
Product Specifications
The outer frame occupies the wall thickness 73mm,
the thickness of glass door sash is 65mm
Height of Door Sash
1000mm-3200mm;Maximum bearing
Capacity
100kg
Profile Thickness
Frame:16.mm;door sash:2.0mm
Standard Glass
5mm+24A+5mm,
double tempered insulating glass
Width of Even Door Sash:500mm-900mm
Width Singular Door Sash:500mm-900mm
Basic Parameters
Heat resistance performance:
Level 7(2.0 ≥ K ≥ 1.6)
Watertight performance:
Level 3(250 ≤ Pa < 350)
Airtight performance:
Level 4(2.5 ≥ q1 ≥ 2.0)
Soundproofing performance:
Level 3(30 ≤ Rw+Ctr <35)
Wind performance:
Level 3(2.0 < P3 < 2.5)

This type of 70 series aluminum profile has different feature from unequal casement door. It’s trackless design with thermal break material.Therefore, it improves convenient across to in or out.

A hardware handle is a component used for opening, closing and securing casement doors. It can be made of various materials, types, colors and finishes to match the overall design.

Integrate your casement doors with other types, allowing for more window and door combinations. You can customize the decor of your multiple usage scenarios according to your needs. Anyway, you can obtain more info from Zhonglian.


Our standard glass is double-layer transparent tempered glass. However, we also offer a variety of glass options to meet unique project requirements. Including single-layer glass, triple-layer glass, low-e glass, tempered glass, and laminated glass.


The grille patterns of casement door adds exquisite to your door appearance, balancing safety and aesthetics. Zhonglian can customize pattern grilles to right fit for you.

We offer various built-in blinds options for you to choose from and install, such as manual blinds, magnetic controlled blinds and electrical blinds.
Get Product Catalog
If you want to get more details about our casement window collection, including types, colors, sizes, hardware and so forth. Please contact us.
Zhonglian 73-65 Series Aluminum Heavy Duty Folding Door
Combine with smart home
Sustainable and serviceable product
Novel design for modern places
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Specification Details
- Door Edge Design
- Hinge
- Grilles
- Glass Structure
- Lock Body
- Hanging Track Design
1. Door Edge Design
- It refers to the decorative or structural elements added around a door’s edges.
- Improve the stability and functionality of the door.
2. Hinge
- Security and seamless integration into the casement door frame.
- Ease maintenance, ensuring a reliable and long-lasting mechanism for opening and closing doors.
3. Grilles
- The 70 series thermal break are usually square or rhombic (27A hollow).
- Grilles can be customized to match different styles, boosting both interior and exterior aesthetics of buildings.
4. Glass Structure
- Standard configuration 5mm+19A+5mm double-layer tempered insulating glass.
- When enlarging the notch, it can make up to 5mm+27A+5mm double tempered insulating glass at maximum.
5. Lock Body
- The central component of a lock mechanism.
- It houses the internal mechanism that control the locking and unlocking of the casement door, ensuring safety and controlled access.
6. Hanging Track Design
- There is no track installed at the bottom of the casement door.
- The design enhances the aesthetics of the doors, keeps the floor cleaner, and allows for easier cleaning and use.
Product Certification
Our products have obtained multiple international certifications, including Energy Star, CE certification, SGS certification, ISO certification, AAMA, IAS as well as the highest standard certifications from the United States and Australia.

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