Swirl Flow Classifier | PRECI Co., Ltd.

Our patented swirl flow classifier HELIX is a classification module that can improve the powder recovery rate at the bottom of the process chamber in spray dryers, spray coolers, and freeze granulators. Powered by process gas and no electrical work is required. Even in existing production processes, HELIX can be installed simply by hand.

In fine ceramics industry, granules collected at the bottom of the drying chamber are generally treated as 1st grade products. Fine powders that have passed through the process chamber is collected by a cyclone. Finer granules collected by a cyclone may collapse due to the swirling flow inside the cyclone, so they may be discarded without being treated as a product, or they may be returned to raw materials and reused. Therefore, improving the recovery efficiency at the bottom of the process chamber will lead to higher process production efficiency. HELIX reduces powder passing through the process chamber by creating a swirling flow using rotating impellers powered by process gas. By simply installing the unit at the top of the cyclone duct, it is possible to improve the collection efficiency at the bottom of the chamber.

Our spray dryers, spray coolers, and freeze granulators can be equipped with swirl flow classifiers. Based on our accumulated technologies, we provide optimal manufacturing processes. In addition, we not only provide powder processing trials for spray drying, spray cooling, and freeze granulation, but also services that include pre- and post-powder processing, such as wet pulverizing, mixing, molding, sintering and freeze-drying. We operate a total of three locations: two Powder Technical Centers in Japan and ASEAN Powder Technical Center in Thailand under the partnership with T.S.K. Engineering. Our brand new Powder Technical Center 2 (PTC2), which was newly established in 2023, has one of the largest collections of analytical measurement equipment in Japan. We provide one-stop support for powder processing and analytical measurements (Powder Trials & Analytical Measurements / Contract Powder Processing).