In the production of fine powders such as dyes, phosphors and catalysts, powder cleanliness and uniformity are the core determinants of finished product quality. Such high-end powders are extremely sensitive to impurities. Minor metallic contamination, uneven particle sizes and poor dispersibility will directly impair the color rendering, stability and service performance of products — these are also prevalent pain points across the industry.

To meet the production demands of such high-value-added powders, the QWJ series jet mills developed by Qingdao Shina optimize conventional grinding processes and eliminate impurity contamination at the source of production. Adopting the fluidized-bed jet impact grinding principle, the equipment operates without contact or friction from grinding media throughout the process, completely eradicating the risk of metallic debris incorporation. It fully satisfies the strict cleanliness requirements for manufacturing dyes, phosphors, catalysts and other high-purity powders.

In terms of fineness control, the QWJ series jet mills from Qingdao Shina enable flexible particle size adjustment ranging from 3 μm to 100 μm, precisely matching the production specifications of various powder varieties. Powders processed via jet milling feature uniform particle size distribution and superior dispersibility, which can fully unlock the color rendering performance of dyes and phosphors as well as the catalytic reactivity of catalysts. Consistent powder quality effectively cuts the reject rate of finished goods and reduces material and time losses caused by rework. It lays a solid quality foundation for fine powder manufacturing and caters to large-scale, precision processing of all types of high-end powders.