The 36 casement window from DERCHI is a custom thermal-break aluminum system window built around a 36-inch width category (~914mm) — not a stock standard size. The E5N Langyue series serves as the primary inward-opening/tilt-and-turn option, while S9 Xingguang and R8Y Ruixuan provide outward-opening alternatives for different project demands. Height is project-configured within the opening sash engineering range, not fixed.
- Three DERCHI series options covering inward, outward, and safety-focused opening directions
- PA66 thermal-break insulation with triple seal and glue-injected corner joints
- Extensive glass, color, hardware, and structural customization for residential and commercial projects
Product Details
The E5N Langyue system carries an 85mm frame width with 2.0mm wall thickness and a 35mm PA66 insulation strip. Standard glazing is 5+27A+5 double-tempered insulated glass with a fluorocarbon (PVDF) spacer bearing the DERCHI logo. A triple seal system with glue-injected corner joints, silicone, and internal/external pressure gasket process manages weather tightness, while concealed drainage and interior-side maintenance access simplify upkeep. The inward-opening/tilt-and-turn mechanism offers a 90-degree standard opening angle, with a 180-degree accessory available as an option.
For projects requiring outward swing, the S9 Xingguang system features a 109mm frame, 1.8mm wall thickness, and 44/24/15mm multi-strip insulation configuration, supporting outward opening and top-hung operation. The R8Y Ruixuan system adds safety positioning with anti-fall rope and anti-theft screen for coastal or high-rise scenarios. A flyscreen version is available where the glass sash opens inward and the mesh sash opens inward with an optional key-lock handle. As a custom 36 casement window, height is project-configured within the engineering range — buyers should confirm the applicable range during quotation.
Product Features
- Thermal-Break PA66 Insulation: The 35mm PA66 insulation strip on the E5N series reduces thermal transfer, supporting energy performance in residential and commercial builds where heating or cooling efficiency matters.
- Triple Seal Weather System: Glue-injected corner joints with silicone and internal/external pressure gasket process create a triple seal barrier, helping manage water infiltration and air leakage at frame corners.
- German Hardware Integration: WEHAG/Winkhaus baseless handles paired with concealed tilt-and-turn hinges deliver smooth inward operation, giving occupants controlled ventilation and secure locking in one mechanism.
- Double-Tempered Insulated Glazing: Standard 5+27A+5 double-tempered insulated glass with a PVDF spacer bearing the DERCHI logo balances sound reduction and thermal performance for everyday residential comfort.
- Concealed Drainage Design: The drainage system is concealed within the frame profile, maintaining exterior aesthetics while channeling water away — interior-side maintenance access simplifies periodic cleaning and inspection.
- Glass Configuration Flexibility: Buyers can select from argon gas, Low-E, laminated, frosted, tinted, ultra-clear, and built-in blind glass options to match privacy, solar control, or acoustic project requirements.
Customizable Styles
- Glass Configuration: Standard 5+27A+5 double-tempered insulated glass; optional argon, Low-E, laminated, frosted, tinted, ultra-clear, and built-in blind glass — confirm performance documents for selected configuration.
- Color and Finish: Over 20 DERCHI color card options including Sand Gray, Black Walnut, Starry Black, Pearl White, and Indigo Gray; surface treatments span powder coating, fluorocarbon, wood grain, and metallic flash silver.
- Structural Combinations: Single sash, double sash, fixed-plus-opening, three-segment, top transom, left-right asymmetric, 4-lite through 6-pane, multi-pane window wall, and pitched or bay-style formats — specify layout in drawings.
- Hardware Upgrades: Optional fingerprint handle, password handle, 180-degree tilt-and-turn accessory, and sound or insulation cotton — confirm availability for the selected series and 36-inch configuration.
- Opening Direction and Screen: E5N inward/tilt-and-turn with flyscreen and key-lock handle; S9 outward/top-hung with 48-mesh screen; R8Y outward with anti-theft screen — select by project scenario.
Hardware Accessories
- E5N Handle: German WEHAG/Winkhaus baseless handle provides smooth inward operation with integrated locking — confirm finish options and handle color matching during quotation.
- E5N Hinge System: Concealed tilt-and-turn hinge supports 90-degree standard inward opening with an optional 180-degree accessory for wider access — verify sash weight compatibility.
- S9 Friction Stay: The 13-inch friction stay hinge enables outward and top-hung operation with controlled opening — paired with custom lock points and strike plates for security.
- R8Y Multi-Point Lock: Custom black zinc alloy four-face six-point lock with WEHAG handle and 12-inch friction stay — positioned for safety protection and coastal scenarios.
- Optional Security Hardware: Fingerprint handle, password handle, and key-lock flyscreen handle available across series — confirm which options apply to the selected configuration and opening direction.
Basic Parameters
| Performance Item | Available Information | Buyer Notes |
|---|---|---|
| Thermal Insulation | E5N: 1.8W level; S9/R8Y: 2.0W (level 6) | Confirm exact U-value and whether Low-E or argon is required for target performance. |
| Wind Pressure Resistance | E5N: ~5kPa; S9/R8Y: 5kPa (level 9) | Confirm exact classification level and applicable test standard for project compliance. |
| Water Tightness | E5N: 550-700Pa; S9/R8Y: 700Pa (level 6) | Verify which E5N value applies to the specific configuration with or without flyscreen. |
| Air Tightness | E5N: 1.2; S9/R8Y: 1.2 (level 8) | Confirm if classification level documentation is included for project approval. |
| Sound Insulation | E5N: 35dB; S9/R8Y: 35dB (level 4) | Confirm glass configuration required to achieve this rating for the project. |
Product Specifications
| Parameter | Details |
|---|---|
| Product Name | DERCHI thermal-break aluminum casement window, 36-inch width category (~914mm) |
| Product Type | Custom made-to-size system window — not stock standard |
| Material | Thermal-break aluminum, PA66 insulation strip |
| Glass Type | 5+27A+5 double-tempered insulated (standard); Low-E, argon, laminated, frosted, tinted, ultra-clear, built-in blind (optional) |
| Glass Thickness | 5mm tempered + 27mm air gap + 5mm tempered |
| Frame Option | E5N: 85mm width / 2.0mm wall; S9: 109mm / 1.8mm; R8Y: 118mm / 1.8mm |
| Hardware | WEHAG/Winkhaus handle, concealed hinge (E5N); friction stay (S9/R8Y); six-point lock (R8Y) |
| Opening Style | Inward/tilt-and-turn (E5N); outward/top-hung (S9); outward with safety features (R8Y) |
| Size Range | Width ~914mm; opening sash width 508-1000mm, height 600-2000mm (manual) or 560-2000mm (export page) — confirm |
| Application | Bathroom, bedroom, stairwell, high-rise, coastal, commercial facade |
| Customization | Size, color, glass, hardware, structure, screen, blind — project-configured |
| Packaging | Four-layer: anti-scratch film, pearl cotton, waterproof film, wooden rack; plus PE anti-seawater film and air-bag isolation |
| Notes | Height is project-configured, not fixed. Confirm MOQ, lead time, warranty, and certification applicability with supplier. |
Advantages
- Made-to-Size System Window: Each unit is built to project specifications around the 36-inch width category — not pulled from stock. Height is configured within the engineering range per drawing.
- Multi-Series Selection: Three DERCHI series cover inward-opening, outward-opening, and safety-focused coastal scenarios, letting buyers match series to specific project and environmental demands.
- Thermal Performance Differentiation: E5N achieves a 1.8W thermal insulation level using a 35mm PA66 strip — compare against S9 and R8Y at 2.0W when energy performance is a priority.
- German Hardware Partnership: WEHAG/Winkhaus baseless handles on E5N and R8Y series pair with concealed or friction-stay hinges for reliable daily operation and secure locking.
- Export-Ready Packaging: Four-layer protection with anti-scratch film, pearl cotton, waterproof film, and wooden rack — plus PE anti-seawater film and air-bag isolation for international shipping.
Application Scenarios
- Apartment: Compact 36-inch openings in apartment bathrooms and bedrooms benefit from the E5N tilt-and-turn mechanism — top-hung position provides trickle ventilation without swinging the sash fully into the room.
- Home Office: Controlled airflow and acoustic comfort matter in work-from-home spaces. The 35dB sound insulation rating with standard double-tempered glass helps reduce street noise during focused work hours.
- Hotel: Guest room windows requiring privacy, ventilation, and easy interior maintenance suit the E5N inward-opening design. Optional frosted or tinted glass adds privacy without sacrificing natural light transmission.
- Office Building: Stairwell and service-area windows in commercial buildings often need compact, controllable openings. The 36-inch width category fits these secondary spaces where full-size curtain wall systems are unnecessary.
- Outdoor: Balcony or terrace-adjacent openings exposed to weather require robust water tightness. Buyers should confirm wind pressure, water tightness, and surface finish suitability for the specific outdoor installation condition.
- Residential Building: Multi-unit residential projects can standardize on one DERCHI series across bathrooms, bedrooms, and stairwells — selecting E5N for interior-swing spaces or S9 for exterior-swing corridors and walkways.
- Exterior: Facade-mounted windows face wind, rain, and UV exposure. Confirm that the selected color finish, gasket material, and drainage design meet local weather resistance and wind load requirements before ordering.
- Villa: Custom villa projects often combine multiple opening styles and pane configurations. The structural options — from single sash to multi-pane window wall — let architects specify varied layouts within one series.
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
Is the 36-inch casement window a stock standard size?
No. The 36 casement window is a custom made-to-size thermal-break system window organized around a 36-inch width category (~914mm). Height is project-configured within the opening sash engineering range — not a fixed value. Provide drawings for quotation.
What is the difference between E5N, S9, and R8Y series?
E5N is inward-opening/tilt-and-turn with 85mm frame and 1.8W thermal insulation. S9 is outward-opening/top-hung with 109mm frame. R8Y adds safety features like anti-fall rope and anti-theft screen for coastal or high-rise use.
What glass options are available?
Standard glass is 5+27A+5 double-tempered insulated with PVDF spacer. Optional upgrades include argon gas, Low-E, laminated, frosted, tinted, ultra-clear, and built-in blind glass. Confirm performance documents for your selected configuration.
What information is needed for a quote?
Provide quantity, destination port or address, project drawings with opening dimensions, glass configuration, color/finish, hardware selection, opening direction, structural combination, and any screen or blind requirements. The more complete the inquiry, the more accurate the pricing.
What certifications are available?
The S9 series official website mentions CE, NFRC, CSA, and IGCC certifications. Buyers should verify whether these apply to the specific 36-inch configuration. E5N certification status should be confirmed with the 36 casement window supplier directly.
What is the MOQ and delivery time?
Platform pages reference a common MOQ of approximately 2 square meters and delivery around 25-35 days. These are platform-reference values — confirm exact MOQ and lead time with the 36 casement window manufacturer for the E5N series and your order quantity.
Are installation instructions and technical documents available?
Buyers should request installation instructions, technical drawings, test reports, and compliance documents during the quotation process. Confirm which documents are available for the selected series, glass configuration, and target market before order confirmation.
