Top China Aluminium Single Hung Windows Manufacturer & Suppliers

Single hung windows feature a fixed upper glass lite direct-glazed into the main perimeter frame. This design eliminates the horizontal meeting-rail sliding seals and upper pulley mechanisms characteristic of double hung systems. Consequently, single hung units exhibit higher structural rigidity under positive and negative windloads, superior static water resistance (often exceeding DP 50 to DP 75), and significantly reduced long-term air leakage rates, making them the preferred specification for high-exposure coastal regions and commercial multi-family projects.

We isolate the exterior and interior 6063-T5 aluminum extrusions using precision-crimped 24mm to 34mm Technoform PA66 GF25 polyamide thermal break bars. This physical barrier arrests conductive heat transfer through the frame. In combination with argon-filled warm-edge insulating glass units (incorporating Low-E coatings such as Solarban 60/70), our fenestration assemblies routinely achieve Condensation Resistance (CR) ratings above 65 and overall system U-factors below 0.24 BTU/hr·ft²·°F.

Depending on sash dimensions and glass weight (especially when triple-glazed or laminated hurricane-impact glass is specified), we integrate heavy-duty constant-force coil spring balances or commercial-grade Caldwell spiral balances. These mechanisms are pre-tensioned to match sash weight down to the ounce, ensuring smooth, effortless vertical travel (< 20 N opening/closing force) while preventing sash drift and passing 25,000-cycle operational fatigue testing.

Yes. Our hurricane-impact single hung product lines are engineered to comply with TAS 201 (Large Missile Impact), TAS 202 (Uniform Structural Load), and TAS 203 (Cyclic Pressure Testing) protocols. Featuring structural SentryGlas (SGP) or high-tensile PVB laminated glass packs and internal heavy-duty aluminum reinforcement mullions, our impact-rated units maintain envelope security under design pressures exceeding ±70 PSF.

All aluminum extrusions are pre-treated using chrome-free conversion coatings before the electrostatic application of certified AkzoNobel or PPG fluoropolymer (PVDF) powder coats compliant with AAMA 2604 or AAMA 2605 specifications. This ensures 10- to 20-year color retention, chalking resistance, and salt-spray corrosion protection suitable for oceanfront environments. Custom RAL colors and architectural anodized finishes (up to 25 microns) are available.

Yes. We offer both side-load and tilt-in sash variants. Our tilt-in models feature recessed, flush-mounted ergonomic tilt latches and heavy-duty stainless steel pivot pins that allow the lower sash to pivot inward 90 degrees for safe interior cleaning. The latching hardware is engineered with positive-lock detents to prevent accidental disengagement during normal vertical sliding motion.

For standard profile configurations and stock architectural colors (such as Matte Black, Anthracite Grey, or Traffic White), lead time is typically 25 to 35 calendar days following shop drawing approval. Fully custom extrusions, custom RAL powder shades, or specialized curved architectural heads require 40 to 45 days. Our flexible MOQ policy accommodates boutique luxury projects from 20 units up to full container-load multi-family developments exceeding 1,000 units.

Every window unit is wrapped with low-tack protective film on extrusions, corner-guarded with high-density EVA bumpers, and heat-sealed in an airtight polyethylene moisture-barrier wrap with industrial silica desiccant bags. Units are packed vertically in ISPM-15 fumigated plywood crates reinforced with internal steel strapping. This prevents container condensation corrosion, glass scratching, and racking distortion across 30+ day ocean voyages.

Yes. We provide complete technical submittal packages for municipal building authority approval. Deliverables include detailed CAD shop drawings (plan, section, and installation details), finite element thermal simulation reports (LBNL THERM/WINDOW), independent laboratory test certificates (AAMA, NFRC, CE EN 14351-1, or AS 2047), and structural engineering anchor calculations sealed by accredited engineers upon request.

Absolutely. We offer removable half-screens or full-length exterior screens fitted with high-transparency fiberglass mesh, pet-resistant polyester mesh, or high-security 304 marine-grade stainless steel wire cloth. Architectural muntin configurations include Grids Between Glass (GBG), Simulated Divided Lites (SDL) with internal spacer bars for true historic authenticity, and surface-applied colonial or prairie profiles color-matched to the window frame.