The power of PE shrinking machine is generally large, around 20-40KW, and the set temperature is also relatively high, usually around 180 ° -220 °. The setting varies according to the thickness of the material, the speed of conveying the product, the size of the air flow, and the temperature. If the product is not resistant to high temperature, low temperature can be used and thin shrink film can be used. If the shrink film thickness is increased, the temperature needs to be raised, and the power of the shrink machine also needs to be chosen to be larger. The speed of conveying products increases, and the temperature increases accordingly. Conversely, if the speed decreases, the air volume increases, and the temperature decreases accordingly. Conversely, if the speed decreases, the temperature increases. The power of POF and PVC shrinking machines is generally between 5-20KW, and the temperature is usually set at around 140- ° 160 ° C for adjustment, which is basically the same as that of PE shrinking machines.