The double-chamber packaging machine is a highly efficient vacuum packaging device primarily used in industries such as food, pharmaceuticals, and chemicals. Its design principle involves using a vacuum pump to remove air from the packaging bag, creating an oxygen-free environment to extend the shelf life of products. The machine consists of two independent working chambers that alternate between packaging and sealing operations, significantly enhancing efficiency. The working process includes placing items, sealing the bag, vacuuming, sealing, and cooling. It is mainly used for perishable foods like meat, seafood, fruits, vegetables, and nuts, as well as pharmaceuticals and chemicals that require protection against oxidation and moisture.