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AMJ 68T Thermal Break Top-Hung Bi-fold Door

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AMJ 68T Thermal Break Top-Hung Bi-fold Door
  1. AMJ 68T Thermal Break Top-Hung Bi-fold Door
  2. AMJ 68T Thermal Break Top-Hung Bi-fold Door
  3. AMJ 68T Thermal Break Top-Hung Bi-fold Door
  4. AMJ 68T Thermal Break Top-Hung Bi-fold Door
  5. AMJ 68T Thermal Break Top-Hung Bi-fold Door
  6. AMJ 68T Thermal Break Top-Hung Bi-fold Door
  7. AMJ 68T Thermal Break Top-Hung Bi-fold Door
  8. AMJ 68T Thermal Break Top-Hung Bi-fold Door

AMJ 68T Thermal Break Top-Hung Bi-fold Door

Product Item：AMJ 68T Thermal Break Top-Hung Bi-fold Door 
Thermal break top-hung bi-fold door for patios, villas, restaurants, cafés, showrooms, and indoor-outdoor living spaces.

✓ Custom sizes, colors, glass, hardware, folding layouts, corner configurations, and installation methods are available.

✓ The top-hung system reduces floor-track load and supports smooth folding operation with individual panels up to 150kg.

✓ Low-E argon-filled tempered insulated glass and Kerssenberg hardware provide stable operation, insulation, and secure locking.

✓ Available in 440, 422, 431, 330, and 321 folding layouts, plus 90° post-free corner configurations.

✓ AMJ has 12+ years of industry experience, 10,000+ completed projects, 200,000㎡ annual output, 
and a 240+ member R&D, sales, and production team.

✓ Standard lead time can be as fast as 25 days, with a 7-year warranty and upgrade options from 10 to 20 years.

Key Specs: 2.0mm profile · 77.3mm system depth · 68mm top-hung track
 · 5mm Low-E + 22A Argon + 5mm tempered glass · 550–850mm W / 1000–3000mm H · 150kg max panel weight
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The AMJ 68T Series is a thermal break top-hung bi-fold door designed for patios, villas, restaurants, cafés, showrooms, and indoor-outdoor living spaces.

Its top-hung support system reduces load on the bottom track and allows the panels to fold smoothly to one or both sides. Kerssenberg hardware and Low-E argon-filled tempered insulated glass provide stable operation, secure locking, and practical thermal performance.

Multiple folding layouts and 90° post-free corner configurations can be customized according to opening size and project design.

Product Advantages
Top-Hung Folding System

The overhead track carries the panel load, reducing pressure on the bottom track and supporting smooth folding.

Wide Opening Connection

Multiple panels fold compactly to connect indoor and outdoor spaces with a broad clear opening.

150kg Panel Capacity

Each panel supports up to 150kg for stable operation in large residential and commercial openings.

Kerssenberg Hardware

Kerssenberg hardware supports reliable folding, alignment, locking, and long-term daily use.

Flexible Folding Layouts

Available in 440, 422, 431, 330, 321, and 90° post-free corner configurations.

Optional Bottom Roller

The standard top-hung system can be supplemented with a stainless steel bottom roller when required.

Technical Specifications
Product Name AMJ 68T Series Bi-fold Door
Product Item AMJ 68T Thermal Break Top-Hung Bi-fold Door
Profile Thickness 2.0mm
System Depth 77.3mm
Frame / Track / Sash / Mullion Vertical Frame & Lower Track 54mm / Top-Hung Track 68mm / Sash 57.5mm / Mullion 42.8mm
Thermal Break Strip Frame / Sash 14.8mm
Panel Size Range 550–850mm width / 1000–3000mm height
Maximum Panel Weight 150kg per panel
Standard Glass 5mm Low-E + 22A Argon + 5mm Tempered Clear Glass
Optional Glass Insulated glass thickness up to 35mm
Standard Hardware Kerssenberg Hardware, Black / Silver
Support System Standard Top-Hung Roller System / Optional Stainless Steel Bottom Roller
Installation Options Nail Fin / Installation Brackets / Screw Installation
Available Designs 440 / 422 / 431 / 330 / 321 Folding Layouts / 90° Post-Free Corner
Product Performance
≥2.2 W/㎡·KU-Value
300PaWater Tightness
1.8m³/(m·h)Air Tightness
≤3000PaWind Pressure Resistance
33dBSound Insulation
Application

Suitable for patios, villas, restaurants, cafés, showrooms, garden rooms, entertainment areas, and other projects that need a wide indoor-outdoor opening.



Here are the key questions project buyers, contractors, developers and distributors usually ask before working with AMJ.

Are you a factory?
Yes. AMJ is a factory-based aluminum window and door manufacturer in Guangdong, China, with our own production plant, technical team, equipment, QC process, and export packaging system.
What should I send for a quotation?
Please send project drawings, window and door schedule, sizes, quantities, glass requirements, frame color, hardware options, project location, and expected delivery time.
Can you customize products according to project drawings?
Yes. We can customize sizes, opening styles, glass, colors, hardware, and system solutions according to your drawings and project requirements.
Are your products suitable for export projects?
Yes. We provide aluminum window and door solutions for residential, commercial, and custom projects, and can match suitable configurations according to different market requirements.
Do you have certifications or test reports?
Yes. AMJ has NFRC, CSA and ISO management system certifications, and experience with AS2047 / AGWA requirements for the Australian market. Project-specific testing can also be arranged if needed.
What types of aluminum windows and doors do you offer?
We offer casement, sliding, awning, double hung, tilt-turn windows, as well as sliding, casement, bi-fold, pivot and other aluminum door systems.
How do you control quality before shipment?
Before shipment, we check profiles, glass, hardware, dimensions, surface finish, opening operation, sealing, assembly quality, and packaging. Photo/video inspection or third-party inspection is also available.
How do you package products for export?
We use reinforced export packaging, protective film, corner protection, foam, crates or steel frames, and clear job-site labels to reduce damage and support easier installation.
What is your normal production lead time?
Normally, production takes around 25–35 days after drawings, specifications, payment terms, and production details are confirmed. The exact lead time depends on order quantity, product system, glass, color, and hardware configuration.
What warranty and after-sales support do you provide?
AMJ provides up to 10 years product warranty depending on the product system, glass, hardware, and project conditions. We also provide installation guides, installation videos, technical support, spare parts support, and project follow-up service.
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