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Product Details
Load transfers primarily to the reinforced 2.5mm upper track, keeping the lower track clear of heavy friction. The 14.8mm thermal break strip and 27A hollow glass work together to limit heat transfer across the frame. Hidden adjustable hinges with integrated balance bearings carry heavy panels without visible hardware disrupting the facade.
A strengthening center mullion sits between sashes, distributing operational and environmental force to a central point. This limits the tendency for large panels to sag over time. Two structural guidelines shape the specification: use even sash counts for balance, and avoid upper fixed glass (not supported by this system). Following these prevents specification errors and keeps the installation structurally sound.
Product Features
Top-Hung Bottom-Slide Structure: Weight sits on the upper track, so panels move smoothly and the lower track wears less over time.
14.8mm Thermal Break Strip: A wide thermal barrier that helps projects meet energy efficiency requirements across different climates.
Hidden Adjustable Hinges: Hardware disappears when closed for clean sightlines; field adjustments keep panels aligned after installation.
Strengthening Center Mullion: Shares wind and operational loads across the door center, reducing long-term panel sagging.
High and Low Track Options: Water-blocking low track for drainage-focused areas; high track where threshold clearance matters more.
27A Hollow Glass Configuration: The wide air spacer adds thermal buffering and acoustic dampening for interior comfort.
Customizable Styles
Glass Configuration: Standard 5+27A+5 insulating glass; upgrade path to 27A electric blinds between panes.
Track Type Selection: High track or water-blocking low track, depending on site drainage and threshold needs.
Sash Layout Planning: Even sash counts recommended to maintain structural balance and avoid sagging.
Grid Bar Options: 25x25 grid bars available to match architectural styling.
Project-Specific Dimensions: Sash widths 500–850mm, heights 1000–3800mm, tailored to project drawings.
Hardware Accessories
Hidden Adjustable Hinges: Concealed when closed; self-adjustable to keep panels in alignment through seasonal movement.
Balance Bearings: Built into the hinge system so heavy glass panels slide without sticking.
Key Lock Cylinder: Standard locking included; confirm hardware brand preferences with the manufacturer before ordering.
Strengthening Center Mullion: Structural reinforcement between sashes that resists wind pressure and limits sagging.
Sash Bottom Guard Plate: Optional add-on for extra protection at the bottom edge of the door sash.
Basic Parameters
Performance Item | Available Information | Buyer Notes |
|---|---|---|
Thermal Insulation | 14.8mm thermal break strip + 27A hollow glass | No specific U-value provided; request test reports for certified performance. |
Wind Pressure Resistance | Improved by strengthening center mullion | No specific wind load rating; confirm if hurricane resistance is required. |
Water Tightness | Water-blocking low track option available | Select appropriate track based on project rainfall conditions. |
Air Tightness | Confirm with manufacturer process sheet | Verify sealing performance grade for specific project requirements. |
Sound Insulation | 5+27A+5 insulating glass structure | No specific STC rating; request test data if acoustic compliance is needed. |
Product Specifications
Parameter | Detail |
|---|---|
Standard Glass | 5+27A+5 / 5G+27A+5G |
Hollow Layer | 27A |
Thermal Break Strip Width | 14.8mm |
Main Profile Wall Thickness | 2.0mm |
Upper Track Wall Thickness | 2.5mm |
Max Sash Width | 850mm |
Max Sash Height | 3800mm |
Min Sash Width | 500mm |
Min Sash Height | 1000mm |
High Track Dimensions | W93mm x H~48/63mm |
Low Track Dimensions | W93mm x H~18/33mm |
Note | Dimensions refer to single sash; verify overall door dimensions with manufacturer. |
Advantages
Anti-Sagging Engineering: Center mullion and balance bearings share the load, lowering the risk of long-term panel sagging.
Clean Visual Aesthetics: Hidden hinges disappear when closed, leaving uninterrupted glass sightlines.
Precise BOM Estimation: Profile weights and model numbers let contractors calculate material costs accurately.
Installation Versatility: High and low track options adapt to different threshold clearances and water management needs.
Upgradable Configurations: Optional electric blinds and bottom guard plates allow specifiers to target premium project tiers.
Application Scenarios
Apartment: Wide openings connect living areas to balconies; the thermal break strip limits energy loss through the frame.
Home Office: Folding panels close off workspace from living areas, while 27A hollow glass dampens outside noise.
Hotel: Large panels open lobbies or restaurants to terraces; hidden hinges keep the refined look hospitality interiors demand.
Office Building: Conference room dividers benefit from the top-hung structure—minimal floor tracking, unobstructed foot traffic.
Outdoor: Covered patio enclosures can use the water-blocking low track; confirm weather resistance and surface finish for exposure conditions.
Residential Building: Shared corridors or communal spaces rely on the even-sash configuration for stability across frequent daily operation.
Exterior: Full-width openings face the elements; the center mullion adds reinforcement, but verify wind pressure ratings and installation conditions locally.
Villa: Expansive courtyard or garden access points use the 3800mm maximum sash height for floor-to-ceiling visual connections.
FAQ
What is this product?
A 93 series thermal break folding door with top-hung and bottom-slide structure, 14.8mm thermal break strip, and 27A hollow glass for large openings.
Where can it be used?
Large openings in patios, exterior facades, and commercial spaces. Verify overall door dimensions and local wind load requirements for your site.
Can it be customized?
Track type, glass configuration, sash layout, and optional electric blinds can all be tailored. Confirm surface finish and color options during quotation.
What information is needed for a quote?
Overall opening dimensions, desired sash count, glass type, track preference, and project location. This ensures accurate cost estimation and correct profile selection.
Can it be used for B2B projects?
Yes. Profile weights and model numbers support accurate BOM creation. Volume inquiries and project-specific requirements can be discussed directly with the manufacturer.
Are technical documents available?
Profile specifications, theoretical weights, and assembly schemes are available on request. If you need certified performance test reports, specify requirements early.
What should buyers confirm before ordering?
Sash count must be even—upper fixed glass is not supported. Also verify track type, local wind requirements, and glass safety specs before finalizing.
How should buyers confirm certification, packaging, or shipping details?
Request specific test reports and confirm compliance with target market regulations directly with the manufacturer. Packaging and shipping terms are determined per order.
