How to choose the right extrusion machine for your aluminum profiles

Shangli Aluminum stands as a premier Chinese manufacturer specializing in precision aluminum profile processing, equipped with integrated facilities including extrusion plantsCNC machining centers, and anodization treatment units. Our dedication to quality and versatility positions us as the trusted partner for international clients seeking one-stop customized aluminum solutions.


The Core of Aluminum Profile Production: Extrusion Technology

Extrusion forms the foundation of aluminum profile manufacturing. Below, we delve into critical aspects of this process:


1. Extrusion Press Specifications & Profile Cross-Section Diagonals

  • Extruder tonnage is calculated based on extrusion force, with standard models ranging from 500t to 2500t. At Shangli Aluminum, our advanced 5,000-ton extrusion presses enable the production of large-scale aluminum profiles with unmatched precision.
  • Tonnage-to-profile size correlation: Larger extruders accommodate profiles with greater cross-sectional diagonals (see diagram below). The discharge port dimensions of heavy-duty extruders directly determine the maximum profile size achievable.

2. Matching Extruder Size to Aluminum Profiles

  • Extruder selection hinges on the extrusion ratio (λ), calculated as:
    λ = Barrel Cross-Sectional Area / Total Profile Cross-Sectional Area
  • For primary extrusion of aluminum alloys, λ must exceed 8-12 to ensure optimal deformation. Secondary extrusion processes allow greater flexibility.
  • Hollow vs. solid profiles: Structural differences demand tailored extruder tonnage. Our engineers analyze profile geometry, mold design, and alloy properties to match clients’ needs with the ideal machinery.

3. Strategic Tonnage Selection for Quality Assurance

  • Key determinants:
    • Alloy type (e.g., 6061-T6, 7075)
    • Annual production volume
    • Profile maximum circumscribed circle diameter
  • Shangli’s methodology:
    1. Calculate extrusion coefficients to determine deformation limits
    2. Evaluate mold structural requirements (single/double cavities)
    3. Optimize press parameters for surface finish and dimensional stability

Why Partner with Shangli Aluminum?

  • Technical expertise: 30+ years mastering aluminum alloy extrusion for industries ranging from aerospace to renewable energy
  • Quality certifications: ISO 9001, IATF 16949, and RoHS-compliant processes
  • Custom solutions: From high-precision CNC-machined profiles to anti-corrosion anodized finishes
  • Global logistics: Seamless export documentation and JIT delivery

Shangli Aluminum transcends traditional manufacturing – we are innovation partners committed to elevating your projects through advanced aluminum profile engineering.

Contact us today to discover how our tailored aluminum solutions can optimize your product performance and reduce lifecycle costs.

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