... -45SJZ-51 SJZ-55 SJZ-65 SJZ-80SJZ-92 Screw Diameter(mm) 45/9051/105 55/110 65/132 ... 80/156 92/188 Screw Speed max (r/min)45.837 34.8 34 ... .7 34.7 32.9 Screw effective length(mm) 9911190 1195 1440 1800 2500 Main ... email. Relative name:twin screw extruder ,plastic extruder,extruder machine,double screw extruder , conical twin screw extruder ,extruder machine,extrusion machine ...