Diameter：Ф16-Ф300
Length/Diameter Ratio：L/D=15-40
Surface WC/CO overall spray welding can effectively improve the service life of the screw. There are gradient type, mutant type, wave type, barrier type, dual screen type, split type, separate type, exhaust type, pin type, hybrid type, double type, triple type, multi type, granulation type, etc.
Extruder screw specifications：
Diameter：Ф16-Ф300
Length/Diameter Ratio：L/D=15-40
Technical Indexes
1、General material:38crMoAIA，Nitriding treatment，Surface hardness HV≥900。Depth of nitration case：0.5-0.8mm
2、Commonly used materials: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.
