High Quality 6000 Series Alloy Aluminium Window Door Frames T3-T8 Temper 1% Tolerance Customized Shape Cutting/Welding
Primary 6063-T5/T6 billet extrusions for structural perimeter stability.
Engineered to withstand rigorous international wind loads, salt-mist coastal environments, and severe thermal parameters. Direct custom fabrication supported by full CAD/BIM approvals.
Primary 6063-T5/T6 billet extrusions for structural perimeter stability.
Versatile architectural panelling for balcony spandrels and dry-wall cladding.
Ultra-slim visual sightlines delivering maximum natural daylight penetration.
Multi-cavity thermal break extrusions engineered for high condensation resistance.
Heavy-duty bottom-running stainless rollers for wide panoramic openings.
Cast structural reinforcement with multi-point automated hardware integration.
Architectural heritage styling featuring structural internal glazing beads.
Multi-chambered polyamide insulation achieving acoustic dampening up to 42 dB.
Operating as Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI), our production complex in Foshan represents over 25 years of specialized structural fenestration expertise for international markets.
Every profile is extruded from 100% primary 6063/6061-T5/T6 architectural aluminium alloy billets, strictly excluding contaminated scrap remelt to eliminate internal porosity.
DERCHI systems pass Australia AS 2047 cyclonic testing at N6 level, CE harmonized codes, ISO 9001 quality standards, and UL fire ratings to support immediate site submittals.
Our dedicated engineering center transforms architectural specifications and door/window schedules into millimetre-precise CAD shop submittals within 48 to 72 hours.
Cross-border supply chains require clear technical clarity. Our dedicated overseas sales engineers support client operations across US/Canada, Australia, and UK business hours.
Architects and structural engineers across North America, Australasia, and Europe have heightened fenestration baselines. Sourcing directly from an integrated OEM/ODM partner mitigates long-term compliance exposure.
Modern building envelope codes mandate U-factors below 0.28 BTU/(hr·ft²·°F) [equivalent to Uw ≤ 1.6 W/(m²·K)]. Multi-cavity PA66 polyamide barriers reinforced with 25% glass fibre have replaced older non-thermal profiles to prevent condensation run-off and perimeter energy loss.
Architectural designs are rapidly migrating from independent exterior railings toward zero-sightline drop-in glass balustrades built directly within the window track, optimizing structural wind load resistance while streamlining exterior cladding work.
Global developers increasingly reject generic industrial finishes in marine zones. Standard procurement specifications now explicitly mandate Qualicoat Class 2 hyper-durable architectural powder coatings or 25-micron hard-anodizing to withstand 3,000+ hours of continuous salt-spray exposure.
| Performance Criterion | Legacy Residential Standard | DERCHI Commercial High-Rise Baseline | Engineering Value-Add |
|---|---|---|---|
| Aluminium Alloy Profile | Standard Recycled Billet (1.2mm wall) | Primary 6063-T6 Pure Ingot (≥ 2.0mm - 3.0mm) | Zero warping under cyclic positive/negative pressures up to 4500 Pa |
| Thermal Decoupling | Poured resin or unreinforced PVC strip | PA66 GF25 Polyamide Multi-Cavity Barriers | Eliminates internal condensation; delivers U-values down to 1.1 W/(m²·K) |
| Wind Pressure Rating | Level 3 (1500 - 2000 Pa) | AS 2047 Class N6 / Cyclonic (> 4500 Pa) | Safe for 40+ floor high-rise residential & hurricane-prone coastal regions |
| Water Penetration Barrier | Wool-pile slide gaskets (< 250 Pa) | Vulcanized EPDM Triple-Sealing Systems (> 700 Pa) | Zero water penetration during monsoon winds and continuous horizontal rain |
| Hardware Cycle Life | Standard Zinc Castings (10,000 cycles) | 304/316 SS Heavy-Duty Hardware (100,000+ cycles) | Maintenance-free operation for oversized panoramic sash loads up to 400kg |
The window is no longer a static building element. High-rise developments and luxury villas demand integrated kinetic, acoustic, and smart building interfaces.
Concealed 24V DC brushless motorization drives flush sliding and parallel-opening balcony panels. Integrated directly into central building management systems (BMS), systems adjust automatically based on internal air quality and external weather alerts.
Meeting dense urban acoustic challenges without compromising interior air changes. DERCHI labs have engineered labyrinth ventilation cavities with sound-dampening acoustic baffles, dropping exterior street noise by up to 35 dB while maintaining steady passive airflow.
Transitioning toward industrial 4.0 production environments, DERCHI employs German 5-axis CNC machining centers that guarantee milling precision within 0.1mm across corner keys, drainage channels, and hardware pockets, ensuring rapid site assembly.
Direct technical answers addressing shop submittals, testing credentials, logistics packaging, and custom project execution.
All structural extrusions are tested against ASTM E283, E330, and E331 methods for air, water, and structural performance, alongside Australia AS 2047 N6 credentials. Comprehensive test reports from independent accredited laboratories are submitted with your project shop drawings to satisfy municipal building inspectors.
Engineering submittals and full CAD fabrication layouts take 3 to 5 business days. Once final approvals are locked, extrusion cutting, CNC milling, powder-coating, assembly, and testing run on a 25 to 35-day manufacturing cycle depending on project container volumes.
Yes. Over 60% of our production volume is engineered for the North American market. We review your door and window schedules in inches or millimetres and output dual-dimensioned CAD shop drawings illustrating sill pans, nail flanges, and subframe details.
Panels are packaged using multi-layer surface peel coats, custom corner guards, high-density polyethylene foams, and crated inside fully-enclosed, fumigated IPPC-certified solid timber crates. Every container is systematically arranged using internal strapping to withstand rough marine voyages.
Yes. While we supply standard German systems (Siegenia, Hoppe, Roto) and our proprietary certified hardware, profiles can be custom CNC-routed to accept local multipoint locks or European cylinder configurations specified by your project security schedule.
We welcome third-party technical inspection teams (SGS, Intertek, TÜV) to verify manufacturing, testing, and pre-shipment packing. Additionally, our 360-degree online factory VR portal offers continuous visibility into our 180,000 square meter Foshan manufacturing base.