With more than 10 years' experience in machine manufacture and our new technology, we developed SJSZ-45, 50, 55, 65, 68, 80, 92 conical twin-screw extruders. This series of extruders have excellent advantages of good compounding, high output, stable operation, great application range, long live span, and PVC powder direct processing. They can also be used in the production of pipes, profiles, sheets and pelletizing with suitable die and accessory machines.Temperature adjusting equipment of the screw core: using heat stick type inner cycle cooling system or auto-adjusting temperature control type outer cycle cooling systemBarrel cooling: wind cooling or outer cycle oil coolingTemperature control instrument: RKC instrument or local made instrumentSpeed adjusting equipment of main machine: silicon control direct current stepless speed regulation or Japan's frequency conversion alternation current speed regulation or England's digital direct current speed regulationCustomers can make the choice according their own requirements.