Although resin dryers are often referred to as "auxiliary" equipment, the decision on which type to choose can potentially lead to a plastics processing business strategy. By abandoning the traditional hot air dryer in favor of a completely new type of equipment based on the principle of vacuum drying.
Three strategic challenges are being faced:
1) Intense price competition puts relentless pressure on suppliers, prompting them to cut costs and improve production efficiency;
2) Customers have strict requirements on product quality and balance;
3) Long-term expectations that energy costs will remain high.
The most obvious benefit of a vacuum dryer relates to the third challenge mentioned above: Compared to a similarly sized hot air dryer, a vacuum dryer can save 80% of the energy when fully drying the resin. However, since it only takes one-sixth of the time to complete the process, the use of vacuum dryers has the opportunity to greatly improve production efficiency. In the short term, this can advance the "cold start" time when manufacturers start production on Monday morning; in the long term, it can provide the convenience of a more streamlined, centralized operation. Finally, the shorter dwell time and higher drying efficiency provided by vacuum dryers can reduce product defects and reduce scrap rates.
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