Abstract
The article proposes a method of processing fiberglass to obtain a fibrous component used as reinforcing filler for the manufacture of secondary composite materials. The obtained analytical dependencies can be used to develop the design of the mill elements, as well as to optimize the grinding process When disposing of products made of fibrous composite material, the following scheme is proposed. The proposed analytical method for determining the modes of the grinding process solves the problem of choosing the preferred parameters of the mill operation depending on its functional dimensions and properties of components in a fibrous secondary composite material.