... 2.working life guarantee 2-3 years. CTSE65/133 Twin Screw ExtruderTwin Screw Extruder Main Technical Parameter SpecificaSJSZ45SJSZ51SJSZ55SJSZ65SJSZ80SJSZ92Diameter of screws(mm)45/9051 ... ,such as Schneider, Yaskawa, Simens,Omron, ABS, etc...---Material of screw and barrel: 38CrMoAlA Azotizing on surface 0.40.7mm Rigidity ... function and long-time life , easy to handle.. CTSE65/133 Twin Screw Extruder