Tripack’s shrink tunnel product line varies by opening (adjustable), overall tunnel length, and number of heating zones. Shrinking of film is a function of time and temperature. So, there is a correlation between tunnel length and conveyor speed based on product size and throughput. The ST-1 is our mid-sized (6.5') steam tunnel and has multiple zones that can be set up independently. To achieve optimal shrink for a great looking product, it is common to use either a single tunnel or multiple tunnels.
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