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fixed aluminium windows
fixed aluminium windows

The WY-75 Series aluminium casement window is offered as a fixed aluminium window for commercial, residential, and facade projects. Project buyers sourcing window systems for building envelopes can evaluate the 1.8MM profile thickness and multi-cavity frame structure with high-performance sealed glazing.

  • Custom color matching services for project-specific design requirements
  • 10-year product warranty provided
  • Products meet NFRC, AS2047, and CE certifications
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Product Details

The WY-75 Series aluminium casement window, marketed as fixed aluminium windows, uses a 1.8mm thick aluminum profile with a 75mm frame width and a multi-cavity frame structure paired with a high-performance sealed glazing system. The production process covers surface treatment, profile processing and cutting, glass cutting with PVDF aluminum strip installation, sash installation, frame and casing assembly, adjustment and sealing, and packing. DERCHI-developed customized hardware for the WY-75 series includes a safety handle configurable with two base style options, a 12-inch heavy-duty stainless steel friction hinge with multiple pivot points, and a customized lock point and lock base, with transmission components engineered for the profile system to deliver smooth operation and consistent locking pressure distribution. All hardware components are cycle-tested to DERCHI internal standards.

Buyers should confirm glass configuration from seven available options including single, double, triple, laminated, and frosted variants, with specific setups such as 5mm+20A+5mm double tempered glass with argon and PVDF aluminum strip, 5mm+27A+5mm, and 5mm+12A+5mm+12A+5mm. The outward opening or awning operation mode and the Black Skin finish—held as standard inventory for immediate availability on standard orders—should also be confirmed before selection. DERCHI supplies the complete window system including profile, hardware, accessories, glass, and finished products ready for installation, with delivery in 25–35 days after deposit and drawing confirmation, 100% inspection before shipment, and a 10-year quality warranty covering frame color retention and hardware function under correct operation. Products meet NFRC, AS2047, and CE certifications, and additional testing can be arranged if a buyer requires specific certification.

Product Features

  • WY-75 Series aluminium frame with 1.8 mm profile thickness and 75 mm frame width — select this gauge and frame depth when structural calculations require a heavier aluminium section.

  • Outward Opening / Awning operating mode — choose this configuration when interior clearance or rain-protected ventilation is a design requirement.

  • 35 dB sound insulation — specify this acoustic rating when external noise exposure demands sound-attenuating fenestration.

  • Style configurations include single sash, double sash, multi-panel assemblies, angled top designs, geometric shapes, and hexagonal windows — match window geometry to non-standard or decorative wall openings.

  • Double tempered glass with argon gas fill — select this glazing package when both safety glass and enhanced thermal performance are required.

  • Standard DERCHI insulation strip — confirms a thermal-break profile for projects specifying thermal separation between interior and exterior aluminium faces.

  • Two handle base style options — choose between aesthetic or functional handle configurations to match interior hardware schedules.

  • Stainless steel friction hinge with multiple pivot points — select this hinge specification when stable sash support under repeated outward opening cycles is required.

  • Upgraded profile rigidity satisfying wind load standards for high-rise commercial and super high-rise residential buildings — specify for installations above standard low-rise wind load thresholds.

Customizable Styles

  • Glass configuration: seven orderable options — single, double, triple, laminated, and frosted glass variants.

  • Double-glass build: 5mm+20A+5mm double tempered glass with argon gas and PVDF aluminum strip between panes.

  • Additional double-glass spacings available: 5MM+27A+5MM and 5MM+12A+5MM+12A+5MM.

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

  • Opening way: outward opening or awning configuration.

  • Handle: customized baseless safety handle.

  • Hinge: customized 12-inch heavy-duty hinge.

  • Lock point: customized lock point and lock base.

  • Insulation strip: standard DERCHI insulation strip.

  • Configuration decisions a buyer must specify before order: glass type and spacing, finish color, and opening way.

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; stainless steel friction hinge with multiple pivot points for stable support of open sashes.

  • Lock: customized lock point and lock base.

  • Transmission components engineered for the WY-75 profile system for smooth operation and consistent locking pressure distribution.

  • DERCHI insulation strip included as part of the hardware system.

  • DERCHI developed and customized the hardware components used for the WY-75 series.

  • 10-year quality warranty covers hardware and accessories working properly under correct operation.

Advantages

  • 15+ years of experience in aluminum windows and doors manufacturing

  • 70,000+ sqm factory area with 600+ employees and 600,000+ sqm annual output

  • 100% full inspection before shipment

  • Authorized by NFRC, CE, AS2047, CSA, and ISO9001

  • Product testing and certification arranged upon buyer request

  • 20+ experts R&D team with 100+ national patents

  • Custom color matching services for project-specific design requirements

  • Engineering and supervising service for installation

  • One-stop customer service from ordering to shipment

  • 25-35 days delivery after deposit and drawing confirmed

  • 10-year quality warranty

Application Scenarios

Project Scenario

Evidenced Applications

Commercial

High-rise commercial buildings, office buildings

Residential

Super high-rise residences, high-end residential projects, villas

Hospitality

Hotels

Exterior

High-altitude and strong-wind environments

FAQ

What must be confirmed technically before ordering?

The window system is supplied as finished products including profile, hardware, accessories, and glass ready for installation. Custom color matching services are available for project-specific design requirements, and engineering and supervising service for installation can be arranged.

What should buyers prepare for volume procurement?

Price is based on the buyer's specific requirement with shop drawing or window schedule. Delivery takes 25-35 days after deposit and drawing confirmation. A 10-year quality warranty applies, and products undergo 100% full inspection before shipment. Testing and certification can be arranged if the buyer requires it.

Which product details require confirmation before selection?

Confirm window schedule dimensions, opening type, glass specification, and color finish with the project design team before requesting a quotation.

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