The cost difference between cast aluminum doors and ordinary aluminum alloy doors primarily stems from material composition, manufacturing processes, and structural properties.
Material Composition and Purity:
Cast aluminum doors are made from high-purity aluminum alloys, often blended with elements like silicon and magnesium to enhance strength and corrosion resistance. In contrast, ordinary aluminum alloy doors typically use extruded or rolled aluminum profiles with simpler alloy compositions, reducing material costs.
Production Techniques:
Cast aluminum doors involve complex processes such as melting, mold pouring, and post-casting treatments (e.g., heat treatment, sandblasting, and high-temperature baking for surface finishes). These steps require specialized equipment and labor, increasing production costs. Ordinary aluminum doors, however, are manufactured via extrusion or rolling, which are more cost-effective and suitable for mass production.
Material Thickness:
Cast aluminum doors use thicker panels (typically 4–8 mm) to ensure durability and anti-impact performance, whereas ordinary aluminum doors often employ thinner sheets (1.2–2.0 mm) to reduce weight and material usage.
Surface Treatment:
Cast aluminum doors undergo advanced coatings like fluorocarbon paint or anodizing for weather resistance, adding 20–30% to material costs. Ordinary aluminum doors use simpler powder coatings or electrophoretic finishes, which are less expensive.
Structural Design:
Cast aluminum doors often integrate reinforced cores (e.g., aviation-grade aluminum honeycomb) and multi-layer sealing systems, further raising material and assembly costs. Ordinary aluminum doors prioritize lightweight designs with basic thermal breaks or hollow profiles.
In summary, cast aluminum doors incur 50–100% higher material costs than ordinary aluminum doors due to premium alloys, intricate manufacturing, and enhanced structural features. These attributes make them ideal for high-end Entrance Doors, secure Room Doors, and luxurious Villa Doors.
