features and application: controlled by PLC microcomputer, dyhl series combined machine unitis mainly used batching, mixing, coloring and drying for various resins, such as polythene, polypropylene and pvc, as well as the drying and volatilizing process of engineering plastics such as abs and polycarbonate before shaping, it can also be used for bakelite. this unit has combined the technology of hot mixing and cool mixing, which can let the material after hot mixing automatically enter cool mixing so as to cool it and vent the remnant to gas prevent blocking.