SJ Series Single Screw Extruder SJ Series Single Screw Extruder can be widely used in the process of polyolefin pipe and used for making thermo-plastics such as PVC, PP-R, PE, PEX, PP, ABS, etc, Main Technical Parameters. Item No. SJ-30 SJ-45 SJ-55 SJ-65 SJ-75 SJ-90 SJ-100 SJ-120 SJ-150 Screw Diameter(mm) 30 45 55 65 75 90 100 120 150 L/D 25:1 25:1(28:1) 25:1(28:1, 30:1, 33:1) Main Motor Power (KW) 3 11 15 22 37 55 75 90 110 Barrel Heating Power (KW) 3 6 11 16 20 36 42 56 72 Central Height(mm) 1000 1100 1200 1300 Screw Rotate Speed (r/min.) 140 120 100 90 85 75 70 60 60 Plasticization Capacity(kg/h) 30 50 70 80 100 130 160 200 300