





The 900 x 1500 aluminium casement window features a 1.8 mm profile thickness with outward opening operation, suited for buyers managing commercial, residential, hotel, and office building projects.
- Multi-cavity frame structure and high-performance sealed glazing system
- Custom color matching services for project-specific design requirements
- Manufactured in a 70,000+ m² facility with 100% full inspection before shipment
- Products meet NFRC, AS2047, and CE standards, with additional testing available upon request
Product Details
The 900 x 1500 aluminium window is an aluminum casement window built with a 1.8 mm thick profile, a 75 mm frame width, and a multi-cavity frame structure paired with a high-performance sealed glazing system. The double tempered glass unit uses argon gas with a 5mm+20A+5mm configuration separated by a PVDF aluminum strip, and a DERCHI insulation strip is integrated into the frame. The window operates with an outward opening or awning motion, supported by a customized 12-inch heavy-duty stainless steel friction hinge with multiple pivot points, a customized baseless safety handle, and a customized lock point and lock base. Transmission components are engineered specifically for the WY-75 profile system, and all hardware components are DERCHI developed and customized. The production process spans seven steps from surface treatment through profile processing, glass cutting and aluminum strip installation, opening fan installation, frame and casing assembly, debugging and sealing, to final packing.
Procurement teams should confirm the glass configuration before selection, as seven options are available including single, double, triple, laminated, and frosted glass variants, with specific setups such as 5 mm+27A+5 mm and 5 mm+12A+5 mm+12A+5 mm offered alongside the standard 5mm+20A+5mm double tempered unit. The Black Skin finish is maintained as standard inventory color for immediate availability on standard orders, while ergonomic lever handles offer two base style options and lock points and lock bases are customized to project requirements. A 10-year product warranty covers frame non-fading and non-peeling as well as proper hardware and accessory operation under correct use, and additional testing and certification beyond the current NFRC, AS2047, and CE compliance is available upon request. Delivery time runs 25-35 days after deposit and drawing confirmation, and the factory can supply the complete window system including profile, hardware, accessories, glass, and finished products ready for installation.
Product Features
WY-75 Series aluminum casement window with 75MM frame width and 1.8MM profile thickness — select for projects requiring upgraded profile rigidity to satisfy stringent wind load standards of high-rise commercial buildings and super high-rise residences.
Outward opening / awning configuration — choose when interior swing space must be preserved or rain-day ventilation is needed.
35 dB sound insulation — specify when acoustic separation from external noise is a project requirement.
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.
Multi-cavity frame structure with high-performance sealed glazing system and standard DERCHI insulation strip — select this thermal break configuration when energy performance is specified.
Double tempered glass with argon gas and PVDF aluminum strip between panes — choose this glazing assembly for combined thermal and safety performance.
DERCHI-developed hardware including customized baseless safety handle, 12-inch stainless steel friction hinge with multiple pivot points, and customized lock point and lock base — select when project specifications require hardware that has passed repeated cycle tests.
Ergonomic lever handles developed in-house with two base style options — choose the base style to match the project hardware aesthetic.
10-year warranty covering frame unfading/peel-off and hardware and accessories working properly under correct operation — factor this term into lifecycle planning.
Customizable Styles
Glass configuration: seven available options including single, double, triple, laminated, and frosted glass variants
Finish: Black Skin maintained as standard inventory color for immediate availability on standard orders
Opening direction: outward opening or awning
Handle: customized baseless safety handle
Hinge: customized 12-inch heavy-duty stainless steel friction hinge
Lock point: customized lock point and lock base
Hardware Accessories
Handle: customized baseless safety handle, DERCHI developed in-house with two base style options
Hinge: customized 12-inch heavy-duty hinge, 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
10-year product warranty covers hardware and accessories working properly under correct operation
Handle base style selection requires project-specific confirmation
Basic Parameters
Performance Dimension | Product Value | Meaning & Evidence to Request |
|---|---|---|
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 and overall structural stability satisfy 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 | Confirm the required water tightness rating and supporting test report for the target project | 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 | Confirm the required air tightness rating and supporting test report for the target project | 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. |
Product Specifications
Specification | Value |
|---|---|
Glass | Double Tempered Glass with argon gas, 5mm+20A+5mm with PVDF Aluminum Strip |
Profile Thickness | 1.8MM |
Frame Width | 75MM |
Handle | Customized safety handle without base plate |
Hinge | Customized 12-inch heavy-duty hinge, stainless steel friction hinge |
Lock Point | Customized lock point and lock base |
Insulation Strip | Standard DERCHI insulation strip |
Opening Way | Outward Opening / Awning |
Sound Insulation | 35 dB |
Warranty | 10 years |
Delivery Time | 25-35 days after deposit and drawing confirmed |
Confirm opening direction: outward opening or awning
Select glass configuration from available options including single, double, triple, laminated, and frosted variants
Confirm frame finish color; black skin finish is standard inventory
Provide confirmed installation drawings with project dimensions
Confirm order quantity
Advantages
70,000+ m² factory with 600+ employees manufactures aluminum window systems at scale.
100% inspection before shipment checks each window unit against specification.
NFRC, CE, AS2047, CSA, and ISO9001 certifications document product compliance.
Additional testing and certification available upon buyer request for project-specific requirements.
Custom color matching services align frame finishes with project-specific design requirements.
In-house hardware development supports OEM/ODM custom component requirements.
Engineering and on-site supervision service for installation.
Customer service from ordering to shipment.
15+ years of experience in aluminum windows and doors.
Application Scenarios
Project Type | Evidenced Fit | Conditions to Confirm Before Specification |
|---|---|---|
High-rise commercial buildings | Evidenced application | Local building code compliance; structural opening compatibility |
Super high-rise residences | Evidenced application | Local building code compliance; structural opening compatibility |
Hotels | Evidenced application | Project-specific color matching requirements |
Office buildings | Evidenced application | Local building code compliance; structural opening compatibility |
High-end residential projects | Evidenced application | Project-specific color matching requirements |
Villas | Evidenced application | Project-specific color matching requirements |
Exterior applications | Evidenced application | Local building code compliance; structural opening compatibility |
USA projects including Las Vegas | Evidenced application | Local building code compliance; structural opening compatibility |
FAQ
What must be confirmed technically?
The window system supply includes profile, hardware, accessories, and glass. Pricing is determined by the buyer's specific requirements, including shop drawing or window schedule, frame color, and glass type, thickness, and color.
What should buyers prepare for volume procurement?
Buyers should prepare the shop drawing or window schedule and arrange the deposit, as delivery takes 25 to 35 days after both deposit and drawing are confirmed. One-stop customer service covers the process from ordering to shipment.
Which test reports or certification documents must be confirmed for the project?
Additional testing and certification are available upon buyer request. Buyers should specify their project's required test reports and certification documents during the ordering stage.
What warranty coverage applies to the window system?
A 10-year quality warranty applies to the window system.

