Specifications:
Diameter:Ф16-Ф300
Length/Diameter Ratio:L/D=15-40
I material:38crMoAIA,sitriding treatment,surface hardness。HV≥900 Depth of nitration case:0.5-0.8mm
II Material:Surface WC/CO overall spray welding, can effectively improve the service life of the screw.
Types of screw:
Gradual , saltain, wave, screen, double screen,taper,distribntary,saparating, exausting dowel,mixed smelting,double screws,three screws,more screws,granulating etc.