Kvp Bimetalic Screw Barrels, Color : Silver

·        Specifications:

·        Screw Diameter: Typically ranges from 14mm to 250mm. 

·        Barrel Diameter: Can range from 14mm to 300mm. 

·        Screw Length: May reach 4.5 meters. 

·        Barrel Length: Can be up to 5 meters. 

·        Length-to-Diameter Ratio (L/D): This ratio, along with other screw design parameters, impacts mixing and material flow. Common L/D ratios for bimetallic screws include 6, 8, 10, 12, 20, 21, 22, 25, 26, 28, 30, 31, 32, 33, 34, 35, 36, 38, 40, 45, and 50. 

·        Nitriding: A surface hardening process can be applied to the screw and barrel, increasing wear resistance. Depth of nitriding can be 0.5mm-0.8mm, and hardness can reach HV850°-1000°. 

·        Surface Hardness: HV ≥ 900. 

·        Materials: Commonly, alloy steel, and bimetallic construction (combining different metals for enhanced wear resistance) are used. 

·        Coatings: Special coatings, such as hard chrome plating or TC coating, are applied to protect against wear and corrosion.