FX-500 double chamber vacuum packaging machine because a larger studio space, equipped with two 020 pumps, two vacuum chambers work in rotation, left, right and cover the studio made of stainless steel, reasonable structure, tightness good, beautiful and durable, and meet the requirements of food hygiene and corrosion, cover with a group of hot sealing device and a balanced structure, can stay in any position, and a buffer to protect. With high barrier plastic film or aluminum foil composite plastic film for packaging materials, various instruments medicines, food. Fruits. Pickles, preserved fruit, aquatic products, native products, chemicals, electronic components and military supplies. Can effectively prevent lipid oxidation and aerobic bacteria caused by corruption and deterioration of goods, to achieve quality, freshness, security flavor, color retention function of the storage period, while some of the soft goods, after the vacuum packaging shrink packaging volume, easy to transport and storage. Working procedures and principles of a vacuum a vacuum chamber lid, vacuum pump work, start pumping chamber vacuum packaging bag while the vacuum, vacuum gauge pointer to rise, reaching rated vacuum (controlled by the time relay ISJ) vacuum pump to stop working, stop the vacuum . Second, the outside air by heat-sealing the upper part of a solenoid valve inlet into the sealing air bag, sealing the vacuum chamber with a pressure difference between the air bag, sealing balloon inflated to the pressing frame down, hold down pocket; while sealing the transformer and started sealing; In the meantime, time relay 2SJ work, a few seconds after the action, sealing the end. Third, the return air two two-way solenoid valve 2DT through the atmosphere into the vacuum chamber, the vacuum table pointer back to zero, hot planes rely reset spring return, the vacuum chamber natural openings. Four, the loop on the vacuum chamber to another chamber, that the next work process, work alternately left and right chambers, ad infinitum. Preservation Principles vacuum packaging oxygen primary role is to help prevent food spoilage, the principle is relatively simple, due to deterioration of food mold rot caused primarily by microbial activity, and survival of most microorganisms need oxygen, while the vacuum packaging is the use of this principle, the packaging bag and the food cells deprived of oxygen, the microbial lost "living environment." Vacuum packaging can not inhibit the enzyme reaction of anaerobic bacteria multiply and cause food spoilage and discoloration, it needs to combine with other auxiliary methods, such as refrigeration, freezing, dehydration, heat sterilization, irradiation sterilization, microwave sterilization, salted, etc. . Vacuum oxygen in addition to inhibiting microbial growth and reproduction, another important function is to prevent food oxidation, because fats and oils in foods rich in unsaturated fatty acids, the role of oxidation by oxygen, the food taste, bad. In addition, the oxidation also makes vitamin A and vitamin C loss of food coloring in the role of oxygen by unstable substances, to make the color darker. Therefore, the oxygen can effectively prevent food spoilage, keep its color, smell, taste and nutritional value. Small vacuum packaging machine as long as a certain degree of vacuum, the effect is the same. Vacuum packaging in addition to oxygen, there are inflatable link. The main role of vacuum inflatable packaging vacuum packaging are available in addition to oxygen shelf functionality, there are major compression, gas barrier, preservation and so on, can be more effective in the long term to maintain the original food color, smell, taste, shape and nutritional value. In addition, there are many food vacuum packaging should not be used, but must use the vacuum inflatable packaging. Such as crispy or crunchy foods, easy caking food, easy to deform take the oil food, have sharp edges or high hardness will pierce the bag food. Food by food vacuum packaging machine vacuum inflatable packaging, packaging bag inflatable bag outside pressure greater than atmospheric pressure, can effectively prevent the deformation of compression crushing of food does not affect the appearance and printing and decorating bags. Inflatable packaging in a vacuum and then vacuum-filled with nitrogen, carbon dioxide, oxygen gas is a single gas or a mixed gas of 2-3. Wherein the nitrogen is an inert gas, from the filling, the bag to maintain positive pressure to prevent air from entering the bag outside the bag, the food acts as a protective effect. Various types of carbon dioxide gas can dissolve in fats or water to form carbonic acid weaker, inhibit mold, spoilage bacteria and other microbial activity. Oxygen can inhibit the growth of anaerobic bacteria breeding, keeping fruits, vegetables and fresh colors, high concentrations of oxygen can maintain its bright red fresh meat. The machine features an exclude part of the packaging container of air (oxygen), can effectively prevent food spoilage. 2, the use of barrier (tightness) excellent packaging materials and sealing technology and strict requirements, can effectively prevent the exchange of substances in the package contents can be avoided by food weight loss, loss of taste, but also to prevent secondary pollution. 3, vacuum-packed container internal gas has been ruled out, accelerated heat conduction, which can improve the efficiency of heat sterilization, but also to avoid the heat sterilization, due to expansion of the gas leaving the container rupture. In the food industry, vacuum packaging applications is very common, a variety of cooked products such as chicken, ham, sausage, grilled fish, beef jerky, etc.; various pickles and pickled products such as soy products, dried fruit and other kinds of fresh food needs increasing use of vacuum packaging. After vacuum-packed food preservation and long, greatly extend the shelf life of food. Technical parameters Machine Model: DZQ-500/2S Power: 1Φ220V/3Φ380V 50/60HZ Power: 2.5KW Heat Seal Size / Article number: L500 × W10mm / 2 条 NW: 170KG Studio Size: L500 × W380 × H90mm vacuum capability : 2X20 m / h Dimensions: 1310 × 800 × 1150mm Working cycle: 15-40 seconds / second (small or thin in the packaging of products, you can work indoors at the bottom of the mat flat plastic sheeting, wood, etc., to reduce spatial volume, reduce vacuum time, improve packaging speed).