conical twin screw and barrel 1.Main used for the extruder convey, most important part 2.Material:38CoMoLAIA,coating alloy
Conical twin screw and barrel
1.The SJZ series screw and barrel,mainly used in the plastic manufacturing process,convey material,mixing.
2. It is the most important part of the extruder. The essential shaft of plastic pipe,profile,sheet extruding,and granule making machine.
3.Following main technial standards:
Item | Twin screw and barrel |
L/D | 25:1 |
Material | 38CrMoAIA |
Tempering hardness | 240-280HV |
Nitride layer thickness | 0.5-0.8mm |
Nitride brittleness | <= Grade 2 |
Surface Roughness | Ra0.4m |
Screw Straightness | 0.015mm |
Note:The screw is via the heat treatment,nitriding treatment,high-frequency quenching,Spray-coating the bimetallic layer. | |
4.Picture for reference:
SJZ65 Conical twin screw and barrel
