Designed for modern villas and premium residential projects, this aluminum bifold door combines a strong thermal-break aluminum structure with smooth operation and reliable weather protection.
Equipped with HOPPE hardware from Germany, providing reliable operation, durability and a refined user experience.
The 2.0mm thermal-break aluminum profile provides a strong and stable frame structure, suitable for large-size folding door configurations.
The double EPDM sealing system improves air and water resistance while helping reduce drafts and outdoor noise.
The stainless steel bottom rail provides smooth and stable panel movement for effortless daily operation.
The folding configuration allows multiple door panels to stack neatly to the side, creating a wide, unobstructed opening and seamless connection between indoor and outdoor spaces.
LANGE boasts a modern 20,000mยณ manufacturing facility and is a global leader in high-performance window and door systems. We are equipped with world-class precision technology, including the German Elumatec SBZ 628 CNC Processing Center and the Sigma Fully Automatic Corner Crimping Line, ensuring every joint reaches micron-level accuracy.
Perfect for modern architectural and residential projects, including:
Large openings and premium design for high-end villa projects.
Ideal for living rooms, dining areas and spaces requiring wide openings.
Creates a seamless connection between indoor and outdoor spaces.
Bifold panels can be neatly stacked to maximize the open space.
Suitable for premium hospitality projects with large glass openings.
Combines slim modern aesthetics, thermal insulation and smooth operation.
| Issues of concern | Lange solutions |
|---|---|
| Sagging After Long-term Use: Excessive leaf weight causes track deformation over time. | Reinforced Guide Rails: 3.0mm thick aviation-grade aluminum tracks paired with precision steel bearings guarantee zero sagging for 10 years. |
| Air & Water Leakage: Numerous folding joints often lead to poor sealing and moisture penetration. | Multi-layer EPDM Sealing: Double sealing strips at every joint ensure premium airtightness and Class 4+ watertightness. |
| Logistics Damage: Large-scale glass folding doors are highly fragile during international shipping. | Steel-Reinforced Crates: Custom-engineered steel-wood composite packaging, maintaining a damage rate of less than 0.1%. |
Folding door detail drawing instructions (opening methods can be combined arbitrarily): Odd + Odd, Odd + Even, Odd + 0; Even + Even, Even + Odd, Even + 0