The SRL series mixing unit is mainly used for mixing polyvinyl chloride resin, coloring, coloring and drying of polyethylene and polypropylene particles ABS、 Drying of moisture absorbing resins such as polycarbonate and mixing of phenolic resins before molding and processing, followed by cooling and stirring to prevent clumping and degradation of hot mixed materials, allowing additives in the hot mixed materials to continue to penetrate into the plastic resin, eliminating residual gases in the hot mixed materials, and storing hot mixed materials. This unit has the characteristics of fast and uniform cooling, stable and reliable quality, sturdy and durable, easy operation, compact structure, etc., and can meet the requirements of plastic production processes. It is an ideal equipment used in various plastic product industries.