South Africa aluminium windows are aluminium casement windows from DERCHI that meet NFRC, AS2047, and CE standards. The outward opening / awning configuration suits project teams and distributors reviewing aluminium window systems for South African residential and commercial applications requiring outward-venting operation.
- South Africa aluminium windows from DERCHI are backed by 200,000+ successful cases and trade across more than 100 countries
- 600+ employees and 70,000+ m² factory with annual output of 600,000+ m²
- 100% full inspection before shipment with one-stop customer service from ordering to shipment
Product Details
The DERCHI aluminum casement window is built with a 1.8mm aluminum profile at 118mm frame width, incorporating a DERCHI insulation strip and double tempered glass with argon gas (5mm+27A+5mm) separated by a PVDF aluminum strip. The sash operates via outward opening or awning action, controlled by a WEHAG handle in black or silver, supported by a WEHAG hinge and a 13-inch flat open friction hinge independently developed by DERCHI, with locking handled by a WEHAG lock point and lock seat system using a six-point mechanism. Production follows a seven-stage process: surface treatment, profile processing and cutting, glass cutting and aluminum strip installation, opening panel installation, frame and casing assembly, troubleshooting and sealing, and packing.
Procurement teams should confirm glass type from seven available configurations (single, tempered, double-glazed, triple, insulating, laminated, and frosted), select one of ten layout configurations combining fixed panels, casement sashes, and awning openings, and specify color finish from two PVDF options or ten stock color options before requesting a quote. Products meet NFRC, AS2047, and CE standards, delivery time is 25-35 days after deposit and drawing confirmation, and a 10-year quality warranty covers frame color retention and hardware operation under correct use.
Product Features
- WY-118L model with 118mm frame width — affects wall opening depth and structural compatibility during specification.
- 1.8mm profile thickness — determines the frame strength tier for wind-load selection.
- Outward opening / awning configuration — informs placement where inward swing would obstruct interior space.
- WEHAG handle available in black, silver, and antique bronze — sets hardware finish coordination for design matching.
- Black six-point lock with invention patent — defines the security locking level for the specification.
- 13-inch flat open friction hinge independently developed by DERCHI — determines sash operation stability for wind-exposed openings.
- Double tempered argon-filled glass (5mm+27A+5mm) — sets the acoustic and thermal glazing tier.
- PVDF color finish options — define exterior color matching for project facade aesthetics.
- DERCHI-customized transmission box for WY-118L — sets the hardware integration scope for the window system.
Customizable Styles
- Color finishes: two PVDF options (Retro Green, Mint Gold) and ten stock color options ranging from wood-grain textures to solid metallic and matte finishes.
- Glass configurations: seven options available — single, tempered, double-glazed, triple, insulating, laminated, and frosted glass.
- Layout configurations: ten customizable layouts combining fixed panels, casement sashes, and awning openings.
- Opening way: outward opening or awning.
- Handle finish: WEHAG handle available in Black or Silver.
- Optional packaging: New 48 Pack or New 88 Pack.
- Default glass specification: double tempered glass with argon gas, 5mm+27A+5mm, with PVDF aluminum strip between panes.
Hardware Accessories
- WEHAG handle in black and silver finishes, with a standard no-base variant offering black, silver, and antique bronze options
- WEHAG hinge paired with a 13-inch flat open friction hinge independently developed by DERCHI for stable outward sash operation
- Black Six Point Lock with invention patent, integrated with the WEHAGE lock point and lock seat system for six-point locking
- DERCHI customized transmission box and independently developed handle designs available for project-specific hardware configurations
- Hardware and accessories confirmed for proper operation under correct use, with frame unfading and no peel-off over a 10-year quality period
Basic Parameters
| Performance Dimension | Product Value | Meaning & Test Method | Evidence to Request |
|---|---|---|---|
| Thermal Insulation | U-factor 0.23; SHGC 0.20; 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 | 5K Pa | 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 | 700Pa | 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 | 1.2 m³/(m·h) | 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+27A+5mm, PVDF Aluminum Strip between double glass |
| Profile Thickness | 1.8mm |
| Frame Width | 118mm |
| Handle | WEHAG Handle in Black and Silver |
| Hinge | WEHAG Hinge |
| Lock Point | Black Six Point Lock (Invention patent) |
| Insulation Strip | Standard DERCHI insulation strip |
| Opening Way | Outward Opening / Awning |
| Optional Package | New 48 Pack / New 88 Pack |
| Warranty | 10 years quality warranty |
| Delivery Time | 25-35 days after deposit and drawing confirmed |
- Glass configuration selection (from seven available options: single, tempered, double-glazed, triple, insulating, laminated, frosted)
- Color finish selection (two PVDF options and ten stock color options)
- Layout configuration selection (from ten customizable configurations)
- Package preference (New 48 Pack or New 88 Pack)
- Confirmed drawings (required before production begins)
- Deposit (required before production begins)
Advantages
- 15+ years of experience in aluminum windows and doors manufacturing, with a 70,000+ m² factory, 4,000 m² showroom, and 600+ employees.
- 600,000+ m² annual output from a production base that has completed 200,000+ project installations.
- 100% full inspection before shipment to control quality on every order.
- Authorized by NFRC, CE, AS2047, CSA, and ISO9001, with 100+ national patents including invention patents.
- In-house R&D team of 20+ specialists for custom window system development.
- Single-source supply capability for complete window systems reduces multi-vendor coordination risk.
- DERCHI provides engineering and supervising service to guide installation on site, reducing project execution risk.
- One-stop customer service from ordering to shipment, backed by a 10-year quality warranty.
- DERCHI operates the 70,000+ m² manufacturing facility and 600+ employees that back these supplier capabilities.
Application Scenarios
| Scenario | Fit Basis | Confirm Before Specification |
|---|---|---|
| Coastal or high-precipitation commercial buildings | Evidenced for commercial buildings in coastal or high-precipitation regions. | Confirm coastal-grade coating thickness of 80–120 microns is specified for the project's corrosion-exposure zone. |
| High-rise commercial structures | Evidenced for high-rise commercial structures. | Confirm wind-load rating and glazing specification match the building height and structural requirements. |
| Buildings near traffic corridors | Evidenced for buildings located near traffic corridors. | Confirm acoustic glazing configuration and frame sealing meet the project's noise-reduction target. |
| Commercial facilities with energy efficiency needs | Evidenced for commercial facility management with energy efficiency needs. | Confirm SANS 10400 XA compliance and glazing type align with the project's energy-performance requirements. |
| Apartments and residential buildings | Evidenced for apartments and residential buildings. | Confirm opening type, size, and finish match the residential unit's ventilation and aesthetic requirements. |
| Office buildings | Evidenced for office buildings. | Confirm frame profile and glazing selection meet the office's daylighting and thermal-comfort criteria. |
| Hotels | Evidenced for hotels. | Confirm hardware grade and finish durability suit hospitality-level usage frequency. |
| Villa projects and whole-house customization | Evidenced for villa projects and whole-house customization projects. | Confirm custom dimensions, finish, and hardware configuration are finalized before production. |
| Home offices | Evidenced for home offices. | Confirm opening configuration and glazing suit the room's ventilation and noise needs. |
| Exterior applications | Evidenced for exterior applications. | Confirm weather sealing, drainage, and coating specification match the exposure conditions. |
FAQ
What must be confirmed technically before production begins?
Shop drawings or window schedules must be confirmed, along with frame color, glass type, glass thickness, glass color, and whether argon filling is required, as pricing is based on these specific requirements.
What should buyers prepare for volume procurement?
The window system can be supplied as a complete package including profile, hardware, accessories, and glass, or as finished products, so buyers should specify their preferred supply scope when requesting a project quote.
What is the delivery time after order confirmation?
Delivery time is 25-35 days after the deposit is received and drawings are confirmed.
What warranty is provided?
A 10-year quality warranty is provided.
Can additional certifications be arranged?
Products can be tested and certified if the buyer requires additional certifications.
What packaging options are available?
Optional packaging includes New 48 Pack or New 88 Pack.
What quality control is performed before shipment?
100% full inspection is performed before shipment.
