Heavy Duty Aluminum Bi-Fold Door Systems
2.Size: Custom sizes
3.Certifications: CE, 3C, AS
4.Suitable for: Commercial buildings, villas, hotel projects, private residential projects, etc.
5.Trade Terms: DDP, CIF, FOB, EXW, CFR
6.Number of folding fans:2-10
Shaanxi SGL Doors&Windows Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of heavy duty aluminum bi-fold door systems in China, also supports customized service. Please feel free to wholesale high quality heavy duty aluminum bi-fold door systems for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
SGL Heavy Duty Aluminum Bi-Fold Door Systems for Luxury Villas & Commercial Projects
In modern architectural glazing, the Aluminum Bi-Fold Door stands out as the premier solution for maximizing clear opening widths. Unlike sliding systems that always retain a fixed pane, SGL folding systems allow for a 90% unobstructed opening, seamlessly merging indoor and outdoor environments.
Technical Specifications
Below are the engineering parameters for our export-grade bi-fold systems. We support full customization to meet local building codes and specific project requirements.
| Technical Parameter | Specification Details |
| Profile Material | 6063-T5 Virgin Aluminum Alloy |
| Profile Thickness | 2.0mm - 3.0mm (Structural thickness for high wind load) |
| Thermal Break | Technoform Bautec PA66 Nylon Strips (24mm - 34mm width) |
| Glass Configuration | Double (5+12A+5) or Triple (5+12A+5+12A+5) Low-E Toughened |
| Insulation Rating | U-Value: 0.8 - 1.5 W/m²K (Depending on glass selection) |
| Hardware Brands | Siegenia (Germany), Sobinco (Belgium), or Mtuosi (Premium Heavy Duty) |
| Max Panel Size | Width: 1000mm |
| Load Capacity | Up to 150kg per panel (Heavy Duty Rollers) |
| Sealing System | EPDM Composite Gaskets (Automotive grade weatherstripping) |
| Surface Treatment | AkzoNobel Powder Coating (20-year warranty) or PVDF |
| Threshold Options | High Performance Weather Step or Flush Track (ADA Compliant) |
| Certifications | CE, NFRC, AS2047 |
Why Choose SGL Thermal Break Bifold Patio Doors?
For construction contractors and villa owners in regions with significant temperature variance-such as the continental climates found across Central Asia-standard aluminum doors are insufficient. A standard aluminum frame acts as a thermal bridge, transferring external heat or cold directly into the building, leading to massive energy loss and condensation issues.SGL solves this through advanced thermal break bifold patio doors.
Furthermore, large openings often suffer from structural sagging. Many generic folding doors utilize light-duty top guides that warp under the weight of double glazing. SGL engineers the system with a bottom-rolling mechanism on a stainless steel track. This transfers the weight directly to the floor structure, allowing for massive "floor-to-ceiling" designs without compromising operation ease. If you are looking to source complete fenestration packages, you can review our manufacturing capabilities and quality control standards here to understand how we maintain these tolerances.
Product Details
Titanium-magnesium alloy
Material structure A features low density, high strength, is unaffected by changes in temperature and humidity, and is corrosion-resistant.
Thickened frame hinges
Thickened pure copper construction provides strong load-bearing capacity, and 100% all-steel ball bearings ensure smooth and flexible door operation for a long time.
EPDM rubber seals
The sealing strip cavity uses EPDM (ethylene propylene diene monomer) sealing strips, which are wear-resistant, resistant to aging, and provide comprehensive waterproofing and sound insulation.
Logistics machinery
The foldable design creates a more spacious feel and allows for a better view of the exterior.
High-quality hardware handles
Made from selected high-quality zinc alloy materials, ensuring a longer lifespan. It features a simple and stylish design, strong corrosion resistance, and becomes brighter with use.
Silent pulleys and tracks
Featuring advanced European design, the top and bottom tracks slide simultaneously for enhanced load-bearing capacity. The bottom track design incorporates double drainage strips and a drainage system, completely eliminating problems of aging and leakage of the sealing strips.
Double-layered tempered glass
The materials used are 5mm double-layered tempered glass, and the 12mm thick hollow aluminum strips effectively reduce sound wave resonance and block sound transmission, resulting in a noise reduction of over 30 dB.
Foldable design
This type of door uses upper and lowe r tracks for horizontal movement, with multiple panels that fold and slide to the side. It opens silently, takes up minimal space, and is aesthetically pleasing and elegant.
Application Scenarios
FAQ
Q1: What is the maximum width per panel for SGL Aluminum Bi-Fold Doors?
A1: For our heavy-duty systems, we recommend a maximum panel width of 1000mm and a height of up to 3500mm. While wider panels are physically possible, keeping them under 1000mm ensures the hardware lifespan is maximized and the doors remain easy for a single person to operate.
Q2: Are your bi-fold doors water-tight against heavy storms?
A2: Yes. We utilize a triple-seal system with automotive-grade EPDM gaskets. When equipped with our "High Performance Weather Step" (a raised bottom threshold), the system achieves excellent water penetration resistance ratings (up to 1000Pa), making them suitable for coastal or high-wind zones.
Q3: How does the "Thermal Break" affect the price?
A3: Thermal break profiles are approximately 30-40% more expensive than non-thermal aluminum due to the complexity of manufacturing and the cost of PA66 nylon. However, for regions with cold winters (like Central Asia) or hot summers, the investment is recovered through reduced HVAC energy costs within 3-5 years.
Q4: Can you ship custom size folding doors to Central Asia?
A4: Yes, SGL has extensive experience exporting to Kazakhstan, Uzbekistan, and surrounding regions. We use export-grade wooden crate packaging to protect the glass and frames during rail or truck transport. We can handle EXW, FOB, or CIF trade terms depending on your logistics preference.
Q5: Do you provide the fly screen with the doors?
A5: Yes, we offer an integrated retractable pleated mesh screen (accordion mesh). This screen can be built into the door frame system or installed as a separate add-on. It is essential for keeping insects out while maintaining ventilation when the glass doors are fully open.
Q6: What is the lead time for a typical order?
A6: For standard colors (Black, White, Grey) and standard profiles, production time is typically 20-25 days. For custom powder coating colors or special glass requirements (e.g., integral blinds or laminated glass), the lead time is approximately 30-35 days.
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