Changsha Wincraft Aluminum Window Tech Co., Ltd. custom manufactures heavy-duty commercial and luxury residential aluminum folding doors (bi-fold doors). Engineered for expansive glass openings, superior airtightness, and energy efficiency, our bi-fold door systems combine thermal break extruded aluminum profiles, multi-point compression locking, and German-engineered roller tracks for effortless operation in demanding climates.
Ultra-slim structural glass system offering unobstructed panoramic views for modern villa balconies and upscale commercial patios.
Insulated folding door series engineered with thermal barriers for high energy efficiency in cold or extreme heating zones.
Reinforced structural profile design built to withstand high traffic in hotel ballrooms, restaurant storefronts, and car showrooms.
Continuous multi-channel EPDM weatherstripping protecting coastal properties against heavy rain infiltration and salt-spray corrosion.
Narrow sightline aluminum profile maximizing natural daylight while delivering robust structural stability for luxury residential projects.
Flexible multi-panel layout combinations (3+0, 3+1, 5+0, 3+3) tailored precisely to architectural elevation drawings.
All bi-fold door systems manufactured by Changsha Wincraft Aluminum Window Tech Co., Ltd. undergo strict quality testing before export. Our engineering team reviews your project drawings to verify wind load requirements, U-factor performance, and local building code compliance prior to production.
| Performance Parameter | Standard Specification | Technical & Material Detail |
|---|---|---|
| Aluminum Alloy Profile | 6063-T5 / 6060-T6 Architectural Grade | |
| Thermal Insulation (U-Factor) | Uf ≤ 1.6 - 2.2 W/(m²·K) | PA66 polyamide thermal strip with Low-E insulated glass units |
| Air Infiltration Rating | Class 4 (EN 12207) / AAMA 101 | EPDM continuous gaskets with multi-point perimeter locks |
| Water Penetration Resistance | Class 9A (600 Pa test pressure) | Concealed internal drainage channels with anti-backflow valves |
| Wind Load Structural Rating | Up to Class C5 (4500 Pa) | Reinforced structural mullions for high-rise and hurricane zones |
| Sound Transmission Reduction | Rw = 38 dB – 45 dB | Laminated acoustic glass options (e.g., 6mm+1.52PVB+6mm) |
Send architectural schedules or CAD drawings. Our engineers analyze structural spans, thermal goals, and opening styles.
Receive detailed CAD section drawings, node details, and renderings within 24 hours for official project sign-off.
4-week production lead time. Automated CNC profile cutting, corner crimping, glass installation, and hardware testing.
Protective wooden crates, container loading inspection, customs documentation, and global sea-freight tracking.
Send your project drawings or specification requirements directly to our engineering export team at [email protected].
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