1. The rolling vacuum packaging machine removes part of the air (oxygen) in the packaging container, which can effectively prevent food from spoilage. 2. The rolling vacuum packaging machine adopts packaging materials with excellent barrier (air tightness) and strict sealing technology and requirements, which can effectively prevent the exchange of packaging contents, not only avoid food weightlessness and odor loss, but also prevent secondary pollution. 3. The gas in the vacuum packaging container has been removed, which accelerates the heat conduction, improves the thermal sterilization efficiency, and avoids the packaging container from cracking due to gas expansion during thermal sterilization. ? The rolling vacuum packaging machine can be vacuumized (inflated), sealing and printing can be completed at one time, the vacuum degree can be adjusted by setting the potentiometer switch, the sealing temperature can be adjusted in five steps, the heating voltage of the transformer can reach different sealing temperatures, and the heat sealing time is controlled by the digital display time relay. This machine adopts product label printing device, which is convenient to change words and print clearly, and conforms to the provisions of the national food labeling law. Rolling vacuum packaging machine is suitable for food industry, such as meat, sauce products, condiments, preserved fruit, grain, bean products, chemicals, medicinal materials and other commodities, powder, liquid and so on. After vacuum treatment, it is packed with inert gas, which can prevent products from oxidative mildew, corruption and moisture-proof, and prolong the shelf life of products. The transmission parts are all mechanical structures such as connecting rod device and precision indexing structure, which ensure the stability and durability of the machine due to low-speed operation. Suitable for vacuum packaging of products in large-scale production enterprises. Such as: meat, pickled products, aquatic products, seafood, vegetables, agricultural and sideline products, preserved fruits, grain, bean products, medicinal materials and electrical appliances.