Vacuum packaging machine is a vacuum inflatable packaging of food into the bag, pumping out the air inside the bag to reach a predetermined degree of vacuum, and then filled with nitrogen or other mixed gases, and then complete the sealing process. Hangzhou Yongchuang has long been committed to the research and development of vacuum packaging machine, absorbing foreign advanced technology, has developed four series of vacuum packaging machine: food vacuum packaging machine, small vacuum packaging machine, desktop vacuum packaging machine, single-chamber vacuum packaging machine, double-chamber vacuum packaging machine, three-dimensional bags of vacuum packaging machine, equipment have reached the level of Europe and the United States. And provide quality, technology, vacuum packaging machine price guarantee 100% satisfaction, recognized by the majority of customers. The company produces a series of vacuum packaging machine is suitable for a variety of food, meat products, seafood, fruits and vegetables, pickles, cooled meat, pharmaceutical products, hardware components, medical equipment, such as vacuum, inflatable, paste the body of the packaging machine. The principle of vacuum packaging is: because of food mold deterioration caused mainly by microbial activities, and most of the microorganisms (such as molds and yeasts) need oxygen to survive, and vacuum packaging is the use of this principle, the bag and the food cells within the oxygen pumped off, so that the micro-objects to lose the "survival of the environment". Experimental evidence: when the oxygen concentration in the bag ≤ 1%, the growth and reproduction of microorganisms on the sharp decline in the rate of oxygen concentration ≤ 0.5%, most of the microorganisms will be inhibited and stop reproducing. (Note: vacuum packaging can not inhibit the reproduction of anaerobic bacteria and enzyme reactions caused by food spoilage and discoloration, so it is also necessary to combine with other auxiliary methods, such as refrigeration, quick-freezing, dehydration, high temperature sterilization, irradiation sterilization, microwave sterilization, salt pickling, etc.).