A screw pelletizer is a type of forming machine that produces a specific shape of material. Underwater pelletizers are similar to airflow pelletizers and water jet pelletizers. The equipment mainly consists of the following parts: plastic pelletizers, single and twin screw plastic extruders, plastic film blowing machines, bag making machines, printing machines, coating machines, tape machines, tape slitting machines, slitting machines, packing tape machines, etc.

So how to buy a suitable pelletizing machine for yourself?



Plastic products with its light quality, high strength, corrosion resistance, easy processing and other excellent performance, in various areas of industrial and agricultural production and life play an important role. However, with the widespread use of plastic products, waste plastic treatment has become a problem, of which "difficult to degrade naturally" has become a global environmental pollution problem to be solved.




In recent years, with the rapid development of China's plastics industry, the plastic granulator industry has also been able to develop rapidly. The pelletizer is able to make plastic pellets from recycled plastic products through various processes to achieve the effect of plastic reuse. The pelletizer industry involves many areas of the national economy, not only is a large number of industrial and agricultural products indispensable basic production links, but also in solving China's plastic pollution, improve the reuse of plastic products, the establishment of a perfect plastic recycling system has played an important role.



For recycled plastic enterprises, it is vital to choose a pelletizing machine suitable for their use, because a plastic pelletizing machine is not able to make all plastics because of the different plasticizing and extruding pressure. General pelletizers can recycle and granulate everyday plastics, but special plastics like engineering plastics, cross-linked polyethylenes and spun cloth require special pelletizers for recycling and granulation. Therefore, when purchasing a pelletizer, manufacturers must pay attention to the type of plastic they need to recycle, and then purchase a pelletizer that is suitable.


In addition, when purchasing a pelletizer, the following points should be noted:



Clarify the purpose and use of the pelletizer. At present, the market for the purchase of pelletizing machine customers are roughly three categories, respectively, individual or private enterprises to invest in business, plastic manufacturers to buy pelletizing machine to solve the problem of their own factory production products of the trimmings, and then there are dealers, trade merchants. For individual or private business start-up customers in the purchase of granulators, it is important to clarify the type of plastic produced by the enterprise. PS foam material market is relatively small, if there is a clear sales channel for special plastics, users can also buy the corresponding pelletizing machine.



Performance of the pelletizer. Pelletizers can be divided into single-screw pelletizers and twin-screw pelletizers according to the number of screws, single-screw pelletizers work with the plastic in the barrel in a spiral forward. The twin-screw pelletizer works in a straight line in the barrel. According to the working principle, when the twin-screw machine is shut down, the machine can be largely emptied of material, while the single-screw machine can store a small amount of residual material, so most plastics granulation, single and twin-screw can be used without distinction.




However, in the case of recycled plastics, the single-screw machine is more effective because of the larger mould surface and the easier material placement; in the case of modified plastics, coloured masterbatches and mixed-colour pellets, the two types of machine are equally effective; in the case of extended glass fibre and cross-linked submarine cable material, the twin-screw pelletizer can only be used. In addition, the purchase cost of machinery and post-production costs, single-screw granulator will be much lower, twin-screw granulator is at a distinct disadvantage. Therefore, when buying equipment, you need to choose the appropriate equipment according to the different products produced by the company.




The above is a simple collation of the purchase of granulators need to pay attention to some of the content, for reference only. In addition, the technical parameters of the pelletizer, stability, reliability, safety and service life, the degree of automation, whether energy saving and environmental protection, production costs, production efficiency, suppliers and operability are all elements that need to be noted when purchasing a pelletizer.

Nanjing Sumino Precision Machinery Co., Ltd. has long been committed to creating quality pelletizing machines. The picture below shows a modified plastic pelletizing line designed and manufactured by the company. The water-cooled pelletizer has a separate screw and gearbox design for increased speed and longer run times. The machine takes advantage of high mixing, excellent dispersion, high efficiency and high productivity, while minimising power consumption and noise. The machine can be used to recycle many types of plastic flakes as well as pelletize recycled bottles, making the Tianchi more in tune with current market demands.