How to maintain bottom sealing bag making machine

If you want your bottom-seal bag-making machine to operate stably, with high precision, and with minimal downtime, the key isn't fancy tricks, but rather regular, targeted maintenance. Focusing on the heat sealing system, drive components, and electrical sensors will yield significant results. This guide, based on Chovyplas's 12 years of field service experience and global after-sales database data, details practical and feasible maintenance steps. By following these steps, you can easily extend your machine's lifespan by 30% and reduce the defect rate caused by improper maintenance to below 0.5%. These techniques are applicable to various production scenarios, from food packaging lines to industrial film processing, regardless of whether you use a semi-automatic or fully automatic model.

Daily Core Maintenance

The heat sealing blades are the core component of a bottom-seal bag-making machine. Neglecting daily maintenance can easily lead to problems such as weak seals or burnt film – this is not an exaggeration; it's the main culprit behind these issues. After each shift, please turn off the power, wait for the blades to cool, and then wipe them with a lint-free cloth soaked in food-grade alcohol. This removes melted film residue that can obstruct heat transfer. Chovyplas conducted a comparative test, which showed that machines cleaned daily had an 87% lower sealing failure rate than those cleaned only once a week. This difference is significant.

Regarding the film path, check the guide rollers for misalignment or debris. Even a small piece of residual film can affect the entire system – causing film deviation and resulting in uneven bottom sealing. Chovyplas's custom guide roller cleaning brushes can easily solve this problem. Simply install them on the guide rollers, and they will automatically remove residue while the machine is running. This is very convenient for high-volume production lines that cannot afford to stop for cleaning every five minutes.

Weekly In-Depth Maintenance

Don't forget to calibrate the film tension control system weekly. Too little tension? Bag sizes will be inconsistent. Too much tension? The film will be stretched, leading to seal damage. Use Chovyplas's digital tension meter and adjust the settings according to the film thickness. For PE film, a tension of 15-20N is recommended; PP film requires slightly lower tension, 10-15N, for optimal results. While this may seem like a small step, it can significantly improve production consistency.

The electrical system is the "nervous system" of the machine – and dust accumulation in the control cabinet is one of the most common causes of sudden machine shutdowns. Once a month, use compressed air to clean out the control cabinet. Then check for loose terminal connections. Chovyplas machines use our proprietary color-coded wiring, so even if you're not a professional, you can quickly identify problems.

Chovyplas Tailored Support

Ready to enhance the performance of your bottom-seal bag making machine? Visit the CHovyplas product page today.With CHovyplas, you'll receive reliable, personalized support perfectly tailored to your operational needs.