A 48 x 72 casement window measures 1219 x 1829 mm, covering approximately 2.23 square meters. Because the 1829 mm height exceeds conventional outward-opening sash limits, DERCHI engineers recommend inward-opening or fixed-plus-opening configurations for structural safety.
- Primary recommendation: E6N Xingyue system with a 103 mm frame and 2.0 mm wall thickness.
- Alternative series: E5N for narrow high windows, R8Y for coastal security.
- Standard glass: 5+27A+5 hollow tempered with fluorocarbon spacer.
- Custom sizes, colors, and structures are built to project specifications.
Product Details
At 1829 mm tall, this window requires specific engineering to ensure safe operation. DERCHI addresses this through the E6N Xingyue system, featuring a 103 mm thermal-break aluminum frame, 2.0 mm wall thickness, and a 35 mm PA66 insulation strip. The E6N supports inward tilt-and-turn and side-hung opening, allowing safe high-rise maintenance and controllable ventilation. If your project requires outward opening, a top transom or bottom fixed glass must be used to keep the opening sash within conventional height limits.
Buyers can configure a custom 48 x 72 casement window across three series: E6N for tall inward-opening needs, E5N Langyue (85 mm frame) for narrow high windows and bathrooms, and R8Y Ruixuan (118 mm frame) for coastal or security-focused outward opening. Each series uses the 5+27A+5 glass standard but offers different performance ratings. As a 48 x 72 casement window manufacturer, DERCHI provides inner and outer flush designs, hidden drainage, and glue-injected corner codes across these systems.
Product Features
- Engineering Safety at Height: The 1829 mm height exceeds standard outward-sash limits, making E6N inward tilt-and-turn or fixed-plus-opening configurations the structurally recommended approach.
- Thermal-Break Architecture: Features a 35 mm PA66 insulation strip, a three-seal system, and Vertical Isotherm Design to support energy efficiency in residential and commercial projects.
- Indoor Maintenance Access: Inward-opening sashes allow safe cleaning from inside high-rise buildings, eliminating the need for exterior access and reducing fall risks.
- Hardware Durability: Equipped with Germany WEHAG accessories, supporting high load-bearing operation and tested for over 100,000 open cycles for long-term project use.
- Structural Integrity: Built with glue-injected corner codes and hidden drainage to manage water runoff and maintain frame rigidity at large window dimensions.
- Multi-Series Project Matching: Offers E6N for tall openings, E5N for narrow spaces, and R8Y for coastal wind resistance, allowing precise alignment with local building conditions.
Customizable Styles
- Glass Options: Standard 5+27A+5 hollow tempered glass; custom options include Low-E, argon gas, laminated, frosted, tinted, ultra-clear, and blind glass for privacy or energy control.
- Frame and Color: E6N offers 12 colors including Sand Gray, Black Walnut, and Fluorocarbon Flash Silver; finishes include powder coating, fluorocarbon, and wood grain.
- Size and Configuration: Custom 48 x 72 casement window supports double-sash (610 mm each) or three-lite (406 mm each) structures, plus multi-pane and bay window combinations.
- Opening Direction: Choose inward tilt-and-turn, inward side-hung, or outward opening with top/bottom fixed glass to maintain structural safety at 1829 mm height.
- Commercial Project Customization: A commercial 48 x 72 casement window can be tailored with specific hardware, screens, and finishes; buyers should provide drawings for exact quoting.
Hardware Accessories
- E6N Handles: Features WEHAG baseless glass sash handle and a screen sash password handle, supporting both inward tilt-and-turn and side-hung operations.
- R8Y Locking System: Outward-opening configurations use a custom black zinc alloy four-side six-point lock for enhanced security and multi-point sealing.
- R8Y Hinges: Equipped with 12-inch friction hinges to manage outward-sash weight and maintain stable operation in windy conditions.
- Hardware Durability: WEHAG accessories are rated for 100,000+ open cycles; buyers should confirm specific load-bearing ratings during inquiry.
- Screen Integration: E6N screen sashes open inward with a secure password handle, while R8Y offers inward-opening anti-theft screen options for security needs.
Basic Parameters
| Performance Item | Available Information | Buyer Notes |
|---|---|---|
| Thermal Insulation | E6N: 35 mm PA66 strip, Vertical Isotherm Design. E5N: 1.8 W level. R8Y: 2.0 W class 6. | Confirm specific U-value units and test conditions for your glass configuration. |
| Wind Pressure Resistance | E5N: approximately 5 kPa. R8Y: 5 kPa class 9. | Verify exact ratings and referenced test standards before ordering. |
| Water Tightness | E5N: 550-700 Pa. R8Y: 700 Pa class 6. | E5N values vary by screen configuration; confirm specific setup. |
| Air Tightness | E5N: 1.2. R8Y: 1.2 class 8. | Confirm the test standard referenced for this rating. |
| Sound Insulation | E5N: 35 dB. R8Y: 35 dB class 4. | Confirm glass configuration required to achieve this rating. |
Product Specifications
| Parameter | Specification |
|---|---|
| Nominal Size | 48 x 72 in (1219 x 1829 mm) |
| Total Window Area | Approximately 2.23 sqm |
| Sash Width (Double-Sash) | Approximately 24.0 in / 610 mm each |
| Lite Width (Three-Lite) | Approximately 16.0 in / 406 mm each |
| Primary Series (E6N) | 103 mm frame, 2.0 mm wall thickness, 35 mm insulation strip |
| Standard Glass | 5+27A+5 hollow tempered, fluorocarbon aluminum spacer |
| E6N Opening Sash Range | Width 508-1000 mm, Height 600-2000 mm (local manual) |
| Alternative Series | E5N (85 mm frame), R8Y (118 mm frame) |
| Customization | Custom sizes, colors, and structures available upon request |
| Notes | Confirm exact MOQ, lead time, and test standards with supplier |
Advantages
- Height-Appropriate Engineering: Inward-opening and fixed-plus-opening configurations directly address the 1829 mm height safety concern, preventing unsafe outward-sash operation.
- Multi-Series Flexibility: E6N, E5N, and R8Y series allow buyers to match frame dimensions and opening styles to specific project types and building codes.
- Export-Ready Packaging: Four-layer protection including anti-scratch film, pearl cotton, waterproof outer film, and wooden rack ensures safe overseas shipping.
- Custom Manufacturing: As a 48 x 72 casement window supplier, DERCHI builds to specification with custom glass, colors, and hardware rather than offering standard stock.
- Verified Hardware Partnership: Integration of Germany WEHAG accessories across series provides consistent operational durability for commercial project requirements.
Application Scenarios
- Apartment: Inward tilt-and-turn configurations provide secure nighttime ventilation and easy indoor cleaning, making them suitable for multi-family residential units with exterior access limitations.
- Home Office: The 35 mm PA66 insulation strip and three-seal system help maintain a quiet indoor environment, supporting focus and productivity in residential workspaces.
- Hotel: Custom glass options like frosted or tinted variants offer guest privacy, while the robust 2.0 mm wall thickness withstands frequent use in hospitality settings.
- Office Building: A commercial 48 x 72 casement window can be configured with fixed top transoms and middle opening sashes to meet structural safety requirements in tall commercial facades.
- Outdoor: For exposed installations, buyers should confirm water tightness ratings and weather resistance; R8Y with EPDM water-swellable strips may be considered for harsh conditions.
- Residential Building: The E6N thickened system window delivers structural stability for project residential applications, accommodating large openings with safe ventilation features.
- Exterior: When installed in exterior walls, confirm wind pressure resistance and surface finish durability against local climate; hidden drainage manages water runoff effectively.
- Villa: Premium color finishes like Black Walnut or Fluorocarbon Flash Silver complement architectural aesthetics while providing the thermal performance required for private residences.
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
Why is inward-opening recommended for a 48 x 72 casement window?
The 1829 mm height exceeds conventional outward-opening sash limits. Inward tilt-and-turn or fixed-plus-opening configurations are structurally safer. If outward opening is required, a top transom or bottom fixed glass must be added to keep the opening sash within conventional range.
What information is needed for a project quote?
Buyers should provide quantity, destination port or door-to-door service needs, drawings with opening dimensions, series preference (E6N/E5N/R8Y), glass configuration, color/finish, hardware selection, screen requirements, and packaging preferences for accurate quoting.
Is this an in-stock standard window?
No, this is a custom-made product built to project specifications. It is not a standard stock window. Custom sizes, colors, and structures are manufactured based on the buyer's drawings and configuration choices.
What is the lead time and MOQ?
Platform data shows approximately 25-35 days delivery, but this varies by order specifics and must be confirmed. The common platform MOQ is 2 square meters; confirm the exact MOQ for the 48 x 72 configuration during inquiry.
Are E5N colors available for the E6N series?
Cross-series color availability must be confirmed. The E5N official website lists additional colors like Retro Green and Deep Sea Blue, but buyers should not assume color card transferability between E5N and E6N without supplier verification.
What certifications and test standards are available?
Certifications for E6N, E5N, and R8Y are not yet confirmed. Buyers should request compliance documents like AAMA, WDMA, CE, or CCC during inquiry. Also confirm which test standards (ASTM, EN, GB/T 7106) the performance ratings reference.
What packaging is used for export shipping?
Export packaging includes four-layer protection: anti-scratch protective film, wear-resistant pearl cotton, waterproof outer film, and a fully enclosed wooden rack. PE anti-seawater film, pallet fixation, and airbag isolation are also applied for shipping.
