Architectural Aluminum Folding Windows for High-Span Openings
Grandor Door Industry Co., Ltd. designs and manufactures commercial-grade thermal-break aluminum folding windows (bi-fold windows) tailored for overseas builders, distributors, and architectural developments.
Featuring precision-engineered top and bottom roller guide tracks, our bi-fold glass systems collapse smoothly to one or both sides. This creates expansive 90%+ unobstructed wall openings that connect kitchens, indoor dining areas, and living spaces to outdoor patios and entertaining areas.
Every profile, thermal barrier, double-glazed panel, and multi-point lock is built inside our 155,000 m² integrated factory to meet strict global standards including AS2047, CE, and NFRC compliance.
| System Specifications at a Glance | |
|---|---|
| Profile Material | High-density 6063-T5 architectural aluminum profile |
| Profile Thickness | 1.4mm – 2.0mm structural wall thickness |
| Thermal Break | PA66 polyamide thermal insulation strips |
| Glazing Build-Up | 5mm+12A+5mm double tempered Low-E / Triple glass |
| Hardware Brand | German Siegenia, HOPO, or Grandor Heavy-Duty Systems |
| Weather Sealing | Triple EPDM compression gaskets with drainage channel |
| Max Opening Width | Up to 12.0 meters (custom panel combinations) |
Engineered Aluminum Folding Window Systems
Select from our featured bi-fold window configurations engineered for weather tight seals, effortless operation, and long-term durability.
Thermal-Break 75 Series Folding Window
Polyamide thermal-break profiles with multi-point locking mechanisms for extreme energy efficiency and high wind load resistance.
Kitchen Servery Folding Window
Bottom-hung smooth glide tracks allowing complete panel folding, perfect for kitchen-to-patio counters and hospitality servery bars.
Heavy-Span Commercial Bi-Fold Window
Reinforced aluminum framing supporting oversized glass panes for luxury residential villas, restaurants, and retail facades.
Why Global Importers & Builders Choose Grandor Bi-Fold Windows
Full in-house processing ensures uniform quality, fast turnaround times, and verified performance compliance.
Thermal Efficiency & Insulation
Polyamide thermal breaks combined with insulated Low-E glass units reduce heat gain in summer and maintain room warmth in winter, lowering overall energy bills.
Heavy-Duty Roller Tracks
Top-hung or bottom-hung stainless steel carriage wheels deliver smooth, quiet operation across thousands of opening cycles without sash sagging.
Custom Surface Finishes
Choose from AkzoNobel powder coatings, anodized silver/black, or heat-transfer wood grain finishes tailored to your climate and regional market aesthetics.
Tested to International Window Standards
Grandor Door Industry Co., Ltd. eliminates installation and compliance risks by testing structural strength, water tightness, and air infiltration prior to packaging.
- 3D Shop drawings and window schedules verified before production.
- Third-party factory inspection (SGS, TUV, Intertek) welcome.
- Heavy plywood crate packaging protects glass and profiles in container transit.
Frequently Asked Questions
Direct technical answers for architects, project managers, and wholesale importers.
What is the maximum opening size for aluminum folding windows?
Grandor engineered folding windows can span up to 12 meters in total width with individual sash heights up to 2.8 meters. Custom configurations from 2 to 8 panels are fully supported.
Are Grandor aluminum folding windows weather-tight and wind-resistant?
Yes. Our bi-fold systems utilize continuous triple EPDM gaskets, multi-point compression locks, and heavy-duty stainless steel top and bottom roller tracks to pass rigorous air filtration and water penetration testing.
Can aluminum bi-fold windows be built with thermal break profiles?
Absolutely. We extrude structural 6063-T5 aluminum profiles insulated with PA66 polyamide thermal break strips to minimize thermal bridge effect and ensure low U-values.
What custom finishes and glass options are available for wholesale orders?
Options include AkzoNobel powder coating, anodizing, PVDF coating, and realistic wood grain transfer finishes, combined with double or triple Low-E tempered, argon-filled, or laminated safety glass.
Get Your Factory Quote in 5 Steps
Send your project details for an accurate engineering proposal and pricing structure.
- Architectural drawingsPDF, CAD files, or elevation sketches.
- Window schedulePanel counts, opening direction, and dimensions.
- Performance targetsRequired U-value, wind pressure, or acoustic ratings.
- Surface & glazingRAL finish color, Low-E or laminated glass specification.
- Destination portTarget delivery timeframe and shipping destination.
Order Custom Aluminum Folding Windows Direct from Factory
Contact our engineering sales team to request technical specs, CAD drawings, sample kits, or direct wholesale quotes for your project.
- Direct factory price with transparent tier pricing for distributors.
- Dedicated engineering support from design to installation guidance.
- Fast production turnarounds backed by 155,000 m² manufacturing capacity.