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Product Details

The WY-75 series aluminum casement window features a multi-cavity frame structure with 1.8mm profile thickness and 75mm frame width, paired with a high-performance sealed glazing system using double tempered glass filled with argon gas in a 5mm+20A+5mm configuration separated by a PVDF aluminum strip. Hardware includes DERCHI-developed customized components engineered specifically for the WY-75 profile system, including a stainless steel friction hinge with multiple pivot points, a customized baseless safety handle, and customized lock point and lock base, all of which have passed repeated cycle tests. The production process covers surface treatment, profile cutting, glass cutting with aluminum strip installation, opening fan installation, frame and casing assembly, sealing and debugging, and packing.

Buyers should confirm glass configuration from seven available options including single, double, triple, laminated, and frosted variants, with specific setups such as 5MM+27A+5MM and 5MM+12A+5MM+12A+5MM available. Handle selection includes ergonomic lever handles developed in-house with two base style options, while Black Skin finish is maintained as standard inventory color for immediate availability on standard orders. DERCHI supplies the complete window system including profile, hardware, accessories, and glass as well as finished products ready for installation, with delivery in 25-35 days after deposit and drawing confirmation, backed by a 10-year warranty covering frame color retention and hardware functionality under correct operation and 100% full inspection before shipment.

Product Features

• The WY-75 Series is an aluminum casement window with outward opening / awning configuration; projects requiring outward-swinging sash operation can specify this series directly.

• Profile thickness of 1.8mm and frame width of 75mm set the dimensional envelope for matching structural openings and wall integration.

• Single sash units, double sash combinations, multi-panel assemblies, angled top designs, geometric shapes, and hexagonal windows are all supported, so the configuration can follow the architectural opening geometry.

• The series delivers 35 dB of sound insulation, fitting projects with acoustic separation requirements.

• Upgraded profile rigidity and overall structural stability satisfy stringent wind load standards of high-rise commercial buildings and super high-rise residences, making the series suitable for high-rise applications.

• DERCHI-developed and customized hardware components are engineered for the WY-75 profile system, aligning hardware selection with the profile rather than requiring separate sourcing.

• Double tempered glass with argon gas and a PVDF aluminum strip between panes form the insulated glazing assembly for sealed units.

• The standard DERCHI insulation strip defines the thermal separation for the WY-75 system.

• A multi-cavity frame structure paired with a high-performance sealed glazing system addresses projects requiring integrated sealed glazing.

Customizable Styles

• Glass configuration: orderable setups include 5mm+20A+5mm double tempered with argon gas and PVDF aluminum strip, 5mm+27A+5mm, and 5mm+12A+5mm+12A+5mm.

• Finish: Black Skin is the standard inventory color for immediate availability on standard orders.

• Opening way: Outward Opening / Awning.

• Hardware: customized baseless safety handle, 12-inch heavy-duty hinge, and customized lock point and lock base.

Hardware Accessories

• Handle: customized baseless safety handle; ergonomic lever handles developed in-house with two base style options.

• Hinge: customized 12-inch heavy-duty stainless steel friction hinge with multiple pivot points.

• Lock point and lock base: customized components.

• Transmission mechanism engineered for the WY-75 profile system.

• All hardware components have passed repeated cycle tests.

• The WY-75 series uses DERCHI-developed and customized hardware components.

Product Specifications

Advantages

• DERCHI operates a 70,000+ m² factory with 600+ employees and achieves a 600,000+ m² annual output.

• DERCHI performs 100% full inspection before shipment.

• A 20+ expert R&D team provides custom color matching services for project-specific design requirements.

• Products are authorized by NFRC, CE, AS2047, CSA, and ISO9001, and can be tested and certificated upon buyer request.

• One-stop customer service from ordering to shipment includes engineering and supervising service for installation.

• These supplier capabilities are documented in DERCHI's own product specifications and company records, covering factory area, annual output, inspection procedures, certification authorizations, R&D team composition, and service scope.

FAQ

What must be confirmed technically?

Technical confirmation requires drawings, dimensions, quantity, frame color, and glass type, as pricing is based on these specific requirements. Custom color matching services are available for project-specific design requirements. The window system supply includes profile, hardware, accessories, and glass, delivered as finished products ready for installation.

What should buyers prepare for volume procurement?

Delivery takes 25-35 days after deposit and drawing confirmation. Buyers can request product testing and certification before shipment, which includes 100% full inspection under a 10-year quality warranty. One-stop customer service covers the process from ordering to shipment.

Which product details require confirmation before selection?

Before finalizing aluminium casement window selections, confirm the opening direction, glazing configuration, and frame finish against project drawings.