Rapid freezing does not produce large ice crystals, as far as possible to maintain the quality of food as fresh as the food surface quickly hardened crust after thawing, lock the internal water, reduce the dry consumption of frozen products to the minimum freezing time is short, not only to maintain the freshness of food, and provide a good freezing efficiency: freezing efficiency is higher than that of ordinary tunnel quick-freezing machine. Thus, the processing cost is significantly reduced and the freezing time is shortened, which can reduce the overall device volume and make the equipment space requirements smaller: