... feeding, auto feeder, motor driver, and control panel. conical twin screw extruder includes parts pls see the followings:the material of ... all of parts is 38CrMoAL1. screw is 65/132mmm of diameter, L/D is ... , adopts inner cycling water cooling, materail of axle is high alloy steel.4. dose feeding, mode is sprial.5 ... .control panel, the contrator is germany siemens twin screw extruder