Modified atmosphere packaging tray sealer has the characteristics of high automation, reliable quality, long service life, simple maintenance process, large production and wide range of applicability. According to the types of fresh gas needed by different foods, three kinds of fresh gas, two kinds of fresh gas and one kind of fresh gas can be selected to meet different needs of users.
High precision gas mixing system can be used to rapidly convert different types and mixing ratios of fresh gas according to different food preservation requirements, so as to achieve the fresh-keeping effect required by customers.