





The 600 x 900 aluminium window is a DERCHI aluminum casement window with outward opening and awning configuration. It is suited for commercial, residential, and exterior projects including hotels, office buildings, and high-end residential developments.
- Multi-cavity frame structure with high-performance sealed glazing system
- Custom color matching services for project-specific design requirements
- Products meet NFRC, AS2047, and CE standards
Product Details
The DERCHI aluminum casement window is built on a 75MM frame width with 1.8MM profile thickness, using a multi-cavity frame structure paired with a high-performance sealed glazing system. The outward-opening awning operation relies on a stainless steel friction hinge with multiple pivot points, a customized 12-inch heavy-duty hinge, and transmission components engineered for the WY-75 profile system. The standard glass unit is double tempered glass with argon gas in a 5mm+20A+5mm configuration, assembled with a PVDF aluminum strip between the panes. Production follows a defined sequence: surface treatment, profile processing and cutting, glass cutting and aluminum strip installation, opening fan installation, frame and casing assembly, debugging and sealing, and packing.
Buyers should confirm the glass configuration before ordering, as seven options are available including single, double, triple, laminated, and frosted variants, with specific builds such as 5MM+27A+5MM and 5MM+12A+5MM+12A+5MM. The handle comes in two base style options to match different aesthetic and functional requirements, and the Black Skin finish is held as standard inventory for immediate availability on standard orders. DERCHI can supply either a complete window system—profile, hardware, accessories, and glass—or finished products ready for installation. Delivery runs 25-35 days after deposit and drawing confirmation, and the product carries a 10-year quality warranty covering frame unfading and peel-off as well as hardware and accessories working properly under correct operation.
Product Features
WY-75 Series aluminum casement window with 75MM frame width and 1.8MM profile thickness — upgraded rigidity satisfies wind load standards for high-rise commercial buildings and super high-rise residences.
Outward opening and awning configuration — this opening direction applies where interior clearance must be preserved or interior fixtures would obstruct inward swing.
Sound insulation performance of 35 dB — this rating suits noise-sensitive rooms facing moderate traffic or urban ambient sound.
Configurations include single sash, double sash, multi-panel assemblies, angled top designs, geometric shapes, and hexagonal windows — these options set the architectural form factor and opening layout.
Handle options include two base styles — this selection sets the visual finish and operating ergonomics.
Supply scope includes either complete window systems (profile, hardware, accessories, glass) or finished products ready for installation — this determines whether the project requires on-site assembly or direct fit-out.
Customizable Styles
Black Skin finish is the standard inventory color for immediate availability on standard orders.
Seven glass configuration options are available, including single, double, triple, laminated, and frosted glass variants.
Specific glass builds include 5mm+20A+5mm double tempered with argon gas and PVDF aluminum strip, 5mm+27A+5mm, and 5mm+12A+5mm+12A+5mm.
Buyers select among the seven glass configurations based on project acoustic and thermal performance requirements; the standard 5mm+20A+5mm argon-filled build delivers 35 dB sound insulation.
Opening way is configurable as outward opening or awning.
Hardware Accessories
Handle: customized baseless safety handle with two base style options for different aesthetic and functional requirements
Hinge: customized 12-inch heavy-duty hinge using a stainless steel friction hinge with multiple pivot points
Locking system: customized lock point paired with a matching lock base
Transmission mechanism engineered for the WY-75 profile system
10-year product warranty covers hardware components and accessories working properly under correct operation
Advantages
DERCHI operates a 70,000+ m² factory with a 4,000 m² showroom and 600+ employees, with 15+ years of experience in aluminum windows and doors.
Annual output reaches 600,000+ m², with 200,000+ completed cases across 100+ countries.
A 20+ expert R&D team holds 100+ national patents and 50+ industry honors.
Products are authorized by NFRC, CE, AS2047, CSA, and ISO9001.
100% full inspection is performed before shipment.
DERCHI's own product specifications document the 70,000+ m² factory area and 100% full inspection before shipment.
Custom color matching services are available for project-specific requirements, and OEM/ODM cooperation is accepted.
Engineering and supervising service guides installation, with one-stop customer service from ordering to shipment.
Application Scenarios
Project Type |
|---|
High-rise commercial buildings |
Super high-rise residences |
Hotels |
Office buildings |
High-end residential projects |
Villas |
Exterior applications |
Urban traffic noise isolation |
Industrial noise isolation |
FAQ
What must be confirmed technically?
Pricing is based on buyer specifications including drawings, color, and glass type. The window system can be supplied as individual components—profile, hardware, accessories, and glass—or as finished products. Custom color matching is available for project-specific requirements.
What should buyers prepare for volume procurement?
Buyers should prepare project drawings, color requirements, and glass specifications to receive an accurate quotation. Delivery takes 25-35 days after deposit and drawing confirmation. OEM/ODM cooperation is supported for volume orders.
Which product details require confirmation before selection?
Confirm the opening direction, frame dimensions, and finish before placing an order.
Is project installation support available?
Engineering and supervising service for installation is provided, with one-stop customer service from ordering to shipment.

