... board materials, sheets, bars, and granulating materials. 2.Twin screw extruder adopts oil cooling system while the barrel adopts ... air cooling system. 3.Twin screw extruder system is controlled by dedicated computers. ... failure alarm functions, reducing failures and facilitating troubleshooting. Twin screw extruder specification:ModelSJZ-45SJZ-51SJZ-55SJZ-65SJZ-80ISJZ- ...