The NC servo feeder is a critical component in the stamping industry, renowned for its precision and efficiency. By utilizing a servo motor to directly drive the feeding rollers, it ensures accurate material feeding. This advanced equipment is controlled via a 7-inch touch screen, making it user-friendly and highly accurate. As more stamping production lines are being automated, the NC servo feeder has become a popular choice for many businesses.

However, first-time users often encounter issues with the NC servo feeder due to incorrect operation settings or inadequate maintenance. Most problems stem from improper usage and management. To assist users in maintaining their equipment and resolving common issues quickly, we have compiled a series of repair case studies. This guide aims to enhance your understanding of the NC servo feeder and improve your troubleshooting skills.

Common Issues with NC Servo Feeders

Why Does the NC Servo Feeder Stop Feeding?

One common issue users face is the NC servo feeder suddenly stopping during operation. This problem usually arises during the transition from manual to automatic mode. Let’s delve into a specific case to understand the causes and solutions.

Fault Description: During a test run, the NC servo feeder functions correctly in manual mode. However, when switched to automatic mode and the start button is pressed, it feeds once and then stops.

Causes and Solutions for NC Servo Feeder Stoppage

1. Set Number of Feeding Cycles Reached

Cause: The feeder stops because it has reached the preset number of feeding cycles.

Solution: Check the feed count on the touch screen. If the count has reached the preset number, reset it to zero to resume feeding.

2. Multiple Feeding Cycles Setting

Cause: The feeder is inadvertently set to perform multiple feeding cycles, which is often unnecessary for most users.

Solution: Review the feeding cycle settings on the touch screen. Delete any unnecessary feed steps and cycle counts to ensure the feeder operates correctly.

3. Loose or Faulty External Cam Signal Line

Cause: A loose connection or a fault in the external cam signal line can cause the feeder to stop.

Solution: Inspect the cam signal line for secure connections. Reconnect or replace the line if it is loose or damaged.

Preventive Maintenance and Best Practices

Regular Maintenance Checks

To avoid operational issues with your NC servo feeder, regular maintenance is crucial. Here are some tips to ensure your equipment runs smoothly:

  • Daily Inspections: Perform daily checks of the feeder’s components, including the servo motor and feeding rollers, to ensure they are in good condition.
  • Touch Screen Calibration: Regularly calibrate the touch screen to maintain accurate operation settings.
  • Signal Line Integrity: Inspect all signal lines for wear and tear. Replace any damaged lines immediately.

Operator Training

Proper training for operators is essential to prevent improper usage and ensure efficient operation. Training should cover:

  • Understanding Settings: Operators should be well-versed in setting and adjusting feeding cycles and other parameters.
  • Troubleshooting: Equip operators with the knowledge to identify and resolve common issues quickly.
  • Maintenance Procedures: Ensure operators are familiar with routine maintenance procedures to keep the feeder in optimal condition.


The NC servo feeder is a powerful tool in the stamping industry, offering precision and efficiency. However, like any advanced equipment, it requires proper operation and maintenance to function correctly. By understanding common issues and their solutions, you can prevent downtime and ensure your feeder operates smoothly.

If you encounter any issues that are not covered in this guide or need further assistance, do not hesitate to contact our support team. Proper maintenance and timely troubleshooting will keep your NC servo feeder running at its best, enhancing your production line’s efficiency and reliability.

NC Servo Feeder
NC Servo Feeder