Product Overview
Ultra slim aluminium bifold doors are a further development of slim frame bifold doors: the visible profile face is reduced further, and the glass proportion is increased to the maximum. When closed, the door leaves mainly glass with a very narrow frame line.
These doors are used in high-end residential living room exterior doors, villa landscape large openings, commercial transparent partitions, and hotel landscape balconies.
Core Advantages
High-strength profile for narrow visible face:
The door uses high-strength 6063-T5 aluminium profiles with wall thickness optimized according to sash size. In ultra-narrow frame construction, the profile strength is matched to the sash dimensions to maintain structural stability.
Heavy-duty folding hardware for narrow frames:
Folding-specific heavy-duty hinges and a linkage transmission system are used. In multi-panel ultra-narrow doors, the hardware compensates for the reduced frame material available for hinge mounting.
Glass upgrade options for landscape openings:
Standard glass is 5 mm + 12A + 5 mm tempered insulated, with LOW-E coating or triple glazing available as an upgrade. In villa landscape openings, this allows thermal performance to be adjusted without changing the frame line.
Sealing maintained in narrow construction:
EPDM sealing strips are used with the folding system. In commercial transparent partitions and hotel landscape balconies, the sealing line is kept continuous across the narrow frame.
Applications
• High-end residential living room exterior doors
• Villa landscape large openings
• Commercial transparent partitions
• Hotel landscape balconies
Specifications
|
Item |
Standard Configuration |
|
Profile material |
6063-T5 aluminium (high-strength) |
|
Glass configuration |
5 mm + 12A + 5 mm tempered insulated (LOW-E / triple glazing available) |
|
Surface treatment |
Electrostatic powder coating / fluorocarbon powder coating |
|
Hardware |
Folding-specific heavy-duty hinges, linkage transmission handle |
|
Sealing strip |
EPDM |
|
Opening type |
Multi-panel folding |
OEM/ODM
Ultra slim aluminium bifold doors support custom ultra-narrow frame solutions to drawings. Profile supplier resources cover mainstream domestic suppliers, and the profile matching solution can be adjusted according to project standards. Colors and models can be mixed.
■ Customizable Items
Visible profile face width (subject to structural verification)
Sash dimensions
Glass configuration: LOW-E, triple glazing
Surface treatment and color
Hardware configuration
Mixed colors and models within one order
Quality Control
- Profile wall thickness and straightness are checked on incoming material. Hinge mounting points are inspected before assembly to confirm the narrow frame can accept the hardware load.
- After assembly, the full folding sequence is tested for synchronization and structural stability. A 100% inspection is performed before shipment. Third-party inspection is supported.
FAQ
Q: How narrow can the frame of ultra slim aluminium bifold doors be?
A: The specific visible face width is determined by the profile matching solution. The engineering team provides the narrowest solution after verifying sash dimensions and load requirements.
Q: How durable is the folding hardware on ultra-narrow doors?
A: High-strength aluminium profiles are used with folding-specific heavy-duty hinges. The hardware is selected to maintain structural stability and sliding smoothness under ultra-narrow design.
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