Views: 30 Author: Site Editor Publish Time: 2021-05-15 Origin: Site
The EPS pre-expander forms the basis for further processing of expandable polystyrene (EPS). Specifically speaking, it is often a automatic EPS machine and is used for expanding polystyrene beads (EPS) and it guarantees the superior performance of the EPS over time and the maximum quality in the EPS processing phase. Generally speaking, a highly efficient and high-quality EPS pre-expander is a fully automatic and reliable machine.
Here is the content list:
l lWhat is the main function of an EPS pre-expander machine?
l lWhat are the types of EPS pre-expander machines?
l lWhat makes an EPS pre-expander machine a high-quality one?
An EPS pre-expander generally have multiple functions and the most important ones are listed as follows:
First, an EPS pre-expander machine can make sure that the production line constantly gets high-quality material and a steady repetitiveness of the production with reduced cycle times.
Second, the EPS pre-expander machine can give the products(EPS) a minimum residual humidity, which is quite important in the quality check.
Third, an EPS pre-expander machine can make sure that the production line can have a broad range of densities available.
Generally speaking, there are two types of EPS pre-expander machine, which were continuous pre-expander machine and batch pre-expander machine. The main difference is that continuous EPS pre-expander machines expand polystyrene through continuous cycle operations and that batch EPS pre-expanders are performed in batches. Another difference is that continuous EPS pre-expander machines are allowed to achieve bead densities between 40g/litre and 15g/litre in the first expansion, but this kind of machines can also be integrated with the second expansion unit to achieve lower densities up to 10g/litre. The batch pre-expanders are specially designed to sacrifice continuity to obtain maximum uniformity and a wide range of material density, therefore in the first expansion, densities level are allowed to be between 100g/litre and 12g/litre. Also, the batch EPS pre-expanders can be integrated with a second expansion unit to achieve lower densities up to 8g/l.
To have a premium EPS pre-expander machine, whatever type it is, the reliable control of densities level is crucial, since the accuracy and uniformity of the density level in the stages of expansion are decisive factors of the yield rate and production speed. Another factor that should take into account, is the reliability of the control system and conveying system, as those two systems ensure the continuity and fluency of the production, it could be really annoying and inefficient when there happen to be a system breakdown. Another thing that is pretty important when judging the quality of an EPS pre-expander is whether it has the ability to distribute homogeneous temperature in the pre-expanding boiler. Besides these two, there still have several other factors that exist but not as significant as these two, such as the ability to ensure even density distribution, and the ability to keep a High material throughput. When all those abilities are obtained by one certain machine, we can say that it is a high-quality one.
If you are looking for a reliable EPS pre-expander machine or EPP machines to purchase, please make sure you check out the ones in Hangzhou Fangyuan Plastic Machinery Co., Ltd, those nice and high-quality machines are definitely appealing to your unique taste.