Vacuum Packing Machine

vacuum packing machine for snack food , meat ,grains .

machine introduce :The double-chamber food vacuum packaging machine uses a vacuum cover to work alternately on two vacuum chambers to achieve the purpose of improving work efficiency. When one vacuum chamber is vacuuming, the other vacuum chamber can place packaging; vacuum cover The labor-saving device with swing design greatly reduces the labor intensity of the operator.

machine working principle & machine feature :
1. Vacuum: 2. Heat sealing: 3. Return air: 4. Circulation:
The main function of the vacuum packaging machine is to remove oxygen to help prevent food spoilage. The principle is relatively simple. The mildew and spoilage of food is mainly caused by the activities of microorganisms, and the survival of most microorganisms (such as molds and yeasts) is required Oxygen, and vacuum packaging uses this principle to extract oxygen in the packaging bag and food cells, so that microorganisms lose their living environment. Experiments have shown that when the oxygen concentration in the packaging bag is ≤1%, the growth and reproduction speed of microorganisms will drop sharply, and when the oxygen concentration is ≤0.5%, most microorganisms will be inhibited and stop reproducing. Another important function is to prevent food oxidation. Because fats and oils contain a large amount of unsaturated fatty acids, they are oxidized under the action of oxygen, which makes the food taste and deteriorate. In addition, oxidation also causes the loss of vitamin A and C, and the instability of food pigments. The substance is affected by oxygen to darken the color. Therefore, deoxygenation can effectively prevent food from spoiling. In addition to the oxygen-removing and quality-preserving functions of vacuum packaging, vacuum inflatable packaging also has the functions of anti-compression, gas barrier, and preservation, which can more effectively maintain the original color, aroma, taste, shape and nutrition of the food for a long time. value. In addition, many foods are not suitable for vacuum packaging and must be vacuum-filled packaging. Such as crunchy and fragile foods, foods that are easy to agglomerate, foods that are easy to deform and run out of oil, foods with sharp edges or corners or high hardness that will pierce the packaging bag, etc.

machine technical parameter :