The aluminium windows 1200 x 900 are aluminum casement windows built on the WY-75 profile system for distributors and trade customers across more than 100 countries.
- Outward-opening awning configuration with multi-cavity frame structure and high-performance sealed glazing system
- Custom color matching services accommodate project-specific design requirements
- 100% full inspection before shipment with one-stop customer service from ordering to shipment
- Engineering and supervising service available to guide installation
Product Details
The aluminium windows 1200 x 900 are aluminum casement windows with outward opening or awning operation, built on a WY-75 profile system with a 75MM frame width and 1.8MM profile thickness. The multi-cavity frame structure pairs with a high-performance sealed glazing system using double tempered glass, argon gas, and a PVDF aluminum strip between panes in a 5mm+20A+5mm configuration. DERCHI developed and customized hardware includes a stainless steel friction hinge with multiple pivot points, a transmission mechanism engineered for the WY-75 profile, a customized baseless safety handle, a 12-inch heavy-duty hinge, and customized lock point and lock base. Production follows seven steps: surface treatment, profile processing and cutting, glass cutting and aluminum strip installation, opening fan installation, frame and casing assembly, debugging and sealing, and packing.
Seven glass configuration 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 Black Skin finish is the standard inventory color for immediate availability on standard orders, and handle options include ergonomic lever handles with two base style options. Before placing orders, confirm the glass configuration, finish color, and handle base style to match project requirements. A 10-year product warranty covers frame unfading, peel-off resistance, and proper hardware and accessory operation under correct use, and delivery time runs 25-35 days after deposit and drawing confirmation with 100% full inspection before shipment.
Product Features
WY-75 Series aluminum casement window with 75MM frame width and 1.8MM profile thickness — select this profile system when wall openings require a 75MM frame depth.
Outward opening and awning configuration — choose this opening type when interior swing clearance must be preserved.
Style configurations include single sash, double sash, multi-panel assemblies, angled top designs, geometric shapes, and hexagonal windows — match the configuration to the architectural opening shape.
35 dB sound insulation rating — select this window when project acoustic specifications call for 35 dB noise reduction.
Upgraded profile rigidity satisfies stringent wind load standards of high-rise commercial buildings and super high-rise residences — specify this window for high-rise and super high-rise installations.
Standard DERCHI insulation strip paired with argon-gas-filled double tempered glass — choose this assembly when thermal insulation performance is a project requirement.
Customizable Styles
Glass configuration options include 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
Black Skin finish is the standard inventory color for immediate availability on standard orders
Project inputs that determine configuration: glass type, opening way, handle, hinge, and lock point
Opening way: outward opening or awning
Handle: customized baseless safety handle
Hinge: customized 12-inch heavy-duty hinge
Lock point and lock base: customized
Hardware Accessories
Hardware components are DERCHI developed and customized, including a baseless safety handle, a 12-inch heavy-duty hinge, and a lock point with lock base.
Handle options include ergonomic lever handles with two base style options.
The hinge system uses a stainless steel friction hinge with multiple pivot points.
A transmission mechanism is engineered for the WY-75 profile system.
All hardware components passed repeated cycle tests.
A 10-year product warranty covers hardware and accessories working properly under correct operation.
For handle base style and customized hardware specifications, confirm options per project.
Basic Parameters
Performance Dimension | Product Value & Guidance |
|---|---|
Thermal Insulation | Standard DERCHI insulation strip. Thermal performance should be compared using the declared rating, test method, specimen configuration, and project boundary conditions. Request the applicable thermal test or simulation report and the declared product configuration. |
Wind Pressure Resistance | Upgraded profile rigidity satisfies stringent wind load standards of high-rise commercial buildings and super high-rise residences. Wind pressure resistance should be reviewed against the specified test pressure, specimen size, anchorage, and acceptance criteria. Request the wind-pressure test report and confirm the tested specimen and installation conditions. |
Water Tightness | Water tightness should be reviewed against the test pressure, spray exposure, specimen configuration, and leakage criteria. Request the water-penetration test report and confirm the tested pressure and assembly configuration. |
Air Tightness | Air tightness should be reviewed against the pressure differential, specimen area, reporting units, and tested configuration. Request the air-leakage test report and confirm its pressure and specimen configuration. |
Sound Insulation | 35 dB. Sound insulation should be compared using the stated laboratory method, specimen construction, glazing, and reported acoustic metric. Request the acoustic test report and confirm that the tested construction matches the proposed configuration. |
Advantages
70,000+ m² manufacturing facility with 600+ employees and 15+ years of experience in aluminum windows and doors.
100% full inspection before shipment, documented in the supplier's own product specifications.
100+ national patents and 50+ industry honors; products meet NFRC, AS2047, and CE standards.
Custom color matching services for project-specific design requirements.
Engineering and supervising service available to guide installation.
One-stop customer service from ordering to shipment.
Can supply full window system (profile, hardware, accessories, glass) or finished products.
Application Scenarios
Project Category | Specific Project Types |
|---|---|
Commercial | High-rise commercial buildings, office buildings, hotels |
Residential | Super high-rise residences, high-end residential projects, villas |
FAQ
What must be confirmed technically?
Price is based on the buyer's specific requirements, including shop drawing or window schedule, frame color, and glass type, thickness, and color. The supplier can provide a full window system (profile, hardware, accessories, glass) or finished products. Custom color matching is available for project-specific design requirements.
What should buyers prepare for volume procurement?
Buyers should prepare the shop drawing or window schedule, frame color, and glass specifications before requesting a quote. Delivery takes 25 to 35 days after deposit and drawing confirmation. One-stop service from ordering to shipment is available.
Which test reports or certification documents must be confirmed for the project?
Products can be tested and certified if the buyer requires. Confirm the specific documentation needs with the supplier before placing an order.
What installation support is available?
Engineering and supervising service is available for installation guidance.
What warranty coverage is provided?
A 10-year quality warranty is provided.
