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How does the automatic vacuum packaging machine seal the packs?

How does the automatic vacuum packaging machine seal the packs?

  • May 29, 2024

As know well, automatic vacuum packaging machine also named vacuum packing sealer. After vacuum extraction is completed, the following procedure is sealing the packs.

Package sealing is accomplished by mean of a short circuit instantaneous current heating though a heater strip.

Heating sealing unit has a nickel-chromium alloy heating strip and heat-insulating cloth. It mounted on a phenolic board made of insulating resin.

The sealing time of the automatic vacuum packaging machine is set according to the thickness of the packaging bag. 2 seconds is generally recommended.

When sealing the packaging pouches of aluminium foils or other composite materials that the thickness is more than 1.2 mm, double-sided heating is required.

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