The 60 inch wide accordion doors from DERCHI are thermal break aluminum folding doors engineered for large indoor-outdoor openings. Built with a 14.8mm thermal break strip and lower load-bearing sliding system, these doors suit balcony, courtyard, terrace, and commercial facade applications where both openness and insulation matter.
- 14.8mm thermal break strip for reduced heat transfer
- Lower load-bearing, upper guide sliding system for stable panel operation
- C1–C9 customizable opening configurations for diverse project layouts
- KERSSENBERG branded hardware with hidden hinges and automatic locking
Product Details
The Lucerne.78 series features a 77.3mm frame width with a lower load-bearing, upper guide sliding principle — bottom rollers carry panel weight while upper wheels guide horizontal movement. Hidden hinges with built-in adjustment conceal when panels close, and a correction function addresses post-installation sagging. A reinforced center pillar between panels distributes wind pressure evenly, improving structural integrity compared to lightweight accordion doors that lack thermal break engineering and load-bearing design.
Standard 5+27A+5 double tempered insulating glass paired with the 14.8mm thermal break strip delivers insulation for year-round comfort. Two track options — high track for superior drainage and sealing, or water-blocking low track for easy threshold passage — address different project drainage requirements. The folding design creates wide unobstructed openings for balconies, courtyards, and commercial facades while maintaining weather performance when closed.
Product Features
Thermal Break Insulation: 14.8mm thermal strip reduces heat transfer through the frame, helping projects meet energy efficiency requirements across varied climate zones.
Lower Load-Bearing Sliding: Bottom rollers support panel weight while upper wheels guide movement, ensuring stable and smooth operation even for heavy tempered glass panels.
Hidden Hinge with Adjustment: Hinges conceal when panels close for clean sightlines; built-in adjustment corrects post-installation sagging, reducing service calls on site.
Reinforced Center Pillar: Structural pillar between panels distributes wind pressure evenly, improving integrity for exposed installations facing direct weather conditions.
Customizable Opening Configurations: C1 through C9 options cover single-side fold, double-side fold, and multi-panel combinations to fit diverse architectural layouts and space constraints.
Dual Track Options: High track delivers enhanced drainage and sealing for exposed locations; water-blocking low track provides convenient passage with basic water protection.
Customizable Styles
Glass Configuration: Standard 5+27A+5 double tempered insulating glass; upgradeable to 27A electric blinds for smart building integration and light control.
Frame Size Range: Single panels from 500–800mm wide and 1000–2800mm high; overall width configured by panel count to match project openings.
Color and Finish: Powder coating in sand grey, dark coffee, light coffee, white; stock colors include indigo grey, mint gold, black jade, and wood grain options.
Track Type Selection: Choose high track for enhanced sealing and drainage or water-blocking low track for convenient threshold passage and accessibility.
Edge Banding Profile: Six edge banding styles — New 47, New 70, New 75, European 80, New 100, European 110 — for architectural design coordination.
Hardware Accessories
KERSSENBERG Hidden Hinges: Concealed when door panels are closed, with built-in vertical adjustment to correct alignment and sagging after installation.
Lower Load-Bearing Rollers: Bottom roller system in 3+1 or 2+2 configurations supports panel weight for smooth, stable sliding along the track.
Upper Positioning Wheel: Guides horizontal movement along the top track, keeping panels aligned and preventing lateral drift during folding operation.
KERSSENBERG Aluminum Handle: Available as standard handle and with-lock toggle handle, providing flexible operation and security for different access requirements.
Automatic Lock with Key Cylinder: Panels lock automatically when closed; key lock cylinder adds security for unattended or externally accessible installations.
Basic Parameters
Performance Item | Available Information | Buyer Notes |
|---|---|---|
Thermal Insulation | Class 6 (unit unverified) | Request official U-value test report before using in thermal calculations |
Wind Pressure Resistance | Class 8 / 4.5KPa | Confirm test report and certification body for bidding submission |
Water Tightness | Class 4 / 350Pa | Verify test report availability; high track recommended for exposed sites |
Air Tightness | Class 7 / 1.8m³/(m·h) | Confirm test report and certification body for project compliance |
Sound Insulation | Class 3 / 30dB | Verify if higher acoustic performance is available with alternative glass |
Product Specifications
Parameter | Specification |
|---|---|
Product Name | Lucerne.78 / 78 Series Thermal Break Aluminum Folding Door |
Product Type | Thermal break aluminum folding door |
Material | Thermal break aluminum profile |
Glass Type | 5+27A+5 double tempered insulating glass |
Glass Thickness | 5mm + 27A air space + 5mm |
Frame Width | 77.3mm |
Thermal Strip Width | 14.8mm |
Hardware | KERSSENBERG (hinges, handles, rollers, lock) |
Opening Style | C1–C9 customizable configurations |
Single Panel Width | 500–800mm |
Single Panel Height | 1000–2800mm |
Mullion/Grid | 25×25mm |
Hollow Aluminum Strip | Black PVDF fluorocarbon with DERCHI logo |
Profile Wall Thickness | Confirm with factory per latest production standard |
Customization | Opening style, track type, color, glass, edge banding |
Notes | Overall door dimensions depend on panel count; consult factory for project-specific specifications |
Advantages
Factory-Direct B2B Supply: Manufactured by DERCHI with detailed technical documentation available, supporting project procurement, engineering planning, and bidding compliance.
Large Opening Capability: Folding panel design creates wide unobstructed openings connecting indoor and outdoor spaces for residential and commercial applications.
All-Weather Performance: Thermal break structure with insulating glass provides insulation and weather resistance for year-round comfort in exposed installations.
Project-Flexible Configuration: Multiple opening styles, track types, colors, and edge banding options allow adaptation to diverse architectural and functional requirements.
Branded Hardware System: KERSSENBERG hinges, handles, and rollers with adjustment functions support reliable long-term operation and reduce post-installation service needs.
Application Scenarios
Apartment: Balcony folding door creates an open-air effect when fully retracted, improving natural light and ventilation while maintaining thermal insulation when closed.
Home Office: Serves as a space-dividing partition or terrace access point, balancing privacy for focused work with the option to open for fresh air.
Hotel: Connects lobby lounges, pool areas, or restaurant terraces to outdoor spaces, offering guests seamless indoor-outdoor experiences with weather protection when closed.
Office Building: Provides flexible partitioning for conference rooms or atrium facades, allowing large openings for events while maintaining climate control during daily use.
Outdoor: Suitable for courtyard and terrace enclosures where wind load resistance and water tightness are critical; confirm weather resistance performance for direct exposure conditions.
Residential Building: Balcony and terrace folding doors improve living space openness and natural lighting, with thermal break insulation supporting energy efficiency in multi-unit projects.
Exterior: Functions as a building facade element on garden-facing or pool-facing walls; verify water tightness and wind pressure ratings for your specific exposure conditions.
Villa: Large courtyard or garden folding doors create premium indoor-outdoor living, with customizable colors and edge banding to match architectural design requirements.
FAQ
What are 60 inch wide accordion doors?
Thermal break aluminum folding doors with accordion-style panel operation, featuring 14.8mm thermal strips and insulating glass, designed for large openings in residential and commercial projects.
Where can these folding doors be used?
Suitable for balconies, courtyards, terraces, pool areas, restaurants, cafes, offices, and villas — any space requiring large openings with weather protection when closed.
Can the opening configuration and size be customized?
Yes, C1 through C9 opening styles are available; single panels range 500–800mm wide and 1000–2800mm high, with overall width determined by panel count and configuration.
What information is needed for a quote?
Provide overall opening dimensions, desired panel count and folding direction, track type preference, glass configuration, color selection, and project location for accurate pricing.
Do you support B2B project orders?
Yes, DERCHI supplies folding doors for commercial and residential projects with detailed technical specifications, performance data, and customization options for bidding compliance.
Are technical documents available for engineering planning?
Detailed product technical manuals and brochures with profile specifications, hardware details, and performance data are available upon request for project planning and documentation.
What should be confirmed before placing an order?
Confirm overall dimensions, panel configuration, track type, glass type, color, edge banding style, and whether performance test reports are required for your project's compliance documentation.
What about certifications, packaging, and shipping?
Certification availability varies by market; confirm requirements with the factory. Packaging uses protective materials for transit safety; shipping terms and lead times depend on order volume and destination.
