 The centrifugal air classifier is a device used in particle technology to separate materials based on size. It works by creating a vortex in the center of the device, which causes smaller particles to be pushed outward while larger particles remain in the center. This process allows for the separation of different sizes of particles, resulting in a more efficient production process. This article was authored by Vadim Zhinyarov, Vitaly Karkov, Yevgeny Pankratov, and others.