·SRL-Z series mixing machinery group has applied PLC control,it is mainly used for mixing,coloring,drying of all sorts of resins such as polythene,polypropyline,PVC,and dying,serpartion and volatility,etc. of engineering plastics such as ABS,polycarbonate before shaping processing. It can also be used in mixing of bakelite. This machinery group has combined the technology of hot mixing and cold mixing,the material after hot mixing automatically enters into cold mixing so as to get cooled and exit remaining gas and prevent blocking.