The round window aluminium is an aluminum casement window for hotels, office buildings, and high-end residential projects. It combines a multi-cavity frame structure with a high-performance sealed glazing system and meets NFRC, AS2047, and CE standards, with additional testing and certification available upon request.
- Outward opening / awning configuration with custom color matching services for project-specific design requirements
- 10-year product warranty provided
- Manufactured in a 70,000+ sqm facility with 600+ employees and 200,000+ successful cases delivered
Product Details
The round window aluminium is built as an aluminum casement window using the WY-75 series profile with 1.8mm wall thickness and a 75mm frame width, assembled through a multi-cavity frame structure paired with a high-performance sealed glazing system. The standard glass unit is double tempered glass with argon gas in a 5mm+20A+5mm configuration separated by a PVDF aluminum strip, and the sash operates via outward opening or awning action. DERCHI-developed hardware includes a stainless steel friction hinge with multiple pivot points, ergonomic lever handles available in two base style options, and a customized lock point and lock base, with all transmission components engineered specifically for the WY-75 profile system. The production sequence covers surface treatment, profile processing and cutting, glass cutting and aluminum strip installation, opening panel installation, frame and casing assembly, troubleshooting and sealing, and packing, with all hardware components having passed repeated cycle tests.
Procurement teams can select from seven glass configuration options including single, double, triple, laminated, and frosted variants, with specific builds such as 5MM+27A+5MM and 5MM+12A+5MM+12A+5MM available, and a Black Skin finish maintained as standard inventory color for immediate availability on standard orders. The supplier can provide the complete window system including profile, hardware, accessories, glass, and finished products ready for installation, with delivery at 25-35 days after deposit and drawing confirmation, backed by a 10-year quality warranty covering frame color retention and proper hardware operation under correct use. Products meet NFRC, AS2047, and CE standards with additional testing and certification available upon request, and every unit undergoes 100% full inspection before shipment, with engineering and supervising service provided to guide installation. Buyers should confirm glass configuration, finish color, and opening direction before finalizing specifications.
Product Features
- WY-75 Series Aluminum Casement Window by DERCHI supports single sash units, double sash combinations, multi-panel assemblies, angled top designs, geometric shapes, and hexagonal windows — select assembly type based on opening dimensions and architectural shape.
- Opening way is outward opening or awning — choose outward swing when inward clearance is limited or awning when rain-protected ventilation is needed.
- Profile thickness of 1.8 mm and frame width of 75 mm — match these dimensions to structural opening sizes when specifying for high-rise projects.
- Sound insulation rated at 35 dB — specify for projects requiring acoustic separation from external noise.
- Hardware is DERCHI-developed and customized, including stainless steel friction hinge with multiple pivot points, 12-inch heavy-duty hinge, baseless safety handle with two base style options, and lock point with lock base — configure hardware set based on sash weight, security, and operator preference.
- Standard DERCHI insulation strip with multi-cavity frame structure and high-performance sealed glazing system — select for thermal separation in climates with temperature variation.
- Double tempered glass with argon gas and PVDF aluminum strip between glass — specify glass configuration based on thermal and safety requirements.
Customizable Styles
- Glass configuration options include single, double, triple, laminated, and frosted glass variants
- Standard glass specification: double tempered glass with argon gas, 5mm+20A+5mm, with PVDF aluminum strip between panes
- Alternative glass spacings include 5MM+27A+5MM and 5MM+12A+5MM+12A+5MM configurations
- Black Skin finish maintained as standard inventory color for immediate availability on standard orders
- Opening way configurable as outward opening or awning
- Hardware customizable: baseless safety handle, 12-inch heavy-duty hinge, and lock point with lock base
Hardware Accessories
- DERCHI-developed and customized hardware components include a baseless safety handle, a 12-inch heavy-duty hinge, and a lock point with lock base.
- Stainless steel friction hinge with multiple pivot points for the casement opening mechanism.
- Ergonomic lever handles are developed in-house and offered with two base style options.
- Transmission mechanism components are engineered for the WY-75 profile system, defining the hardware-to-profile compatibility boundary.
- DERCHI insulation strip is integrated into the hardware and frame system.
- All hardware components have passed repeated cycle tests.
- The lever handle base style selection requires project-specific confirmation.
Basic Parameters
| Performance Dimension | Product Value / Status | Evidence to Request |
|---|---|---|
| Thermal Insulation | Standard DERCHI insulation strip is used. 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 | Requires testing. 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 | Requires testing. 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 | Sound insulation is rated at 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, PVDF Aluminum Strip between double glass |
| Profile Thickness | 1.8mm |
| Frame Width | 75mm |
| Opening Way | Outward Opening / Awning |
| 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 |
| Warranty | 10 years |
| Delivery Time | 25-35 days after deposit and drawing confirmed |
- Opening diameter and total quantity per size
- Glass configuration selection from seven available options including single, double, triple, laminated, and frosted variants
- Color or finish specification
- Hardware customization details for handle, hinge, and lock point
- Approved production drawings
- Deposit arrangement
Advantages
- 15+ years of aluminum window and door manufacturing experience
- 70,000+ sqm factory with 600+ employees and 600,000+ sqm annual output
- 200,000+ successful cases delivered
- 100% full inspection before shipment
- Authorized by NFRC, CE, AS2047, CSA, and ISO9001
- 100+ national patents with a 20+ expert R&D team
- Custom color matching services for project-specific design requirements
- Engineering and supervising service for installation guidance
- One-stop customer service from ordering to shipment
- Global project experience in 100+ countries with 700+ distributors
- Additional testing and certification available upon buyer request
- OEM/ODM cooperation based on factory capabilities
- 10-year quality warranty
- Own-product specifications including 1.8mm profile thickness document the supplier's manufacturing parameters
Application Scenarios
| Scenario | Fit Basis | Confirm Before Specification |
|---|---|---|
| Hotels | Suitable for hotels | Custom color matching for project-specific design |
| Office buildings | Suitable for office buildings | Custom color matching for project-specific design |
| High-end residential projects | Suitable for high-end residential projects | Custom color matching for project-specific design |
| Villas | Application includes villas | Custom color matching for project-specific design |
| High-rise commercial buildings | Application includes high-rise commercial buildings | Local wind conditions for the installation height |
| Super high-rise residences | Application includes super high-rise residences | Local wind conditions for the installation height |
| Exterior applications | Applications include exterior scenarios | Custom color matching for project-specific design |
| High-altitude and strong-wind environments | Application includes high-altitude and strong-wind environments | Local wind conditions for the installation environment |
| Urban traffic noise isolation | Application includes urban traffic noise isolation | Ambient noise conditions at the project site |
| Industrial noise isolation | Application includes industrial noise isolation | Ambient noise conditions at the project site |
FAQ
What must be confirmed technically before a quote can be issued?
Buyers must provide drawings, color requirements, and glass type, as pricing is based on these specific project requirements. A Black Skin finish is held in standard inventory for immediate availability on standard orders, while custom color matching is available for project-specific design needs.
What is included in the window system supply?
The window system supply includes the profile, hardware, accessories, and glass, delivered as finished products ready for installation.
Can custom diameters be ordered outside standard stock sizes?
Custom dimensions are produced based on buyer-supplied drawings and specifications, so non-standard diameters can be manufactured to project requirements.
What is the delivery lead time?
Delivery is 25–35 days after deposit and drawing confirmation.
What warranty is provided?
A 10-year quality warranty is provided.
What quality control is performed before shipment?
100% full inspection is conducted before shipment.
Is OEM/ODM cooperation available?
The product is suitable for OEM/ODM cooperation based on factory capabilities.
Is installation guidance provided?
Engineering and supervising service is provided for installation guidance.
What should buyers prepare for volume procurement?
Buyers should prepare project drawings, color specifications, and glass type requirements to receive accurate pricing. A deposit and confirmed drawings are required to initiate the 25–35 day production cycle. One-stop customer service from ordering to shipment is provided, and the supplier has global project experience in over 100 countries.
