The 48 casement window is a DERCHI custom thermal-break aluminum window built to project-specific dimensions rather than stocked as a standard size. With a 48-inch width (approximately 1219mm), it is engineered as a made-to-size system window available in three series tiers — S9 Starlight System for high-end projects, E0 Glory Series for budget-sensitive batch work, and S6 Star Sea System for lightweight configurations with hidden screens.
- Made-to-size: height, sash split, and configuration are determined per project drawing
- Three series tiers cover high-end, budget, and lightweight project segments
- Outward casement, top-hung, and outward-opening top-hung opening types available
- Glass sash opens outward; screen sash opens inward for ventilation control
Product Details
The primary configuration for this custom 48 casement window uses a 109mm frame with 1.8mm wall thickness and 44/24/15mm multi-insulation strips (S9 Starlight System), targeting lower U-values for energy-conscious projects. Standard glazing is 5+27A+5 fluorocarbon hollow aluminum spacer glass. Opening types include outward casement, top-hung, and outward-opening top-hung, with the glass sash swinging outward and the screen sash operating inward. For buyers evaluating cost across tiers, E0 offers a 100mm frame with 35/30/12mm insulation strips for batch residential work, while S6 provides an 82mm frame with a hidden folding screen sash for lightweight project windows.
Because the 48-inch width (1219mm) exceeds the casement opening sash range of 400–750mm width, this window typically requires multi-sash splitting — double-sash, triple-sash, fixed center with side opening, or top/bottom fixed transom configurations. The outward top-hung range spans 510–750mm width and 700–1500mm height. Single fixed glass panels can reach up to 6 square meters. Buyers should provide project drawings so the supplier can determine the appropriate sash layout, series selection, and combination format for the specific wall opening.
Product Features
- Multi-Cavity Aluminum Profile: The 1.8mm wall thickness multi-cavity profile distributes structural load across multiple chambers, helping the frame maintain dimensional stability under wind pressure and daily operation.
- 44mm Ultra-Wide Insulation Strip (S9): This extra-wide strip configuration reduces heat transfer across the frame, supporting lower U-values for projects in demanding climate zones where thermal performance is a procurement priority.
- Three-Seal Structure: Three sealing levels work with the EPDM water-swelling seal strip to manage water ingress and air leakage, addressing both rain-driven and pressure-driven infiltration concerns in exposed installations.
- Micro-Elastic Glass Block: This component reduces stress concentration at glass corners, which helps preserve seal integrity over time — particularly relevant for large fixed panels approaching the 6-square-meter maximum.
- Frame and Sash Flush Alignment: The same-horizontal-line alignment between frame and sash creates a clean exterior appearance while maintaining the structural relationship needed for consistent hardware operation and weather sealing.
- Security Hardware Suite: The custom child-safe handle, two-point lock, anti-pull angled transmission box, and anti-pry strike plate work together to address forced-entry concerns for ground-floor and accessible openings.
Customizable Styles
- Glass Configuration: Options include argon gas, Low-E, laminated, frosted, tinted, ultra-clear, and blind glass with PVDF/fluorocarbon hollow aluminum spacers — confirm which glass type suits your climate and acoustic requirements.
- Frame and Series Selection: S9 (109mm), E0 (100mm), and S6 (82mm) frame widths offer different insulation strip configurations and price tiers — confirm which series matches your project budget and performance targets.
- Size and Sash Layout: Height is custom per project; the 48-inch width typically splits into double-sash, triple-sash, or fixed-plus-opening combinations — provide drawings for accurate sash division.
- Colors and Finishes: Twelve S9 colors plus eight E5N card colors are available with powder coating, fluorocarbon, wood grain, or metallic flash silver finishes — confirm interior and exterior color combinations at quotation.
- Opening and Screen Configuration: Outward casement, top-hung, and outward-opening top-hung options pair with 48-mesh screens, steel wire mesh, or S6 hidden folding screens — confirm screen type and opening direction per room.
Hardware Accessories
- Handle: DERCHI custom child-safe handle is standard on S9; S6 uses a WEHAG handle without base — optional fingerprint/password/key handle available for access-controlled openings.
- Hinge: The 13-inch casement friction hinge and custom load-bearing hinge manage sash weight during outward operation — confirm hinge capacity for your specific sash dimensions.
- Lock System: Two-point lock with roller-sleeve lock point and anti-pull angled transmission box provides multi-point securing — confirm lock configuration meets your project security specifications.
- Strike Plate and Sealing: Anti-pry strike plate pairs with EPDM water-swelling seal strip to resist forced entry and manage water ingress at the sash-to-frame interface.
- Screen and Safety Accessories: Optional 48-mesh high-transparency screen, steel wire mesh, guardrail, and blinds are available — confirm which accessories are included versus optional at quotation stage.
Basic Parameters
| Performance Item | Available Information | Buyer Notes |
|---|---|---|
| Thermal Insulation | 2.0W Class 6 (S9/E0/S6) | Buyers should confirm U-value for their climate zone and glass selection. |
| Wind Pressure Resistance | 5kPa Class 9 (S9/E0/S6) | Buyers should confirm suitability for local building code wind load requirements. |
| Water Tightness | 700Pa Class 6 (S9/E0/S6) | Buyers should confirm performance applies to their specific size and configuration. |
| Air Tightness | 1.2 Class 8 (S9/E0/S6) | Buyers should confirm test standards and applicability to their selected series. |
| Sound Insulation | 35dB Class 4 (S9/E0/S6) | Buyers should confirm glass configuration matches the tested setup for acoustic performance. |
Product Specifications
| Specification | Details |
|---|---|
| Product Name | 48 Casement Window (DERCHI) |
| Product Type | Thermal-break aluminum casement window, custom made-to-size |
| Material | Multi-cavity thermal-break aluminum profile, 1.8mm wall thickness |
| Glass Type | 5+27A+5 fluorocarbon hollow aluminum spacer glass (standard) |
| Glass Thickness | 5mm+27A+5mm double glazed (standard); customization available |
| Frame Option | S9 (109mm), E0 (100mm), S6 (82mm) — confirm series per project tier |
| Hardware | Child-safe handle, friction hinge, two-point lock, anti-pry strike plate |
| Opening Style | Outward casement, top-hung, outward-opening top-hung |
| Size Range | Width 48 inches (1219mm); height custom per project; casement sash 400-750mm W × 400-1500mm H |
| Application | Residential, commercial, hotel, villa, batch housing projects |
| Customization | Glass, color, finish, structure, screen, hardware — confirm at quotation |
| Reference Pricing | S9/S6/E0 approx. 79-109 USD/sqm; high-impact variants approx. 99-129 USD/sqm (platform-extracted references only, not fixed transaction prices) |
| Packaging | Four-layer protection: anti-scratch film, pearl cotton, waterproof outer film, fully enclosed wooden rack; pallet fixation and air bag isolation |
Advantages
- Made-to-Size System Approach: Each window is engineered to project drawings rather than stocked as standard — buyers provide dimensions, sash layout, and series selection for factory production.
- Three-Tier Series Strategy: S9, E0, and S6 cover high-end, budget, and lightweight segments, allowing buyers to match series to project budget without switching suppliers.
- Multi-Cavity Profile Technology: The 1.8mm multi-cavity aluminum profile with three-seal structure and EPDM water-swelling seal strip addresses thermal, acoustic, and weather performance in one system.
- Configuration Flexibility: Glass options from Low-E to laminated, twelve-plus color options, and structures from single-sash to multi-pane window walls support diverse architectural requirements.
- Export Packaging and Logistics: Four-layer protection packaging with wooden rack, pearl cotton, waterproof film, and air bag isolation supports overseas shipping — door-to-door or port delivery available.
Application Scenarios
- Apartment: Space-conscious apartment projects benefit from the outward-opening design that preserves interior floor space — confirm sash size falls within the 400-750mm casement range for proper operation.
- Home Office: Ventilation control matters in home office spaces where airflow and noise reduction coexist — the 35dB sound insulation class supports quieter work environments when paired with appropriate glass.
- Hotel: Hotel fenestration demands consistent appearance across many units — the frame-and-sash flush alignment and multiple finish options support uniform façade treatment for batch procurement.
- Office Building: Commercial office buildings often require large glazed openings — the 48-inch width can combine fixed center panels with side-opening sashes to balance daylighting with controlled ventilation.
- Outdoor: For outdoor-facing installations, buyers should confirm water tightness (700Pa Class 6) and wind pressure resistance (5kPa Class 9) apply to their specific size, configuration, and local exposure conditions.
- Residential Building: Batch residential developments can leverage the E0 series for budget-sensitive thermal-break double glazing — confirm insulation strip configuration and frame width meet project specification documents.
- Exterior: Exterior wall applications require verified weather resistance — buyers should confirm surface finish durability, sealing performance, and installation conditions for the specific climate and exposure level of the project site.
- Villa: Villa specifications typically call for the S9 series with its 44mm ultra-wide insulation strip and extensive color options — confirm glass upgrades and hardware tier match the architectural specification.
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 exactly is this 48 casement window product?
It is a DERCHI custom thermal-break aluminum casement window with a 48-inch width (approximately 1219mm), made-to-size in three series tiers — S9 high-end, E0 budget, and S6 lightweight — rather than a stocked standard window.
Does the 48-inch width come with a fixed height?
No. Height is custom per project. The 48-inch width typically requires multi-sash splitting since it exceeds the 400-750mm casement sash range. Provide drawings for accurate sash layout.
What reference price ranges apply, and are they fixed?
For buyers researching 48 x 48 casement window price levels, platform-extracted references show approximately 79-109 USD/sqm for S9/S6/E0 and 99-129 USD/sqm for high-impact variants. These are inquiry-calibration references only — submit configuration for formal quotation.
What information should I provide for an accurate quote?
Provide quantity, destination port, project drawings with opening dimensions, series selection, glass type, color and finish, hardware tier, screen preference, and packaging requirements for a precise quotation.
What certifications are referenced, and can I verify them?
The official website references CE, NFRC, CSA, and US/AU IGCC glass certifications. Buyers must verify actual certificate validity, scope, and applicability to their specific configuration and target market before ordering.
What is the common MOQ and delivery time?
Platform pages reference a common MOQ of approximately 2 square meters and delivery of approximately 25-35 days. Both may vary by series, configuration, and order scope — confirm with the supplier for your specific order.
Can technical drawings and test reports be supplied?
Buyers should request technical drawings, installation guides, and detailed test reports applicable to their specified configuration. Confirm which compliance documents are available before placing a bulk order.
