Granulator knives for granule PET bottles

Recycling granulators specially designed for recycling reusable materials from PET bottles.

From lemonade to coke, beer and mineral water - more and more drinks are sold in PET bottles. So that the resulting raw materials could be used to make more bottles or reprocessed.

In order to reuse waste PET bottles, they have to be recycled or shredded. Individual PET bottles are continuously fed into the cutting chamber, by means of a conveyor belt. Massive, angled rotor knives work with a very close cutting gap against opposing slanted bed knives and cut the bottles into flakes. The special rotor really does cut diagonally and this keeps energy consumption to a minimum. The lower part of the housing is fitted with a large screen, which holds the PET flakes in the cutting chamber until they are discharged through the screen holes. The mesh size can be selected, which determines the size of the flakes and throughput rate of the granulator. 

After being cut, the material is pneumatically suctioned and transported into a cleaning system, in which the PET flakes are separated from the PE, which is still contained in the bottle caps. The resulting secondary raw materials can be recycled in many different ways. They are often reused to manufacture PET bottles. Alternatively, they can be used to manufacture carpets and textiles.

We supply granulator knives (bed knife and rotor knife )mentioned in this article. Material of bed knife and rotor knife is D2, and they are the choice of most famous granulators brands. If you are PET bottle manufacturer by using wasted PET bottles, please send knife request to waixiao6@shungji.com.