The seller is afraid that you will know the method...

YIZUO is willing to let you know!

Have you ever bought a vacuum packaging machine, but soon found problems such as incomplete packaging, air leakage, or the pumping time took an extremely long time?

In fact, you can get a glimpse of these problems during the test run!

1、Thinner items are more difficult to vacuum

Do they dare to vacuum the coin?

Yes, the easiest way to test a vacuum packaging machine is to test the pump
The pump is the heart of a vacuum packaging machine.
If you give the store a dollar to package it, and shop around, compare all the packaged coins together, you will naturally be able to tell whether the machine is good or bad!

2、View seal

After vacuuming the item, immediately pull on the seal to see if it can be pulled open
And check whether there are cracks or gaps in the seal
These are all related to the shelf life of the product!

Why should vacuum packaging machines use flat acrylic upper covers?

The acrylic upper cover of the vacuum packaging machine needs to withstand the pressure difference between inside and outside.
Non-planar design is prone to rupture at concentrated pressure points due to uneven stress distribution.

As shown in the picture above, it leads to safety hazards.
The flat design ensures even distribution of stress, makes the structure more stable, reduces the risk of breakage, and facilitates cleaning and maintenance.

If a non-planar design must be used, it is recommended that the thickness of the acrylic be increased by at least 30%, and high-quality materials should be selected and safety tested through pressure testing.

Choosing a flat top cover or enhanced non-flat design is the key to ensuring operational safety and equipment durability.

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