China Lightweight Aluminum Alloy Windows Manufacturer, Supplier, Factory

Lightweight aluminum alloy windows are engineered to deliver outstanding performance without the burden of heavy frames, making them an ideal choice for modern construction and renovation projects. Their slim profiles maximize glass area, flooding interiors with natural light while maintaining excellent thermal efficiency. When exploring window solutions, many homeowners and architects turn to Casement Aluminum Windows for their classic, weather-tight seal and easy operation. For spaces that demand smooth, space-saving movement, Sliding Aluminum Windows for Home Use offer an elegant, practical solution that opens up rooms without encroaching on living areas. These designs, along with our other offerings, ensure that every project—whether it requires the comfort and style of Residential Aluminum Windows or the strength and durability demanded by Commercial Aluminum Windows—receives the ideal configuration. Manufactured from high-grade 6063-T5 aluminum alloy, the frames are both corrosion-resistant and exceptionally rigid, allowing for larger spans and thinner sightlines. Thermal break technology, typically a high-performance polyamide strip, is integrated to dramatically reduce heat transfer, helping buildings meet stringent energy codes. This fusion of lightweight design and advanced insulation ensures easy handling during installation, reduced structural load, and long-term savings on heating and cooling.


Lightweight Aluminum Alloy Windows combine precision engineering with a clean, minimalist aesthetic that complements both contemporary and traditional architecture. The frames undergo a multi-stage surface treatment, including chromate conversion coating and either a durable powder coating or anodized finish, to resist chalking, fading, and corrosion even in coastal environments. A multi-chambered profile design enhances rigidity and further boosts thermal efficiency, while EPDM gaskets create a tight seal against wind and water infiltration. The glazing options range from 24mm double-glazed units to 36mm triple-glazed configurations, both filled with argon gas and featuring low-emissivity coatings. These choices deliver U-values as low as 1.4 W/m²K, significantly reducing energy loss. Security is paramount, with stainless steel multi-point locking mechanisms and reinforced corner keys standard across the range. Sound insulation tests show a reduction of up to 35 dB, creating a quieter indoor environment. The lightweight nature of the alloy not only simplifies installation but also allows for larger operable sashes without compromising smooth operation, thanks to precision-engineered roller and hinge systems that support weights up to 150 kg per panel. Customization options include a wide palette of colors, wood-grain effects, and integrated insect screens or concealed motors for smart-home automation.

  • Frame material: 6063-T5 aluminum alloy with polyamide thermal break
  • Wall thickness: 1.4 mm to 2.0 mm, depending on application
  • Surface finish: Powder coating (Qualicoat certified) or anodizing (Qualanod certified), 200+ color options
  • Glazing: Double or triple glass, 24mm–36mm overall thickness, with argon fill and low-E coating
  • Thermal performance: U-values from 1.4 W/m²K to 1.8 W/m²K
  • Acoustic insulation: Up to 35 dB Rw (glass dependent)
  • Weather resistance: Class 4 air permeability, Class 9A water tightness (EN 12208)
  • Hardware: Stainless steel multi-point locks, adjustable hinges, load capacity up to 150 kg
  • Gaskets: Co-extruded EPDM for durability and excellent sealing
  • Compliance: Meets or exceeds NFRC, EN 14351-1, and Passive House standards
Model Series Glazing Option Overall U-value (W/m²K) Sound Reduction (dB) Max Sash Weight (kg) Suitable For
LWA-50 Casement Double 5/16/5 1.6 32 80 Residential, low-rise
LWA-60 Tilt & Turn Triple 5/14/5/14/5 1.4 35 120 Passive house, high-performance
LWA-70 Sliding Double 6/18/6 1.7 30 150 Commercial, wide openings
LWA-80 Folding Triple 4/14/4/14/4 1.5 33 100 Luxury residential, commercial frontage

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