress of contaminants such as coolant, dust, or debris affecting motor performance.

  • Low Torque/Speed Issues: Reduced torque or speed output, impacting machining performance.


Our Kollmorgen Spindle Motor Repair Process

Roc Industrial LLC follows a meticulous and comprehensive repair process to ensure the highest quality and reliability of our Kollmorgen spindle motor repairs:

  1. Free Evaluation and Quote: We begin with a thorough evaluation of your Kollmorgen spindle motor to identify the root cause of the problem. This evaluation is provided free of charge, and we will provide you with a detailed quote for the repair before proceeding.

  2. Shipping Instructions: Once you approve the quote, we will provide you with detailed shipping instructions to ensure your motor is safely transported to our repair facility. We can also arrange for pickup services if needed.

  3. Diagnosis Using Specialized Test Equipment: Upon arrival, our technicians use advanced diagnostic equipment to further assess the condition of your Kollmorgen spindle motor. This includes testing the motor windings, encoder, bearings, and other critical components.

  4. Component-Level Repair and Replacement: We perform component-level repairs whenever possible, replacing only the faulty components to minimize costs. We use only high-quality replacement parts that meet or exceed the original manufacturer's specifications. This includes replacing bearings, encoders, seals, and other wear items.

  5. Winding Refurbishment (If Necessary): If the motor windings are damaged, we have the capability to rewind the motor to restore it to its original performance specifications. Our winding process ensures proper insulation and winding techniques for optimal performance and longevity.

  6. Balancing: After reassembly, the spindle motor is dynamically balanced to minimize vibration and ensure smooth operation at high speeds.

  7. Load Testing and Quality Checks: Before returning your repaired Kollmorgen spindle motor, we perform rigorous load testing to verify its performance under real-world operating conditions. This includes testing the motor at various speeds and loads to ensure it meets or exceeds the original specifications. We also conduct thorough quality checks to ensure that all repairs have been completed to our high standards.

  8. Warranty-Backed Return and Support: All of our Kollmorgen spindle motor repairs are backed by a comprehensive warranty, giving you peace of mind knowing that your investment is protected. We also provide ongoing technical support to answer any questions you may have after the repair.


Nationwide Repair Services

Roc Industrial LLC provides Kollmorgen spindle motor 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 get your Kollmorgen spindle motor back in operation as quickly as possible. Our experienced technicians are available to provide on-site support and troubleshooting if needed. We are dedicated to providing exceptional customer service and support to ensure your complete satisfaction.



Why Choose Roc Industrial LLC?

When you choose Roc Industrial LLC for your Kollmorgen spindle motor repair needs, you can be confident that you are getting the highest quality service and expertise. Here are just a few of the reasons why you should choose us:

  • 30+ Years of Experience: We have been providing industrial repair services for over 30 years, and we have the knowledge and experience to handle even the most complex Kollmorgen spindle motor repairs.

  • Warranty-Backed Repairs: All of our repairs are backed by a comprehensive warranty, giving you peace of mind knowing that your investment is protected.

  • Thousands of Parts in Stock: We maintain a vast inventory of parts, allowing us to quickly and efficiently repair your Kollmorgen spindle motor.

  • Fast Turnaround, Often Same-Day: We understand that downtime can be costly, and we are committed to providing fast turnaround times, often same-day service for critical repairs.

  • ISO-Certified Repair Processes: Our repair processes are ISO-certified, ensuring that we adhere to the highest standards of quality and safety.

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

Don't let a faulty Kollmorgen spindle motor slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable repair. We are your trusted partner for all your Kollmorgen spindle motor repair needs.

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