Specification:
Diameter: Φ45/2~Φ250/2
L/D ratio: 16-40
The compression ratio of screws can be designed according to different raw material and products.
1.Barrel material: 38CrMoAlA
Nitride treatment, surface hardness: HV≥900
Nitride layer thickness: 0.5~0.8mm
2.Screw alloy material: 38CrMoAlA as basic material, bimetallic
alloy is welded on the screw flight , prolonging the life of the screw.
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