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AMJ 80T Premium Thermal Break Top-Hung Bi-fold Door

AMJ 80T Premium Thermal Break Top-Hung Bi-fold Door

Product Item:AMJ 80T Premium Thermal Break Top-Hung Bi-fold Doo
Premium large-format bi-fold door for luxury villas, hotels, restaurants, commercial spaces, and tall indoor-outdoor openings.

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

✓ The larger 80T top-hung system supports panels up to 950mm wide and door heights up to 4000mm.

✓ Low-E argon-filled tempered insulated glass and Kerssenberg hardware provide stable folding, insulation, and reliable 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 · 93mm system depth · 83.8mm top-hung track 
· 5mm Low-E + 25A Argon + 5mm tempered glass · 550–950mm W / 1000–4000mm H · 150kg max panel weight
  • Product Detail
  • FAQs

The AMJ 80T Series is a premium thermal break top-hung bi-fold door designed for luxury villas, hotels, restaurants, commercial spaces, and tall indoor-outdoor openings.

Its larger frame and top-hung track support wider and taller panels while maintaining smooth folding operation. Kerssenberg hardware and Low-E argon-filled tempered insulated glass provide stable movement, reliable locking, and improved thermal performance.

Multiple folding layouts and 90° post-free corner configurations can be customized to suit large architectural openings.

Product Advantages
Large-Format Folding System

The system supports panel widths up to 950mm and door heights up to 4000mm for tall openings.

Top-Hung Track Design

The overhead track carries panel loads and supports smooth folding with reduced pressure on the lower track.

150kg Panel Capacity

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

Kerssenberg Hardware

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

25A Low-E Argon Glass

The wider insulated glass cavity supports improved thermal comfort and acoustic performance.

Flexible Folding Layouts

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

Technical Specifications
Product Name AMJ 80T Series Bi-fold Door
Product Item AMJ 80T Premium Thermal Break Top-Hung Bi-fold Door
Profile Thickness 2.0mm
System Depth 93mm
Frame / Track / Sash / Mullion Vertical Frame & Lower Track 62.6mm / Top-Hung Track 83.8mm / Sash 63.2mm / Mullion 44mm
Thermal Break Strip Frame / Sash 14.8mm
Panel Size Range 550–950mm width / 1000–4000mm height
Maximum Panel Weight 150kg per panel
Standard Glass 5mm Low-E + 25A Argon + 5mm Tempered Clear Glass
Optional Glass Insulated glass thickness up to 37mm
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
≥2.0 W/㎡·KU-Value
300PaWater Tightness
1.8m³/(m·h)Air Tightness
≤3000PaWind Pressure Resistance
33dBSound Insulation
Application

Suitable for luxury villas, hotels, restaurants, commercial spaces, event venues, garden rooms, and other large openings requiring taller panels and wide indoor-outdoor connections.



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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