the jet heat shrink packaging machine is currently the latest type of automatic continuous shrink packaging equipment in China. It adopts a hot air internal circulation structure and uses a smart temperature controller to control the temperature. The metal heating tube has its own heat sink, which makes the temperature control inside the furnace more accurate, stable, adjustable transmission speed, better control contraction effect, energy saving and high efficiency (energy saving more than 15%). Shrink temperature and motor transmission speed are stable and adjustable, and can be adjusted in a wide range. The original jet device can freely adjust the height and wind direction of the shrink grate. Suitable for PVC, POF, PP and other heat shrink films, compared with POF, it shows the superiority of this machine.