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Custom Bifold Doors (63mm Profile, Without Mullion)

The 63mm Folding Glass Door features a stronger aluminum profile that enhances durability and wind resistance while maintaining a sleek, modern style. Without a middle mullion, it delivers a wide, unobstructed view and effortless folding movement. Engineered for both residential and commercial applications, this folding glass door system combines strength, beauty, and performance — an ideal choice for villas, hotels, and office entrances.

 

Key Features

Seamless, Frameless Design

No vertical mullion between panels, creating a wider and more open visual experience.

Flexible Folding Structure

One system can realize both inward and outward opening functions, making operation smooth and convenient.

Beautiful and Functional

Combines elegant design with reliable sealing and structural stability.

Wide Adaptability

Suitable for various architectural environments and flexible opening configurations.

Enhanced Weatherproofing

Equipped with durable EPDM sealing strips to improve air and water tightness.

 

Specifications

Material: 6063-T5 High-Strength Aluminum Alloy

Surface Treatment: Electrophoresis, Powder Coating, or Anodized Finish

Hardware: High-quality domestic or imported dual-link folding system

Glass Options: Single glazing or double glazing (insulated glass unit)

Sealing: Multi-layer EPDM weather strip system

 

Performance Ratings

Maximum Thermal Insulation: Level 6

Maximum Sound Insulation: Level 6

Maximum Wind Resistance: Level 9

Air Tightness: Level 7

 

Applications

Ideal for villas, balconies, patios, restaurants, offices, and commercial storefronts—anywhere that requires a large, openable door system for better lighting and ventilation.

Model Code

Thickness(Tmm)

Theoretical Weight(kg/m)

Screenshot Model Code

Thickness(Tmm)

Theoretical Weight(kg/m)

Screenshot Model Code

Thickness(Tmm)

Theoretical Weight(kg/m)

Screenshot

QC5501

Upper Slide

T=1.8      1.884kg/m

QC5501A

Upper Slide

T=1.8      1.788kg/m

QC4506

Door Sash

T=1.5

QC5505

Frame

T=1.3      0.715kg/m

QC4503

Edge Mullion

T=1.5

QC5509

Glass Bead (19mm)

T=0.8      0.092kg/m

QC4508

Glass Bead (8mm)

T=0.7      0.099kg/m

QC056D

Glass Bead (24mm)

T=1.0      0.063kg/m

QC5504

Lower Slide with Edge Stop

T=1.6      0.771kg/m

QC5503

Pre-embedded Bottom Track

T=1.8      0.407kg/m

QC5502

Flat Bottom Slide

T=1.8      0.629kg/m

Why Choose Our Folding Door Systems

As a professional aluminum doors and windows manufacturer, we offer full customization options for size, color, glass type, and opening direction. Our folding doors are crafted with precision, tested for durability, and available at factory-direct prices with OEM/ODM support and global shipping.

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