DERCHI aluminum casement windows are outward-opening and awning-style units produced at a 70,000+ m² manufacturing base, with products meeting NFRC, AS2047, and CE standards. The product line serves B2B buyers sourcing aluminum window systems for commercial, residential, and exterior applications across more than 100 countries through 700+ distributors.
- Brand: DERCHI, with additional testing and certification available upon request for project-specific compliance
- Opening configuration: Outward Opening / Awning
- Factory base: 70,000+ m² with 600+ employees and 600,000+ m² annual output
Product Details
The DERCHI WY-118L aluminum casement window operates with outward opening and awning configurations, built with a 1.8mm aluminum profile at 118mm frame width, incorporating an S18 multi-cavity insulation strip and PVDF color finish. The sealed glass unit uses double tempered glass with argon gas in a 5mm+27A+5mm configuration, separated by a PVDF aluminum strip. Hardware consists of a WEHAG handle in black and silver, a WEHAG hinge, and a black six-point lock covered by an invention patent, paired with DERCHI's independently developed 13-inch flat open friction hinge and customized handle designs for the WY-118L series. Production follows surface treatment, profile processing and cutting, glass cutting and aluminum strip installation, opening panel installation, frame and casing assembly, troubleshooting and sealing, and packing. DERCHI supplies the complete window system including profile, hardware, accessories, glass, and finished products ready for installation.
Procurement teams should confirm layout requirements against the ten customizable WY-118L configurations combining fixed panels, casement sashes, and awning openings, and select from seven glass configurations including single, tempered, double-glazed, triple, insulating, laminated, and frosted glass. Color finishes include two PVDF options (Retro Green and Mint Gold) and ten stock color options ranging from wood-grain textures to solid metallic and matte finishes, with optional packaging in New 48 Pack or New 88 Pack. Confirm that project standards align with the product's NFRC, AS2047, and CE certifications, and request additional testing or certification if project codes require it. Plan for a 25-35 day delivery window after deposit and drawing confirmation, and verify that the 10-year quality warranty covering frame unfading, peel-off resistance, and hardware operation under correct use meets project requirements. Engineering and supervising service is available to guide installation, and 100% full inspection is conducted before shipment.
Product Features
- WY-118L aluminum casement window with outward opening and awning configuration — select this model when projects require outward-swinging ventilation that preserves interior clearance.
- 1.8 mm profile thickness and 118 mm frame width — choose this profile dimension for structural rigidity in larger casement panels.
- S18 multi-cavity insulation strip — specify this strip when thermal break design targets multi-cavity energy performance.
- WEHAG handle available in black, silver, and antique bronze finishes — match handle finish to frame color for visual consistency.
- Six-point lock with invention patent — select this locking system for projects requiring multi-point security engagement.
- 13-inch flat open friction hinge independently developed by DERCHI — choose this hinge for controlled outward opening without external arm obstruction.
- Double tempered glass with argon gas — specify this glazing for projects needing safety glass and improved thermal insulation.
- PVDF color finish and wood-grain texture finishes — select PVDF for UV resistance in exterior exposure or wood-grain for interior aesthetic matching.
- Water tightness 700Pa, air tightness 1.2 m³/(m·h), wind pressure resistance 5K Pa, and sound insulation 35 dB — use these ratings to confirm suitability for wind-driven rain, high-wind, and noise-sensitive environments.
- U-factor 0.23 and SHGC 0.20 — select this thermal performance for energy-code compliance in heating and cooling climates.
- DERCHI independently developed transmission boxes for the WY-118L system — choose this integrated hardware for compatibility within the same window platform.
- Supply scope includes profile, hardware, accessories, glass, and finished products — select the supply level based on project installation capability.
Customizable Styles
- Color finishes: two PVDF options (Retro Green, Mint Gold) and ten stock color options ranging from wood-grain textures to solid metallic and matte finishes.
- Seven glass configurations available: single, tempered, double-glazed, triple, insulating, laminated, and frosted glass.
- Standard glass configuration: Double Tempered Glass with argon gas, 5mm+27A+5mm, with PVDF Aluminum Strip between double glass.
- Handle finish: WEHAG Handle available in Black and Silver.
- Optional packaging: New 48 Pack or New 88 Pack.
- WY-118L series supports ten customizable layout configurations including combinations of fixed panels, casement sashes, and awning openings.
- Opening way: Outward Opening or Awning.
Hardware Accessories
- WEHAG handle available in black and silver finishes
- WEHAG standard no-base handle offered in black, silver, and antique bronze finish options
- DERCHI independently developed customized handle designs for the WY-118L series
- WEHAG hinge supplied as the standard hinge component
- 13-inch flat open friction hinge independently developed by DERCHI
- DERCHI transmission box included in the hardware system
- WEHAGE lock point and lock seat system works with a six-point locking mechanism
- Black Six Point Lock protected by an invention patent
- Window system supplied as an integrated package including profile, hardware, accessories, glass, and finished products ready for installation
- 10-year quality warranty covers hardware and accessories working properly under correct operation
- Confirm handle finish selection and customized handle design options against project requirements before specification
Basic Parameters
| Performance Dimension | Declared Value | What It Means | Test Evidence to Request |
|---|---|---|---|
| Thermal Insulation | U-factor 0.23; SHGC 0.20; S18 multi-cavity DERCHI insulation strip | Heat transfer through the window assembly, compared using the declared rating, test method, specimen configuration, and project boundary conditions. | Thermal test or simulation report per NFRC or ISO 10077-2 with the declared product configuration. |
| Wind Pressure Resistance | 5K Pa | Resistance to wind loads, reviewed against the specified test pressure, specimen size, anchorage, and acceptance criteria. | Wind-pressure test report confirming the tested specimen size, anchorage, and installation conditions. |
| Water Tightness | 700 Pa | Resistance to water penetration, reviewed against the test pressure, spray exposure, specimen configuration, and leakage criteria. | Water-penetration test report confirming the tested pressure and assembly configuration. |
| Air Tightness | 1.2 m³/(m·h) | Air leakage through the assembly, reviewed against the pressure differential, specimen area, reporting units, and tested configuration. | Air-leakage test report confirming the pressure and specimen configuration. |
| Sound Insulation | 35 dB | Reduction of airborne sound transmission, compared using the stated laboratory method, specimen construction, glazing, and reported acoustic metric. | Acoustic test report confirming 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 | 1.8MM |
| Frame Width | 118MM |
| Handle | WEHAG Handle in Black and Silver |
| Hinge | WEHAG Hinge |
| Lock Point | Black Six Point Lock (Invention patent) |
| Insulation Strip | Standard DERCHI insulation strip (S18 multi-cavity) |
| Opening Way | Outward Opening / Awning |
| Optional Package | New 48 Pack / New 88 Pack |
| Delivery Time | 25-35 days after deposit and drawing confirmed |
| Warranty | 10 years quality warranty |
- Confirmed drawings
- Glass configuration selection from seven available options (single, tempered, double-glazed, triple, insulating, laminated, frosted)
- Color finish selection from two PVDF options (Retro Green, Mint Gold) and ten stock color options
- Layout configuration selection from ten customizable configurations (fixed panels, casement sashes, awning openings)
- Optional package selection (New 48 Pack or New 88 Pack)
Advantages
- 15+ years of manufacturing experience in aluminum windows and doors
- 70,000+ m² factory area with 600+ employees
- 4,000 m² showroom
- 600,000+ m² annual output capacity
- 200,000+ successful project cases delivered
- Authorized by NFRC, CE, AS2047, CSA, and ISO9001
- 100+ national patents including invention patents
- 50+ industry honors
- 20+ experts R&D team
- 700+ distributors network trading with customers in 100+ countries
- 100% full inspection before shipment
- One-stop customer service from ordering to shipment
- OEM/ODM customization capability for project-specific requirements
- Engineering and supervising service available to guide installation
- 10 years quality warranty
- Full window system supply capability from profiles to finished products
Application Scenarios
| Scenario | Fit Basis | Confirm Before Specification |
|---|---|---|
| Commercial buildings in coastal or high-precipitation regions | Evidenced for commercial exterior use in coastal or high-precipitation climates | Confirm site exposure conditions for the coastal location |
| High-rise commercial structures | Evidenced for high-rise commercial building applications | Confirm dimensions and installation method for the floor height |
| Buildings near traffic corridors | Evidenced for buildings located near traffic corridors | Confirm site noise conditions before specifying |
| Office buildings | Evidenced for commercial office building applications | Confirm opening type and code requirements for office occupancy |
| Hotels | Evidenced for hotel applications | Confirm code requirements for hospitality occupancy |
| Apartment buildings | Evidenced for residential apartment building applications | Confirm code requirements for multi-unit residential use |
| Villa projects | Evidenced for villa projects | Confirm finish schedule for exterior use |
| Whole house customisation projects | Evidenced for whole house customisation projects | Confirm project scope, opening types, and finish schedule before ordering |
FAQ
What must be confirmed technically before ordering?
Shop drawings, frame color, and glass type must be confirmed before pricing, as each order is based on buyer-specific requirements. Delivery time runs 25-35 days after deposit and drawing confirmation.
What should buyers prepare for volume procurement?
Buyers should prepare project specifications covering profile, hardware, accessories, and glass requirements, as the supplier can provide the complete window system as finished products. Optional packaging options include New 48 Pack and New 88 Pack for volume shipments.
What standards do the products meet?
Products meet NFRC, AS2047, and CE standards, with additional testing available upon request.
What quality assurance is provided before shipment?
100% full inspection is conducted before shipment, and a 10-year quality warranty applies to the product.
Is installation support available?
Engineering and supervising service for installation is available for project buyers.
Can the supplier accommodate OEM or ODM requirements?
OEM and ODM capability is available through the customization options covering profile, hardware, accessories, and glass.
