Vacuum machine sealing time, cooling time setting and adjustment

For the vacuum machine, it is necessary to achieve the ideal sealing packaging effect. Then you need to set a sealing and cooling time according to the material and thickness of the packaging bag. The setting is reasonable and the hot-melt sealing effect is ideal. Improper setting will cause the problem of inability to seal or scorch. Vacuum machine sealing time setting The vacuum machine sealing time setting needs to be set according to the material and thickness of the sealed packaging bag to a corresponding reasonable parameter setting. If the sealing time is set too long, it will cause the packaging bag to be scorched, while if the sealing time is set too short, it will cause problems such as weak sealing and air leakage. How long the specific sealing time is set depends on the actual sealing situation. Generally speaking, for double-sided 16-filament vacuum bags, the sealing time is set at about 1-1.3S. The aluminum foil bag can be slightly longer. Vacuum machine sealing temperature setting Part of the vacuum machine can not only set the sealing time, but also the sealing temperature (generally there are three levels of high, medium and low). The selection of the sealing temperature depends on the hot melting point of the packaging bag. Generally speaking, low-grade plastic bags can be selected, medium-grade vacuum bags, double-sided bags or thicker aluminum foil bags can be selected. Vacuum machine cooling time setting The vacuum machine cooling time refers to: the cooling of the sealing heating strip-stop heating, but the heat sealing plate keeps the pressure on the plastic bag mouth. The purpose of controlling the cooling time is to achieve a beautiful sealing effect. If the cooling time is set too short, it will take a short time for the heat-sealing plate (beading) of the vacuum machine to squeeze the bag mouth, and the corresponding sealing appearance will be reduced. If the setting is too long, it will cause the sealing part to contact the heat-sealing plate for a long time and cause the problem of secondary heat melting, and it will also lengthen the entire sealing working time. Therefore, from the above point of view, for the vacuum machine, we need to make a reasonable and scientific parameter setting whether it is the sealing time, temperature or cooling time. In order to achieve an ideal sealing effect. For this, you can consult the vacuum machine or packaging bag supplier to obtain a relatively accurate value.