This hinged casement window is a DERCHI custom-made thermal-break aluminum system window, built to project-specific dimensions rather than stocked as a standard catalog item. Three series — S9 Starlight, R8Y Ruixuan, and E5N Langyue — cover outward, coastal, and inward-opening applications respectively.
- Made-to-size manufacturing with multi-cavity thermal-break aluminum profiles
- Three series covering residential, coastal/typhoon, and interior ventilation scenarios
- Configurable glass, hardware, color finishes, and sash division combinations
Product Details
The S9 Starlight System uses a 109mm frame with 1.8mm wall thickness and a 44/24/15mm multi-thermal-strip configuration, paired with 5+27A+5 fluorocarbon insulating glass. Its glass sash opens outward while the screen sash opens inward, giving occupants ventilation control without exterior obstruction. The R8Y Ruixuan System widens the frame to 118mm and adds equal-pressure drainage with concealed exits, making it suitable for coastal and typhoon-exposed projects where wind-driven rain is a recurring concern.
The E5N Langyue System takes a different approach with an 85mm frame, 2.0mm wall, and inward or inward-tilt opening — a configuration that fits narrow tall openings, bathrooms, and high-rise units where exterior cleaning access is limited. All three series share a three-seal structure, EPDM water-swelling seals, and multi-cavity aluminum profiles, but their performance values and hardware differ by configuration. Buyers evaluating a custom hinged casement window should confirm which series matches their project's wind load, drainage, and opening-direction requirements before finalizing drawings.
Product Features
Thermal-Break Multi-Cavity Profile: The 1.8mm–2.0mm aluminum profiles incorporate extra-wide insulation strips — up to 44mm on the S9 — reducing heat transfer between interior and exterior surfaces for energy-conscious projects.
Three-Seal Weather Barrier: A three-seal structure combined with EPDM water-swelling seals manages rain intrusion and air leakage, supporting water tightness ratings of 700Pa Class 6 on S9 and R8Y configurations.
Acoustic Insulation: Double tempered glass with a 27mm air gap contributes to 35dB sound insulation on S9 and R8Y, helping reduce traffic and mechanical noise in urban or mixed-use developments.
Wind Pressure Capacity: S9 and R8Y carry 5kPa Class 9 wind pressure resistance, while R8Y adds fall-prevention ropes and protection corners for buildings exposed to severe typhoon conditions.
Child-Safe Hardware: DERCHI custom handles, anti-pull angled transmission boxes, anti-pry lock keepers, and optional guardrails address household safety concerns without requiring separate aftermarket additions to the window assembly.
Dual-Direction Opening: On the S9, the glass sash opens outward while the screen sash opens inward, allowing ventilation and insect screening from inside — useful for upper-floor units where exterior access is restricted.
Customizable Styles
Glass Configuration: Options include argon-filled, Low-E, laminated, frosted, tinted, ultra-clear, and blinds-integrated glass beyond the standard 5+27A+5 double tempered unit.
Frame and Profile: Three thermal-break aluminum series — S9 (109mm), R8Y (118mm), and E5N (85mm) — address different wall depths, opening directions, and structural load requirements.
Size Range: S9 casement sash spans width 400–750mm and height 400–1500mm; outward top-hung spans width 510–750mm and height 700–1500mm. Confirm overall window limits with drawings.
Color and Finish: Twelve-plus finishes include Sand Gray, Dark Coffee, Black Crystal, Starry Black, wood grain, fluorocarbon flash silver, and Indigo Gray through powder coating or fluorocarbon processes.
Opening and Sash Layout: Single sash, double sash, fixed-plus-opening, three-segment, top transom, multi-grid curtain wall, pitched/trapezoidal, and hexagonal/bay combinations are available for project-specific fenestration.
Hardware Accessories
Handles: S9 uses DERCHI custom child-safe handles; R8Y uses WEHAG baseless handles. Optional fingerprint, password, and key handles are available for access-controlled applications.
Hinges: Outward casement configurations use 13-inch (S9) or 12-inch (R8Y) friction hinges; inward-tilt configurations use E5N/E6N concealed hinges for cleaner interior sightlines.
Locking System: S9 features two-point locks with roller-sleeve lock points and anti-pry keepers; R8Y uses a custom black zinc alloy four-face six-point lock for multi-directional security.
Sealing Hardware: EPDM water-swelling seals expand on contact with moisture, reinforcing the three-seal drainage path during heavy rain and wind-driven water exposure.
Safety Accessories: Optional 48-mesh high-transparency screens, stainless steel wire mesh, guardrails, fall-prevention ropes, and protection corners can be integrated based on project safety requirements.
Basic Parameters
Performance Item | Available Information | Buyer Notes |
|---|---|---|
Thermal Insulation | S9/R8Y: 2.0W Class 6; E5N: 1.8W (varies by configuration) | Confirm whether value is Uf or Uw and request test standard documentation. |
Wind Pressure Resistance | S9/R8Y: 5kPa Class 9; E5N: approximately 5kPa | Confirm exact E5N rating and applicable regional test standard. |
Water Tightness | S9/R8Y: 700Pa Class 6; E5N: 550–700Pa | E5N value varies with or without screen; confirm specific configuration performance before ordering. |
Air Tightness | S9/R8Y: 1.2 Class 8; E5N: 1.2 | Confirm E5N class rating and test standard for the selected configuration. |
Sound Insulation | S9/R8Y: 35dB Class 4; E5N: 35dB | Confirm test standard (e.g., ISO 717-1) and glass configuration used for testing. |
Product Specifications
Specification | Details |
|---|---|
Product Name | DERCHI Thermal-Break Aluminum System Window |
Product Type | Custom-made hinged casement window (S9 / R8Y / E5N series) |
Material | Thermal-break aluminum, multi-cavity profile (1.8–2.0mm wall) |
Glass Type | 5+27A+5 double tempered insulating glass with fluorocarbon aluminum spacer |
Glass Thickness | Standard 5+27A+5; additional thickness options available upon request |
Frame Option | S9: 109mm; R8Y: 118mm; E5N: 85mm frame width |
Hardware | DERCHI custom / WEHAG handles, friction or concealed hinges, multi-point locks |
Opening Style | Outward casement, top-hung, inward casement, inward-tilt |
Size Range | S9 casement: W 400–750mm, H 400–1500mm; top-hung: W 510–750mm, H 700–1500mm |
Max Single Fixed Glass | 6 square meters (S9) |
Application | Residential, coastal, high-rise, commercial fenestration projects |
Customization | Custom sizes, colors, glass, hardware, sash division, and structure combinations |
Certifications | CE / NFRC / CSA; US/AU IGCC glass certification |
Notes | Maximum overall window size limits beyond single sash to be confirmed with project drawings |
Advantages
Made-to-Size Manufacturing: Each window is produced to project-specific dimensions and sash divisions, not pulled from a standard stock catalog — supporting architects and contractors with non-standard openings.
Multi-Series Project Coverage: S9, R8Y, and E5N series address residential, coastal/typhoon, and interior ventilation scenarios within a single supplier relationship, reducing cross-vendor coordination.
Export-Grade Packaging: Four-layer protection — anti-scratch film, pearl cotton, waterproof outer film, and fully enclosed wooden frame — plus PE anti-seawater film and air bag isolation for ocean freight.
Delivery Options: Door-to-door service or shipping to port is available. Platform reference indicates approximately 25–35 days, though actual lead time may vary by order volume and configuration.
Platform Reference Pricing: Alibaba-listed reference ranges from approximately 79–129 USD/sqm depending on series and configuration. Treat these as inquiry baselines, not fixed transaction prices.
Application Scenarios
Apartment: The E5N inward-tilt configuration suits apartment units where exterior opening is restricted by building codes or balcony proximity. Controllable ventilation and interior screen access address everyday living comfort.
Home Office: S9's 35dB sound insulation helps reduce street and neighborhood noise in home office spaces. The outward-opening sash maximizes floor area while maintaining airflow during working hours.
Hotel: Hotels benefit from the S9's dual-direction opening — glass sash outward, screen inward — which simplifies housekeeping and insect control while preserving guest room floor space and view clarity.
Office Building: A commercial hinged casement window in multi-grid curtain wall combinations can divide large façade openings into operable and fixed sections, balancing daylighting with controlled natural ventilation.
Outdoor: For outdoor-exposed installations, buyers should confirm water tightness, wind pressure class, and surface finish durability against UV and salt exposure. R8Y's equal-pressure drainage and concealed exits suit weather-exposed positions.
Residential Building: New construction projects can specify S9 for standard residential openings with three-seal weatherproofing and thermal-break profiles. Fixed-plus-opening combinations handle wider openings while keeping operable sash sizes within tested ranges.
Exterior: Exterior-facing units in coastal or high-wind zones should verify wind pressure resistance and surface treatment compatibility. R8Y with fall-prevention ropes and protection corners addresses typhoon-region safety requirements.
Villa: Villas with pitched, trapezoidal, or hexagonal/bay window shapes can use custom structure combinations. Buyers should provide drawings so the supplier can confirm maximum glass panel sizes and sash division feasibility.
Inquiry Guidance
To request a quote, please share your project location, required size, quantity, preferred frame color, glass type, hardware requirements, and drawings or reference photos if available.
FAQ
What is this product?
It is a DERCHI custom-made thermal-break aluminum system window available in S9, R8Y, and E5N series. Unlike stock aluminum windows, each unit is manufactured to project-specific dimensions, sash divisions, and performance configurations.
Where can it be used?
S9 suits modern residential and new construction; R8Y targets coastal, typhoon, and anti-theft applications; E5N fits bathrooms, bedrooms, narrow tall windows, and high-rise interior cleaning. Multi-grid curtain wall and bay window combinations are also available.
Can it be customized?
Yes. Buyers can specify glass type, color finish, hardware, sash layout, opening direction, and structural combinations. Provide project drawings so the supplier can confirm size limits, performance values, and production feasibility for each configuration.
What information is needed for a quote?
Provide quantity, destination port or address, project drawings with opening dimensions, series preference, glass specification, color finish, hardware selection, and packaging requirements. This allows the supplier to calculate an accurate price rather than a platform reference range.
Can it be used for B2B projects?
Yes. The product supports hinged casement window wholesale and commercial project orders with custom sizes, multi-series selection, and export-grade packaging. Confirm production capacity and lead time for bulk volumes with the supplier before committing to a project schedule.
Are technical documents available?
CE, NFRC, CSA, and US/AU IGCC glass certifications are listed. Buyers should request test reports for acoustic and thermal performance standards applicable to their target market and confirm which documents apply to the selected series.
What should buyers confirm before ordering?
Confirm warranty terms, installation documentation, exact glazing thickness options beyond 5+27A+5, maximum overall window size for custom combinations, hardware brand specifications, and whether thermal insulation values represent Uf or Uw before placing a production order.
