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ZE77 Silver Covey Screw Element , Extruder Screw Material HRC58 - 62 Hardness

Mixing Screw Element
December 14, 2025
Category Connection: Mixing Screw Element
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Tags:
#double screw extruder machine screws #kneading block #extruder screw material
Brief: Ever wondered how the ZE77 Silver Covey Screw Element achieves superior performance in twin-screw extruders? This video provides a detailed walkthrough of its high-hardness construction, material selection for wear and corrosion resistance, and the precision manufacturing process that ensures zero-seam connection and interchangeability.
Related Product Features:
  • Engineered with high hardness of HRC58-62 for exceptional durability and wear resistance.
  • Available in a wide screw diameter range from Φ15.6mm to Φ430mm to fit various extruder models.
  • Compatible with major twin-screw extruder brands including W&P, Berstorff, Leistritz, and JSW.
  • Constructed from specialized materials like SAM10, SAM39, and W6Mo5Cr4V2 for specific wear and corrosion applications.
  • Features precision CNC machining and in-house heat treatment for superior dimensional accuracy and performance.
  • Includes various screw element types such as conveying screws, kneading blocks, and deep groove transfer elements.
  • Offers surface treatments like polishing and sand blasting for optimized material flow and reduced friction.
  • Backed by a 1-year warranty and supported by a professional technical team for design and service.
Faqs:
  • What materials are used for wear-resistant applications?
    For wear applications, the ZE77 screw elements are made from tool steel like W6Mo5Cr4V2 or PM-HIP materials such as SAM10, SAM26, SAM39, CPM10V, and CPM9V to ensure long-lasting performance.
  • How does the manufacturing process ensure high precision?
    We perform finishing processes after heat treatment to eliminate deformation, achieving zero-seam connection. All components are CNC machined, and internal splines are checked for interchangeability.
  • What is the delivery time for these screw elements?
    Standard delivery is within 30 days after payment, with common components often shipped in 45 days or less, supported by our efficient manufacturing and inventory management.
  • Are you a manufacturer or a trading company?
    We are the factory, located in Chengdu, Sichuan Province, China, and we welcome visits from international clients to see our production and quality control processes firsthand.
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