Un electromagnetic vibratory feeder works as a key “feeding expert” in your production line. However, a burnt-out coil can stop the machine completely. This problem also disrupts your entire production process. We have identified four common causes and practical solutions based on years of experience. Our goal is to help you solve this coil burnout issue for good.
1. Incorrect Coil Assembly Gap
The assembly gap between the core and the armature directly controls the feeder’s operating current. If the gap is too small, the current will quickly increase. Then, it exceeds the coil’s capacity and burns the coil out in a short time.
Solution :
First, always adjust the core-to-armature gap strictly according to the technical specifications when replacing a coil. Next, use a feeler gauge for precise measurement. Ensure the gap value stays within the allowed range. After adjustment, always conduct a no-load test run. Finally, check if the operating current is normal.
2. Substandard Coil Material
Some coils use inferior materials. For example, they may have insufficient turns, or use copper-clad aluminum or pure aluminum instead of pure copper. These poor-quality coils have incorrect resistance values. Consequently, they overheat and burn out easily.
Solution :
Always check the product certificate and material proof carefully during purchase. If necessary, use a bridge meter to measure the coil’s resistance. This step ensures it meets the standard.
3. Non-Standard Installation
Incorrect installation sequence or a damaged insulation layer during installation can cause a short circuit or grounding. As a result, the coil can burn out instantly when powered on.
Solution :
Always follow the installation sequence specified in the manual. During installation, handle the coil gently to avoid any physical damage. After installation, use a megohmmeter to check the coil’s insulation resistance. This confirms the insulation is in good condition.
4. Harsh Operating Environment
Electromagnetic vibratory feeders often run in high-temperature and dusty environments. In these conditions, the coil cannot dissipate heat effectively. Therefore, heat builds up continuously. This eventually leads to insulation aging and coil burnout.
Solution :
Improve ventilation around the equipment. If needed, add a forced cooling device. Regularly clean dust from the coil surface to maintain good heat dissipation. Also, monitor the equipment’s operating current and investigate any abnormality immediately.
In conclusion, a burnt-out coil in your electromagnetic vibratory feeder is a solvable problem. You must find the exact cause and apply the correct solution. Remember to select high-quality parts, follow proper installation procedures, and perform regular maintenance. These three actions are all essential. Only then can you ensure stable feeder operation and keep your production line running smoothly.
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