The sealed containers, trays and containers is a practice frequently applied in all types of businesses such as shops, restaurants, bars or shopping malls.
Heat sealing, or heat sealing allows melt tight container is closed and left fully closed. This seal allows the interior does not come into contact with air or water. These machines do not have vacuum bell, that is, these are not sealing vacuum packing extracting air before closing.
These welding machines are used for closing food trays or sealing bags before entering certain establishments like malls.
The operation of welding bag sealing machines is simple. Usually no more than choose the temperature of heat applied by a spinner control, temperature depending choose the thickness of the bag, and manually move the lever to close. Generally sealing takes between 1 and 5 seconds.