1 / 5
LANGE Modern Aluminum Alloy Folding Door Folding Aluminum Sliding Doors For Residential And Commercial Patio Balcony
Product Description
ALUMINUM BI-FOLD FOLDING DOOR Fold Open the Wall. Embrace the Outside
REDEFINE YOUR LIVING SPACE
The LANGE Aluminum Bi-Fold Door transforms any wall into a fully open panoramic passage. Engineered for luxury villas, high-end apartments, and commercial spaces, our bi-fold system delivers the perfect fusion of architectural beauty, structural precision, and effortless operation — connecting interior and exterior living like never before.
The LANGE Aluminum Bi-Fold Door transforms any wall into a fully open panoramic passage. Engineered for luxury villas, high-end apartments, and commercial spaces, our bi-fold system delivers the perfect fusion of architectural beauty, structural precision, and effortless operation — connecting interior and exterior living like never before.
Products Description
✓
Reinforced thickened aluminum profile + multi-point locking system, stable & wind resistant
✓
Standardized production line, 100% batch inspection, uniform product quality
✓
Full customization support: size, color, glass, hardware, opening mode
✓
100% factory direct sales, flexible MOQ, big discount for bulk order
✓
Professional overseas technical team, 5-year official warranty, 24h online service
Why Choose Us
LANGE boasts a modern 20,000m³ 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.
Our Advantages
Product Showcase
Commercial & Residential Folding Patio Door, Space-Saving, Soundproof, Waterproof, Thermal Insulation, Perfect for Villa, Balcony, Hotel, Office & Project Engineering.
Customer Feedback
| 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%. |
Product Parameters
Folding door detail drawing instructions (opening methods can be combined arbitrarily): Odd + Odd, Odd + Even, Odd + 0; Even + Even, Even + Odd, Even + 0.
Company Profile
Zhengzhou Lange Intelligent Technology Co., Ltd. is a leading integrated enterprise specializing in high-performance system windows and Intelligent Space/Sleep Pods. With 22 years of engineering excellence and 80+ sets of CNC equipment, we maintain a 500,000 SQM annual capacity. As a strategic partner of YKK, LIXIL, and LG, we cross-apply premium insulation technology to our "Plug-and-Play" space pods for glamping and commercial use. Guided by craftsmanship, we turn customer expectations into reality with integrity and precision.
Frequently Asked Questions
Are you a factory?
Yes, we have our own manufacturing factory with over 22 years of experience, located in Zhengzhou, Henan Province.
As a first-time online buyer from China, how does the operation work?
Don't worry. With over 20 years of export experience worldwide, our team provides complete professional support throughout the process: Order → Production → Shipment → Delivery.
How long is the delivery cycle?
Delivery time depends on dimensions, glass configuration, color, hardware, customization level, and order quantity. Once technical specifications and payment terms are confirmed, we provide a formal production schedule. We advise planning sufficient time for production, QC, and international shipping.
Can this Aluminum folding door be customized in size?
Yes. Doorway dimensions, panel counts, opening configurations, glass types, finishes, lock systems, and tracks are fully customizable. Please supply opening width, height, structural context, and on-site photos for a tailored solution.
What are your payment terms and methods?
We offer flexible terms: T/T (30% deposit, 70% balance before shipment) and 100% irrevocable L/C at sight. We also support 100% upfront or deposit setups via Wire Transfer, Online Transfer, Credit Card, VISA, PayPal, and Apple Pay.
What warranty and after-sales service do you provide?
We provide a 5-year official warranty supported by our professional overseas technical engineering team and 24-hour online customer service.
