What To Do If A Vacuum Packaging Machine Fails To Seal?
Apr 23, 2026
Vacuum packaging machines are made entirely of 304 stainless steel, a special type of steel for equipment. The vacuum chamber is made of 4mm thick steel plate, ensuring it won't deform or leak even after long-term use. So, what if a vacuum packaging machine can't seal?
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The following are methods to address a vacuum packaging machine's inability to seal:
1. There's oil in the bag, causing poor sealing. This isn't a technical or quality issue. Try using a funnel packaging method before sealing, or perform simple operations.
2. Ensure sufficient heating temperature. Adjust the thermometer; a standard vacuum bag should be heated for approximately 2 seconds.
3. Check if the metal strip under the insulating cloth is damaged.
4. Check if the vacuum pump is working properly.
5. Keep the heating cloth clean at all times to prevent debris from melting into it.
6. Check the pressure of the drive cap.
7. Pay special attention to the aging of the heating wire.
8. A faulty heat-sealing relay can also affect this function; replace the faulty part.
9. Check the contact between the heating wire and the copper screw.
10. Check if the transformer is working.
Food vacuum packaging machines often experience various problems due to the specific characteristics of the product. If a problem occurs, carefully check the following components: vacuum pump, heat-sealing relay, etc.
When a vacuum packaging machine fails to seal, we can use the solutions described above to resolve the problem.
