





DERCHI offers affordable casement windows built as practical system windows with complete configuration, not stock standard or low-end units. The main E0 Glory Series delivers thermal break aluminum performance with controllable project costs.
- Custom thermal break aluminum profiles with double glazing
- Multiple series available for different budget tiers
- Configurable glass, size, color, and opening styles
Product Details
As an affordable casement windows manufacturer, DERCHI provides three project-ready series. The E0 Glory Series features a 100mm frame, 1.8mm wall thickness, and 35/30/12mm thermal break strips. The S6 Star Sea Series offers an 82mm frame with an invisible folding flyscreen and WEHAG handle. The Jinghong 100 Series provides a flush visual multi-cavity structure. Opening types include outward-opening, top-hung, and combined configurations.
For commercial affordable casement windows, the system supports 48/88 edge-wrapping and curved-arc top processes. Export packaging includes anti-scratch film, pearl cotton, waterproof outer film, and a fully enclosed wooden rack. Additional PE seawater-proof film, pallet fixation, and air bag isolation protect ocean freight. Door-to-door or port delivery is available for overseas buyers.
Product Features
- Thermal Break Strips: E0 features 35mm frame strips that reduce heat transfer, helping buyers manage energy efficiency in residential and commercial buildings.
- Double Tempered Glass: Standard 5+27A+5 glass with argon gas and a PVDF fluorocarbon spacer offers better durability than ordinary spacers.
- Weather Performance: Verified ratings include water tightness level 6, air tightness level 8, and wind pressure resistance level 9 across series.
- EPDM Sealing: Integrated EPDM strips combined with hidden drainage channels help manage water infiltration during heavy rain exposure.
- Safety Hardware: Anti-theft flyscreen and protective guardrail provide added security for ground-floor and residential installations.
- Structural Corners: Injection-glued corner cleats reinforce frame joints, supporting structural integrity during wind load and daily operation.
Customizable Styles
- Glass Options: Buyers can select from Low-E, laminated, frosted, tinted, ultra-clear, or blind glass. U-value for upgraded configs requires confirmation.
- Frame Profile: Choose E0 (100mm), S6 (82mm), or Jinghong 100 (100mm) thermal break aluminum frames based on structural and visual requirements.
- Size Range: Opening sash width spans 350-750mm and height 400-1500mm. Single fixed glass maximum is 6 sqm; overall limits require confirmation.
- Color Finish: Custom sizes and colors are supported via the DERCHI platform. Specific color card availability per series should be confirmed.
- Opening Configuration: Outward-opening, top-hung, and outward-opening top-hung styles are available. Fixed and opening combinations suit large widths.
Hardware Accessories
- Handle: The S6 Star Sea Series includes a WEHAG handle without base. Hardware brands for other series should be confirmed per project.
- Locking System: Lock points and lock seats are integrated into the sash to secure the window against forced entry attempts.
- Flyscreen: Anti-theft flyscreen opens inward while the glass sash opens outward. S6 features an invisible folding flyscreen sash.
- Drainage: Hidden drainage channels are built into the frame profile to direct water outward without exposing visible drainage holes.
- Sealing Hardware: EPDM sealing strips and injection-glued corner cleats reinforce weather tightness and corner joint strength.
Basic Parameters
| Performance Item | Available Information | Buyer Notes |
|---|---|---|
| Thermal Insulation | 2.0W level 6 (E0, S6, Jinghong 100) | Confirm U-value with different glass options like Low-E or laminated. |
| Wind Pressure Resistance | 5kPa level 9 (E0, S6, Jinghong 100) | Confirm if rating applies to maximum sizes or requires limitations. |
| Water Tightness | 700Pa level 6 (E0, S6, Jinghong 100) | Confirm testing standard and applicability to all configurations. |
| Air Tightness | 1.2 level 8 (E0, S6, Jinghong 100) | Confirm testing standard and certification body for project approval. |
| Sound Insulation | 35dB level 4 (E0, S6, Jinghong 100) | Confirm if rating applies to standard or upgraded glass configurations. |
Product Specifications
| Specification | Details |
|---|---|
| Product Name | DERCHI Thermal Break Aluminum Casement Window |
| Series Available | E0 Glory, S6 Star Sea, Jinghong 100 |
| Material | Thermal break aluminum profile, 1.8mm wall thickness |
| Standard Glass | 5+27A+5 fluorocarbon insulated aluminum spacer with argon |
| Frame Width | 100mm (E0, Jinghong 100) / 82mm (S6) |
| Thermal Break Strips | E0: 35/30/12mm; S6: 35/14.8/30mm |
| Opening Style | Outward-opening, top-hung, outward-opening top-hung |
| Sash Size Range | Width 350-750mm, Height 400-1500mm |
| Single Fixed Glass Max | 6 square meters |
| Customization | Glass, size, color, and opening configuration supported |
| MOQ | 2 square meters (confirm with supplier) |
| Delivery Reference | Approximately 25-35 days (confirm per order) |
| Packaging | Quadruple protection with wooden rack and PE seawater-proof film |
Advantages
- System-Level Configuration: Products are built as complete system windows with thermal break nodes and multi-cavity structures, not low-end or simple stock units.
- Multi-Series Matching: E0, S6, and Jinghong 100 series cover different budget and performance tiers for flexible project matching.
- Extensive Glass Options: Buyers can configure Low-E, laminated, frosted, tinted, ultra-clear, or blind glass to meet specific project requirements.
- Export-Ready Packaging: Quadruple protective packaging with PE seawater-proof film and pallet fixation ensures safe ocean freight delivery.
- B2B Procurement Support: Low MOQ of 2 sqm, custom sizes and colors, and door-to-door or port delivery support overseas buyer operations.
Application Scenarios
- Apartment: Outward-opening sashes save interior space, while double glazing with argon gas helps manage street noise for urban apartment buildings.
- Home Office: Thermal break strips and EPDM sealing reduce heat loss and drafts, supporting a stable indoor temperature for productive work environments.
- Hotel: The 35dB sound insulation rating and anti-theft flyscreen address guest comfort and security needs in hospitality room renovations.
- Office Building: Multi-cavity structures and flush visual designs offer a clean exterior appearance while meeting commercial wind pressure requirements.
- Outdoor: Buyers should confirm weather resistance, water tightness, and surface finish durability for exposed outdoor installations facing direct rain.
- Residential Building: Fixed and opening combinations allow large glazed areas in residential facades while keeping opening sashes within 350-750mm width limits.
- Exterior: Confirm wind pressure ratings, installation conditions, and waterproofing details for exterior wall applications in high-rise or exposed locations.
- Villa: Custom colors and blind glass options provide privacy and aesthetic flexibility for villa projects requiring tailored window configurations.
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 are these windows positioned as for project buyers?
They are DERCHI custom thermal break aluminum system windows positioned as affordable, not low-end or stock standard units. Multiple series cover different budget tiers for project matching.
Where can these windows be used?
They suit apartments, hotels, office buildings, residential projects, and villas. Buyers should confirm weather resistance, wind pressure, and installation conditions for outdoor or exterior applications.
Can the windows be customized?
Yes, custom sizes, colors, glass types, and opening configurations are supported. Buyers should confirm specific color availability per series and U-values for upgraded glass options.
What information is needed for a quote?
Buyers should provide quantity, opening dimensions, drawings, glass configuration, color finish, destination port, and packaging requirements for accurate affordable casement windows wholesale pricing.
Are the price ranges fixed transaction prices?
No, reference ranges like 79-109 USD/sqm are inquiry calibration guides, not fixed prices. Exact pricing requires configuration and quantity confirmation from the supplier.
What delivery time should buyers expect?
A reference of approximately 25-35 days appears in platform materials. Specific production lead time depends on order quantity and should be confirmed per order.
What should buyers confirm before ordering?
Buyers should confirm warranty terms, certifications, payment terms, grille pattern availability, and installation documents. Hardware brands beyond WEHAG for S6 also require confirmation.

