The DERCHI WY-118L Series thin frame aluminium windows are aluminum casement windows with outward opening operation, suited for B2B project buyers evaluating slim-profile aluminium framing with certified performance.
- DERCHI independently develops and customizes transmission boxes for the WY-118L series
- Outward opening / awning operation for projects requiring this opening configuration
- Products meet NFRC, AS2047, and CE certifications
Product Details
The DERCHI WY-118L Series thin frame aluminium window is an aluminum casement window constructed with a 118 mm frame width and 1.8 mm profile thickness, using an S18 multi-cavity insulation strip as the thermal break. The double tempered argon-filled glass unit uses a 5 mm + 27A + 5 mm construction separated by a PVDF aluminum strip, and the sash opens outward or as an awning. WEHAG handles and hinges, a DERCHI-developed 13-inch flat open friction hinge, a DERCHI-customized transmission box, and a black six-point lock with an invention patent form the operating hardware. The production sequence runs from surface treatment through profile cutting, glass cutting and aluminum strip installation, opening panel installation, frame and casing assembly, troubleshooting and sealing, to packing, and DERCHI supplies the complete window system including profile, hardware, accessories, glass, and finished products ready for installation.
Procurement teams specify this window by selecting from seven glass configurations, ten customizable layout configurations combining fixed panels, casement sashes, and awning openings, and color finishes including two PVDF options plus ten stock colors. Optional packaging offers the New 48 Pack or New 88 Pack, delivery runs 25 to 35 days after deposit and drawing confirmation, and the product carries a 10-year warranty covering frame non-fading and non-peel-off plus properly operating hardware, with NFRC, AS2047, and CE certifications. Confirm the glass configuration, layout combination, color finish, package type, and drawing approval timeline before ordering, and engineering and supervising service is available to guide installation.
Product Features
- 118MM frame width — select this dimension when matching WY-118L series opening sizes.
- 1.8MM aluminum profile thickness — choose this wall thickness for structural and wind-load requirements.
- Outward opening / awning operation — pick this direction when interior swing clearance is limited or rain-shielded ventilation is needed.
- Standard WEHAG no-base handle available in three finish options: black, silver, and antique bronze — match the finish to the hardware palette across the full range.
- Black six-point lock (invention patent) with WEHAG lock point and lock seat system — select this configuration for multi-point casement security.
- S18 multi-cavity insulation strip — choose this thermal-break specification for energy-performance targets.
- Double tempered glass with argon gas — select this glazing assembly when both safety and insulation are required.
- 13-inch flat open friction hinge independently developed by DERCHI — choose this hinge for controlled outward-sash friction.
Customizable Styles
- Color finishes: two PVDF options (Retro Green, Mint Gold) and ten stock color options including wood-grain textures, solid metallic, and matte finishes.
- Glass configurations: seven options — single, tempered, double-glazed, triple, insulating, laminated, and frosted glass; the standard double tempered argon-filled unit is 5mm+27A+5mm with a PVDF aluminum strip between the panes.
- Layout configurations: ten customizable arrangements combining fixed panels, casement sashes, and awning openings.
- Handle: WEHAG handle available in Black and Silver.
- Opening way: outward opening or awning.
- Optional packaging: New 48 Pack or New 88 Pack.
Hardware Accessories
- WEHAG no-base handle in black, silver, and antique bronze finishes is the standard handle option.
- WEHAG hinge and the 13-inch flat open friction hinge independently developed by DERCHI form the hinge configuration.
- The Black Six Point Lock, covered by an invention patent, pairs with the WEHAGE lock point and lock seat system and a DERCHI customized transmission box to operate the six-point locking mechanism.
- DERCHI customized handle designs are available for the WY-118L series.
- The window system is supplied as a complete package including profile, hardware, accessories, and glass ready for installation.
- A 10-year quality warranty covers hardware and accessories working properly under correct operation.
- Verify that any replacement or alternative hardware is compatible with the existing profile system before final specification.
- Confirm handle finish and customized hardware design selections against project aesthetic requirements before final specification.
Basic Parameters
| Performance Dimension | Product Value | Meaning & Test Method | Evidence to Request |
|---|---|---|---|
| Thermal Insulation | U-factor 0.23; SHGC 0.20; S18 multi-cavity insulation strip; Standard DERCHI insulation strip | Measures heat transfer through the window assembly; compare using the declared rating, test method, specimen configuration, and project boundary conditions per NFRC or ISO 10077-2. | Request the applicable thermal test or simulation report and the declared product configuration. |
| Wind Pressure Resistance | 5K Pa | Measures the window's resistance to wind loads; review against the specified test pressure, specimen size, anchorage, and acceptance criteria per ASTM E06.51, FGIA NAFS, or ISO 6613. | Request the wind-pressure test report and confirm the tested specimen and installation conditions. |
| Water Tightness | 700 Pa | Measures resistance to water penetration under spray exposure; review against the test pressure, spray exposure, specimen configuration, and leakage criteria per ASTM E06.51, FGIA NAFS, or ISO 6613. | Request the water-penetration test report and confirm the tested pressure and assembly configuration. |
| Air Tightness | 1.2 m³/(m·h) | Measures air leakage through the assembly; review against the pressure differential, specimen area, reporting units, and tested configuration per ASTM E06.51, FGIA NAFS, or ISO 6613. | Request the air-leakage test report and confirm its pressure and specimen configuration. |
| Sound Insulation | 35 dB | Measures acoustic insulation; compare using the stated laboratory method, specimen construction, glazing, and reported acoustic metric per ISO 10140-1 or ASTM E90. | Request the acoustic test report and confirm that the tested construction matches the proposed configuration. |
Product Specifications
| Specification | Value |
|---|---|
| Glass | Double Tempered Glass with argon gas 5mm+27A+5mm (PVDF Aluminum Strip between double glass) |
| Profile Thickness | 1.8 mm |
| Frame Width | 118 mm |
| Opening Way | Outward Opening / Awning |
| Handle | WEHAG Handle in Black and Silver |
| Hinge | WEHAG Hinge |
| Friction Hinge Size | 13-inch |
| Lock Point | Black Six Point Lock (Invention patent) |
| Insulation Strip | Standard DERCHI insulation strip |
| U-factor | 0.23 |
| SHGC | 0.20 |
| Water Tightness | 700 Pa |
| Air Tightness | 1.2 m³/(m·h) |
| Wind Pressure Resistance | 5 kPa |
| Sound Insulation | 35 dB |
| Optional Package | New 48 Pack / New 88 Pack |
| Delivery Time | 25-35 days after deposit and drawing confirmed |
| Warranty | 10 years quality warranty |
- Confirmed window dimensions for each unit
- Opening type per unit (outward opening or awning)
- Glass configuration selection from seven available options
- Color finish specification from PVDF and stock color options
- Layout configuration from ten available options
- Total quantity and package preference (New 48 Pack or New 88 Pack)
- Approved drawings for production start
Advantages
- DERCHI operates a 70,000+ m² factory with 600+ employees and an annual output of 600,000+ m² for large-volume project orders.
- A 20+ expert R&D team holds 100+ national patents—including invention, appearance, and design patents—for custom solution development.
- DERCHI's OEM/ODM capability enables manufacturing based on buyer-specific drawings, colors, and glass configurations, reducing project specification risk.
- This OEM/ODM capability is supported by DERCHI's own customization options as a documented supplier source.
- 100% full inspection before shipment confirms each unit meets specification before dispatch.
- Products carry NFRC, CE, AS2047, CSA, and ISO9001 authorization for international project compliance documentation.
- Engineering and supervising service is available to guide on-site installation.
- One-stop customer service from ordering to shipment coordinates production, inspection, and logistics in a single workflow.
- DERCHI independently develops hardware components and cooperates with global raw material and hardware brands for component sourcing.
Application Scenarios
| Scenario | Fit Basis | Confirm Before Specification |
|---|---|---|
| Residential buildings, apartments, and villa projects | Product application scope includes residential buildings, apartments, and villa projects. | Confirm opening direction, glazing package, and frame finish against project aesthetic and ventilation requirements. |
| Whole house customisation projects | Product application scope includes whole house customisation projects. | Confirm unit-by-unit sizing, hardware selection, and installation method for each opening. |
| Commercial buildings, office buildings, and hotels | Product application scope includes commercial buildings, office buildings, and hotels. | Confirm wind load rating, thermal transmittance target, and acoustic class against building code and project specification. |
| High-rise commercial structures | Product application scope includes high-rise commercial structures. | Confirm structural wind load calculations, glazing retention system, and installation access method for upper-floor units. |
| Exterior applications | Product application scope includes exterior applications. | Confirm weather sealing class, drainage detail, and exposure rating for the specific climate zone. |
| Coastal or high-precipitation regions | Product application scope includes coastal or high-precipitation regions. | Confirm corrosion protection specification, sealant compatibility, and maintenance schedule for marine or high-rainfall exposure. |
| Buildings located near traffic corridors | Product application scope includes buildings located near traffic corridors. | Confirm acoustic glazing configuration and sound reduction rating against the site noise survey. |
| Home offices | Product application scope includes home offices. | Confirm thermal comfort target, daylighting area, and ventilation mode for the working occupancy pattern. |
FAQ
What must be confirmed technically before ordering thin frame aluminium windows?
Buyers must confirm drawings, color, and glass type, as pricing is based on these specific requirements. The window system supply includes profile, hardware, accessories, and glass as a complete package.
What should buyers prepare for volume procurement?
Buyers should prepare finalized drawings and arrange the deposit, as delivery takes 25-35 days after both deposit and drawing confirmation. Optional packaging options include New 48 Pack and New 88 Pack for container loading planning. A 10-year quality warranty applies to the supplied products.
Which certification standards apply to international market projects?
Products meet NFRC, AS2047, and CE standards for international markets. Buyers should confirm project-specific requirements before finalizing the specification.
What installation support is available for project buyers?
Engineering and supervising service for installation is provided, and finished products are delivered ready for installation. One-stop customer service covers the process from ordering to shipment.
Can the system be customized for OEM or ODM projects?
OEM/ODM capability is available through the customization options for drawings, color, and glass type.
What quality assurance is provided before shipment?
100% full inspection is conducted before shipment to verify product quality.
