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Showing posts from December, 2021

How do you seal food tray

Trays help to serve foods and are often used to package food, but how can we seal them. In order to accomplish this, we rely on   tray sealing machines , which range in size from a manually operated to an automated machine. In simple terms tray sealers apply plastic film lids that are sealed onto trays of various materials, sizes, and depths by using this machine. By packaging foods, we can make them easier to transport and to attract customers.   The way these machines work is very simple and how food is packed by them is, the trays are first placed on the infeed conveyor, where they are indexed and stacked. A transfer beam then picks these up for transfer within the tooling. In the next step, the seal plate picks up the product-filled trays, lifting them against the film. After the trays and film have been compressed against the heated upper tooling, the sealing properties are activated against the trays while the film is simultaneously cut. After the dwell time for seals has exp