... , extruding systems, cutting systems, heating systems,gearing systems, lubricating system, control system. Main features:A:extruding systems: the screw with high ... feeding system of the extruder all use the frequency to control the speed ,the frequency we use is : DELTA,the gear ... : we add the cooling system on each zone,it can control the temperature well. JDS65 double screw animal food extruder ...