PERFORMANCE VIDEO	*PATENTED PRODUCT*

PET MULTI VACUUM EXTRUSION-PELLETIZING LINE

PET EXTRUSION PELLETIZING MACHINE

With decades of experience, KOWIn researches and develops the multi-vacuum extrusion-pelletizing machine. Why is it multi-vacuum? Because during the PET pelletizing, the air residual would be a main concern. Therefore, first, during the feeding, KOWIn adopts the vacuum feeding system to avoid PET yellowing and quick IV drop. In addition, KOWIn adopts drying type extrusion feeding to prevent the problem that when PET material enters into melting, the residual air would influence the quality of PET material. Furthermore, when the temperature is controlled in 210℃, PET is not melted yet. After getting softening point, use KOWIn multi-vacuum system to extract the residual air. After the material gets vacuumed, then it goes into compounding section to make PET melted and compounded. During the compounding, KOWIn uses vacuum to ensure the residual air be without CO2 so as to get high quality PET pelletizing. Therefore, KOWIn extrusion-pelletizing machine is an exclusive-designed PET extrusion-pelletizing machine, which is patented by various countries.

• When the shear force is large, it will release the oil from PET, which makes the IV (intrinsic viscosity) of PET lower down.
• Humidity and air could cause problems in PET pelletizing. Therefore, first, it needs DEHUMIDIFYING-DRYING SYSTEM to dehumidify and dry the material into -40℃~-60℃ dew point for the following pelletizing process. In this way, it can prevent from too much IV drop.
• Work with the RECYCLING SORTING & INSPECTION SERIES developed by KOWIn, which is able to clean the post-consumer PET bottles. And KOWIn develops PET BOTTLE HOT WAHING COMPLETELY RECYCLING LINE, NO WASTE WATER DISCHARGING. The full line design is to implement to get satisfied cleanliness of PET bottle flake. It already reaches the conditions of high quality PET pellet production. It cooperates with KOWIn PET multi-vacuum extrusion-pelletizing machine; it is the best choice of complete line for post-consumer PET bottle recycling.