180 to 220 degrees.
The suitable temperature range for shrink packaging machines is about 180 to 220 degrees, but this range can be adjusted according to different film materials and packaging needs. Specifically:
For a fully automatic shrinking machine, the temperature range of the sealing knife is usually between 180 and 220 degrees, and the specific temperature has to be adjusted according to the temperature of the film.
The temperature of the conventional shrink film is usually 190-210 degrees, whereas the temperature of the imported shrink film is usually 200-220 degrees.
PVC shrinkage temperature is about 130-160 degrees Celsius, and polyethylene shrink film shrinkage temperature is about 140-170 degrees Celsius.
The optimum reduction temperature of the shrink film is 90-120-c. This temperature range helps the film to sit down quickly and close to the surface of packaging products, creating a smooth and beautiful packaging effect.
In actual operation, temperature adjustment must also take into account other factors, such as the speed of transport of the product, the size of the air volume and the thermal resistance of the product. For example, if the product is not resistant to high temperatures, a lower temperature may be used, if a thicker shrink film is used, the temperature should be raised; In addition, the temperature control method for the shrink packaging machine includes opening the control panel and adjusting the heater or temperature control button to achieve a suitable temperature range.
