The 93 series thermal break folding door runs on an upper-hang lower-slide system, opening wide for commercial and residential projects. These soundproof folding doors pair 14.8mm thermal strips with 27A hollow glass to handle temperature and noise control.
- Upper-hang lower-slide structure for smooth operation
- 14.8mm thermal break strips paired with 27A hollow glass
- Hidden hinges with balance bearings to reduce panel sag
- Complete FQ-170 profile system for accurate B2B cost estimation
Product Details
Weight in this upper-hang lower-slide setup is carried by the top track, leaving the bottom rail to guide movement rather than bear the full load. Between panels, a reinforced center mullion concentrates force at the center point, which improves wind pressure distribution. Specifying even-number panels is recommended—this configuration significantly cuts the risk of long-term door sag.
Standard folding systems often suffer from installation sag over time. This door tackles that with fully hidden adjustable hinges that include balance bearings. For the threshold, specifiers can choose between a high-track or a water-blocking low-track, matching drainage and clearance requirements to the actual installation environment.
Product Features
Upper-Hang Lower-Slide Mechanism: Panel weight hangs from the top track so the bottom rail only guides movement, not the load.
Reinforced Center Mullion: A structural post between panels pushes wind pressure toward the center, adding stability.
Hidden Adjustable Hinges: Hardware disappears when closed; built-in adjustment and balance bearings fight operational sag.
14.8mm Thermal Break with 27A Glass: Wide polyamide strips and a 27mm air gap work together to slow heat transfer.
Dual Track Options: High-track or water-blocking low-track profiles let installers match specific drainage and threshold conditions.
Even-Panel Structural Logic: Even-number panel setups mechanically reduce the stress concentration that causes doors to drop over time.
Customizable Styles
Glass Configuration: Standard 5+27A+5 hollow glass, with an option to upgrade to integrated 27A electric blinds.
Track System: Select between high-track or water-blocking low-track profiles based on project drainage needs.
Panel Dimensions: Customize widths from 500-850mm and heights from 1000-3800mm to fit specific openings.
Bottom Panel Guard: An optional bottom protector can be specified for high-traffic commercial installations.
Grid Styling: Add 25×25 grid bars between glass panes to achieve traditional or residential visual requirements.
Hardware Accessories
Hidden Hinges: Adjustment screws and balance bearings correct alignment and keep folding action smooth.
Keyed Lock Cylinder: Standard locking hardware for secure access control in residential and commercial units.
Reinforced Center Mullion: Structural intermediate post connecting panels, improving wind load distribution and rigidity.
Upper Track (2.5mm): Thick 2.5mm wall upper rail gives stable suspension and rolling support for the door panels.
Lower Track Options: Available in high or water-blocking low profiles, guiding the bottom edge while managing drainage.
Basic Parameters
Performance Item | Available Information | Buyer Notes |
|---|---|---|
Thermal Insulation | 14.8mm thermal strip + 27A hollow glass | Request official U-value test reports for project compliance. |
Wind Pressure Resistance | Reinforced center mullion design | Verify specific wind load ratings with manufacturer for your region. |
Water Tightness | High-track or water-blocking low-track options | Select track type based on project exposure and drainage needs. |
Air Tightness | Thermal break structure with precision profiles | Confirm air leakage test data with supplier for energy codes. |
Sound Insulation | 5+27A+5 / 5G+27A+5G hollow glass configuration | Acoustic data unavailable; request third-party sound test reports before ordering. |
Product Specifications
Parameter | Detail |
|---|---|
Product Name | 93 Series Thermal Break Folding Door |
Product Type | Upper-hang lower-slide folding door |
Profile Series | FQ-170 |
Main Profile Wall Thickness | 2.0mm |
Upper Track Wall Thickness | 2.5mm |
Thermal Strip Width | 14.8mm |
Hollow Layer | 27A |
Standard Glass | 5+27A+5 / 5G+27A+5G |
Panel Width Range | 500-850mm (confirm if single panel) |
Panel Height Range | 1000-3800mm (confirm if single panel) |
Grid Bar Model | 25×25 |
Hollow Aluminum Spacer | Black fluorocarbon with logo |
Opening Style | Folding / Accordion |
Customization | Track type, electric blinds, bottom guard available upon request |
Notes | Fixed top glass is not supported; even panel counts recommended |
Advantages
Sag-Resistant Engineering: Even-panel logic and balance bearings work together to minimize long-term door drop.
Clean Aesthetics: Hinges stay fully concealed when the door is closed, presenting a sleek, uninterrupted surface.
Project-Ready Profiles: Complete FQ-170 series with theoretical weights allows precise material and cost estimation.
Versatile Drainage: High and low track options adapt to varied installation environments and weather exposure.
Structural Stability: Reinforced center mullion concentrates force distribution, improving wind resistance capability.
Application Scenarios
Apartment: Opens living areas fully to balconies, drawing in natural light while the thermal break maintains indoor comfort.
Home Office: Separates workspace acoustically and thermally from the rest of the home without sacrificing floor space.
Hotel: Partitions balcony and room areas with a clean hidden-hinge look, allowing flexible spatial arrangements for guests.
Office Building: Encloses high-rise conference rooms with wind-resistant panels, managing climate control effectively.
Outdoor: Faces exterior conditions using water-blocking low tracks; buyers must confirm weather resistance for specific climates.
Residential Building: Delivers reliable daily operation through sag-resistant engineering and secure keyed locking mechanisms.
Exterior: Withstands diverse weather via 2.0mm thick profiles; verify water tightness and surface finish for local exposure.
Villa: Frames expansive garden views with smooth folding action and premium glass configurations for a striking facade.
FAQ
What are soundproof folding doors?
They are thermal break folding doors equipped with 27A hollow glass intended to reduce noise transfer while providing wide, unobstructed openings.
Where can soundproof folding doors be used?
They fit apartments, villas, hotels, and offices requiring exterior or interior wide openings with thermal control and acoustic separation.
Can these folding doors be customized?
Yes, panel dimensions, track types, glass options, and electric blinds can be tailored to meet specific project requirements.
What information is needed for a quote?
Provide project dimensions, desired panel count, track type preference, glass configuration, and total quantity for accurate pricing.
Are they suitable for B2B projects?
Yes, complete profile data and theoretical weights are supplied for cost estimation, supporting contractors, developers, and architects.
Are technical documents available?
Profile specifications and assembly schemes are available; request the latest version from the technical department to ensure currency.
What should buyers confirm before ordering?
Confirm whether dimensions refer to single panels or total assemblies, track style, even-panel preference, and that fixed top glass is not required.
How should buyers confirm certification and compliance details?
Compliance varies by configuration; request specific acoustic, wind, and safety test reports. Confirm packaging and shipping details with sales.
