Material selection
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high-quality 38CrMoALA
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Surface hardness
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HV: ≥ 290
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Nitriding hardness
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HV950-1000
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Nitriding depth
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0.45-0.7mm
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Nitriding brittleness
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≤ Level 1
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Surface roughness
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Ra0.4
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Screw straightness
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0.015mm
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Surface chrome plating hardness after nitriding
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≥ 900HV
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Chrome plating thickness
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0.05-0.10mm
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Dual alloy hardness
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60-70HRC
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45/90 (diameter) 45/100 (diameter) 50/105 (diameter) 51/105 (diameter) 55/100 (diameter) 80/125 (diameter) 65/132 (diameter) 80/143 (diameter) 80/158 (diameter) 92/188 (diameter) screws choose different compression ratios according to different formulas and products
Scope of application:
Ordinary plastics, PP, PE, ABS, PVC, raw material granulation, production of pipes, profiles, sheets, wood plastic, and other extrusion machinery.
Product advantages:
The opposite rotation of the conical screw and the gradually transitioning diameter design enable the material to be strongly stirred and sheared in the screw, thereby achieving a uniform plasticizing effect. On the premise of ensuring quality, the conical screw can increase the speed of the extruder, thereby significantly improving production capacity. Through precise temperature control systems and overload protection functions, the conical screw maintains stable performance during operation, thereby ensuring consistency in product quality. Whether it is plastic processing or material handling and mixing in industries such as chemical and pharmaceutical, conical screws have shown great advantages.