Aluminum Bifold Exterior Door
Custom Folding Door
Folding Patio Door
TAFD70 system has a special part “mullion”, which connects two door panels. With this special design, the system has a much better performance on both air and water tightness, this also makes the system withstand more wind load.
The TAFD70 is a premium aluminum folding door system that represents a masterful blend of engineering and modern design. Its most distinctive feature is the innovative “mullion” component, which connects two door panels to provide superior structural stability. With a robust 77mm structure depth and an impressive maximum height of 3000mm, this system is designed to create expansive, light-filled openings while maintaining exceptional weather resistance. Whether for high-end residential patios or modern commercial storefronts, the TAFD70 offers a seamless transition between indoor and outdoor spaces with fully customizable aesthetics and configurations.
![]()
The unique “mullion” design seamlessly connects door panels, significantly enhancing the system’s overall structural integrity. This special construction ensures much better performance in preventing air and water infiltration compared to standard folding systems.
Engineered for harsh environments, the TAFD70 utilizes multi-layered sealing and the precision-fit mullion to ensure the interior remains dry and draft-free, even during heavy rainstorms and extreme weather conditions.
The reinforced 77mm profile and innovative panel connections allow the system to withstand significant wind pressure. This makes it a reliable choice for high-rise buildings and coastal applications where wind loads are a primary concern.
Designed to accommodate high-performance insulated or laminated insulated glass, the TAFD70 minimizes heat transfer. When combined with thermal break profiles, it contributes to reduced energy costs and a more comfortable indoor climate year-round.
To cater to different architectural layouts and user preferences, the system offers flexible opening configurations, including swing outward or swing inward options, allowing for optimized space utilization.
Built with high-quality aluminum alloy, the frames are naturally resistant to rust, corrosion, and UV radiation. The system is designed to maintain its structural functionality and surface finish for decades without warping or cracking.
The slim yet strong aluminum profiles allow for large glass panels and a maximum height of 3000mm, maximizing unobstructed views and natural light entry to enhance the ambiance of any space.
The robust construction and high-quality surface treatments ensure that the doors require minimal upkeep. Occasional simple cleaning of the glass and tracks is typically all that is needed to keep the system in peak condition.
Parameter | Description / Value |
Material | High-quality Aluminum Alloy |
Structure Depth | 77mm |
Feature | Special Mullion Panel Connection |
Max Height | 3000mm |
Glazing Type | Insulated Glass / Laminated Insulated Glass |
Frame Color | Customized (Powder Coated, Anodized, or Wood Grain) |
Opening Option | Swing Outward / Swing Inward |
Glass Coatings | Low-E, Reflective, Tinted, or Clear (Optional) |
Sealing Gasket | High-performance EPDM gaskets |
Hardware | Heavy-duty folding rollers and multi-point locking systems |
We provide comprehensive OEM/ODM services tailored to your project:
Precision Engineering: Advanced CNC machining ensures every mullion and joint fits perfectly for optimal sealing.
Custom Finishes: Professional powder coating in any RAL color or specialized wood grain finishes to match your decor.
Glass Processing: Options for tempered safety glass, warm-edge spacers, and Argon gas filling for enhanced insulation.
Flexible Configurations: Support for various folding sequences and panel counts to fit specific opening widths.
Track Alignment: Ensure the top and bottom tracks are perfectly level and parallel for smooth folding operation.
Mullion Inspection: Verify the special mullion components are correctly seated between panels to ensure airtightness.
Secure Fixing: Use heavy-duty anchors to secure the frame, accounting for the weight of the 3000mm high panels.
Sealing & Caulking: Apply high-grade silicone sealant to all exterior joints; ensure drainage paths are unobstructed.
Hardware Lubrication: Regularly clean the tracks of debris and apply silicone-based lubricant to rollers and hinges annually.
Operation Check: Test the folding action to ensure panels stack neatly without friction or misalignment.
What makes the TAFD70 mullion design special?
It provides a stronger connection between panels, significantly improving wind resistance and sealing compared to standard folding doors.
Can I get a custom color?
Yes, the frame color is fully customizable via powder coating or anodizing to fit your design.
Is 3000mm the absolute maximum height?
3000mm is our standard maximum for optimal performance, ensuring the panels remain easy to operate and structurally sound.
Is the system energy efficient?
Yes, by using insulated glass and thermal break technology, it effectively reduces heat loss.
Do the folding tracks get stuck easily?
No, our high-quality stainless steel or heavy-duty nylon rollers are designed for smooth, effortless gliding.
Qingdao Honor Building Products Co.,Ltd. is a premier manufacturer specializing in high-performance aluminum window and door systems. We focus on innovative designs like the TAFD70 that solve common industry challenges regarding weather tightness and structural scale. With years of export experience and a commitment to precision manufacturing, we provide tailored building solutions to clients in residential and commercial sectors worldwide.
For custom drawings, technical support, or a free quotation, please contact our sales team:
Email: sales@glass-window.com
Send Messages: https://www.glass-window.com/contact.html
Address: Qingdao, China
Direct supply from factory | OEM & ODM Support | Global Shipping Available
Write A Review
The doors arrived in perfect condition and the quality is even better than i expected. The aluminum frame feels very solid and the sliding is smooth. Packaging was strong and protected everything well.