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Siemens CNC Servo Motor 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.

Siemens CNC Servo Motor Repair Services

Is your Siemens CNC servo motor malfunctioning, causing downtime and impacting your production? Roc Industrial LLC specializes in providing fast, reliable, and expert Siemens CNC servo motor repair services. We understand the critical role these motors play in your CNC machinery, and we're 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 Siemens CNC servo motor repairs. We offer free evaluations, warranty-backed repairs, and nationwide service to minimize disruption and maximize the lifespan of your valuable equipment.



About Siemens CNC Servo Motors

Siemens is a global leader in industrial automation and digitalization, renowned for its high-quality and innovative CNC (Computer Numerical Control) solutions. Siemens CNC servo motors are integral components in a wide range of CNC machines, including milling machines, lathes, routers, and robotic systems. These motors provide precise and reliable motion control, enabling manufacturers to achieve high levels of accuracy and efficiency in their production processes. Siemens servo motors are known for their robust design, advanced technology, and long-term performance, making them a preferred choice for demanding industrial applications.


Siemens CNC servo motors are used extensively in industries such as aerospace, automotive, medical device manufacturing, and general machining. Their ability to deliver precise and repeatable movements is crucial for producing complex parts with tight tolerances. The motors are often paired with Siemens CNC controllers and drives to create a fully integrated motion control system. Siemens offers a diverse portfolio of servo motors, each designed to meet specific application requirements, from high-speed machining to heavy-duty cutting operations. Roc Industrial LLC understands the intricacies of these motors and provides comprehensive repair services to ensure their continued optimal performance.



Supported Models & Series

We repair a wide range of Siemens CNC servo motor models and series, including but not limited to:

  • 1FT5 Series: Including models like 1FT5076, 1FT5105, 1FT5107, and 1FT5108.

  • 1FT6 Series: Including models like 1FT6061, 1FT6064, 1FT6082, 1FT6105, 1FT6108, and 1FT6131.

  • 1FK7 Series: Including models like 1FK7032, 1FK7042, 1FK7060, 1FK7083, and 1FK7101.

  • 1PH8 Series: Including models like 1PH8101, 1PH8131, 1PH8166, and 1PH8186.

  • SIMOTICS S-1FL6 Series: Including various frame sizes and torque ratings.

  • SIMOTICS S-1FG1 Series: Including models designed for high dynamic performance.

  • Legacy Models: We also support older Siemens servo motor models that are no longer in production. Contact us with your specific model number.

  • Custom Siemens Servo Motors: Roc Industrial LLC has the expertise to repair custom-designed Siemens servo motors used in specialized applications.

  • Spindle Motors: Repair services for Siemens spindle motors used in CNC machining centers.


Common Siemens CNC Servo Motor Problems We Repair

Siemens CNC servo motors, while robust, can experience failures due to wear and tear, environmental factors, or electrical issues. Recognizing these problems early can prevent further damage and minimize downtime. Here are some common issues we address:

  • Encoder Faults: Inaccurate positioning, error messages related to encoder signals, or complete encoder failure.

  • Overheating: Excessive heat generation due to overload, insufficient cooling, or internal motor issues.

  • Vibration and Noise: Unusual vibrations or noises during operation, indicating bearing damage, imbalance, or other mechanical problems.

  • No Output/Loss of Torque: Motor fails to produce torque or rotate, often caused by winding failures, drive issues, or power supply problems.

  • Communication Errors: Problems with communication between the motor and the CNC controller, leading to error messages and operational disruptions.

  • Winding Failures: Shorted or open windings due to insulation breakdown, overheating, or electrical surges.

  • Bearing Failure: Worn or damaged bearings causing excessive noise, vibration, and reduced motor performance.

  • Brake Issues: Malfunctioning motor brakes, leading to positioning errors or safety concerns.

  • Power Supply Problems: Issues with the power supply to the motor, resulting in insufficient voltage or current.

  • Drive Related Issues: Problems originating from the servo drive controlling the motor, such as IGBT failures or control circuit malfunctions.

  • Contamination: Ingress of coolant, oil, or other contaminants into the motor, causing corrosion and electrical problems.

  • Resolver Problems: Issues with the resolver feedback device, leading to inaccurate positioning and control.


Our Siemens CNC Servo Motor Repair Process

Roc Industrial LLC follows a rigorous and comprehensive repair process to ensure the highest quality Siemens CNC servo motor repairs. Our process is designed to identify the root cause of the problem, implement effective repairs, and thoroughly test the motor to guarantee its performance and reliability.

  1. Free Evaluation and Quote: We offer a free, no-obligation evaluation of your Siemens CNC servo motor. Simply send us your motor, and our experienced technicians will assess the damage and provide you with a detailed repair quote.

  2. Shipping Instructions: We provide clear and concise shipping instructions to ensure your motor arrives safely at our repair facility. We can also arrange for expedited shipping if needed.

  3. Diagnosis Using Specialized Test Equipment: Our technicians use state-of-the-art diagnostic equipment to pinpoint the exact cause of the motor failure. This includes insulation testing, winding analysis, encoder testing, and bearing analysis.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements. We stock a vast inventory of Siemens servo motor parts to minimize turnaround time. This includes replacing bearings, encoders, resolvers, windings, and other critical components.

  5. Winding Rewinding (If Necessary): If the motor windings are damaged beyond repair, we offer professional winding rewinding services to restore the motor's performance.

  6. Balancing: After repairs, the motor is dynamically balanced to minimize vibration and ensure smooth operation.

  7. Load Testing and Quality Checks: We subject every repaired Siemens CNC servo motor to rigorous load testing to verify its performance under real-world conditions. This includes testing for torque, speed, and efficiency. We also perform thorough quality checks to ensure the motor meets or exceeds original specifications.

  8. Warranty-Backed Return and Support: All of our Siemens CNC servo motor repairs are backed by a comprehensive warranty. We stand behind our work and are committed to providing exceptional customer support.


Nationwide Repair Services

Roc Industrial LLC provides Siemens CNC servo motor repair services to customers nationwide. Whether you're located in a major metropolitan area or a remote industrial site, we can help you get your equipment back up and running quickly. We serve customers in major cities such as New York, Los Angeles, Chicago, Houston, and Dallas, as well as countless other locations across the country.


We understand the importance of minimizing downtime, which is why we offer fast shipping options and quick turnaround times. We work closely with our shipping partners to ensure your motor is transported safely and efficiently. Contact us today to learn more about our nationwide Siemens CNC servo motor repair services.



Why Choose Roc Industrial LLC?

When it comes to Siemens CNC servo motor repair, Roc Industrial LLC offers a distinct advantage. We combine decades of experience, cutting-edge technology, and a commitment to customer satisfaction to deliver unparalleled repair services.

  • 30+ Years of Experience: Our team of experienced technicians has been repairing Siemens CNC servo motors for over 30 years. We have the knowledge and expertise to handle even the most complex repair challenges.

  • Warranty-Backed Repairs: We stand behind our work with a comprehensive warranty on all Siemens CNC servo motor repairs.

  • Thousands of Parts in Stock: We maintain a vast inventory of Siemens servo motor parts, allowing us to minimize turnaround time and get your motor back to you quickly.

  • Fast Turnaround, Often Same-Day: We understand the importance of minimizing downtime. In many cases, we can provide same-day or next-day repair services.

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

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

  • Free Evaluations: We offer free, no-obligation evaluations of your Siemens CNC servo motors.

  • Component Level Repair: Our expertise allows us to repair down to the component level, saving you money by avoiding unnecessary replacements.

Don't let a faulty Siemens CNC servo motor slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable repair. We are your trusted partner for Siemens CNC servo motor repair services.

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