Screw and Barrel for Rubber-making Machine
Cold Feed Pin barrel screw specifications: Ø60-Ø300 L/D=12-18
Rubber cold feeding screw specifications:Φ45mm~Φ300mm L/D=8-20
Rubber hot feeding screew specifications:Φ40mm~Φ300mm L/D=4-6
Material: 38CrMoALA
Surface Treatment: PTA, Vacuum heat treatment, Gas nitrided , Hard chrome plating, phorphor nickel alloy plating.
Technical Data:
Technical Data:
☆Regulating rigidity:HB260-290
☆Nitriding Hardness:HV900-1000(HRc56°-65°)
☆Nitrided layer thickness:0.5-0.7mm
☆Fragility of nitration:≤Two class
☆Roughness of the surface:Ra0.4um
☆Linearity of the screw:≤0.015mm
☆Linear axis limit:≤0.02mm
As per customers’ demand, we can supply accessories, a plastic head, apron, shoot flange nuts, mouth., etc