AS2047 / NFRC
Double Glazed
Low-E Acoustic
Engineered Fenestration Systems
Architectural Interior Aluminum Doors & Specialized Openings
Precision-fabricated utilizing aerospace-grade 6063-T5 and 6061 aluminum billets. Every model below incorporates thermal isolation barriers, acoustic lamination, and precision multi-point locksets tested to AS2047, NFRC, and CE standards.
Smart Security
Biometric Access
Reinforced Core
EOKO Villa Composite Stainless Steel Aluminum Entrance Door
Ventilation
Automated Jalousie
Airflow Control
Australian Standard Automated Aluminum Glass Louver System
Thermal Break
German Hardware
Polyamide Strip
Modern NFRC German Hardware Double Pane Tilt & Turn Aluminum System
Acoustic Class 4
Anti-Intrusion
NFRC Tested
AUMEGI American Standard Heavy-Duty Soundproof Aluminum Casement
Tempered Safe
Aluminum Frame
Architectural Slate
Tempered Architectural Jalousie Interior Louvre Window System
Integrated Blinds
Hygienic Sealed
Magnetic Control
Lukliving Internal Magnet-Actuated Blinds Casement Partition Door
Patio & Sliding
Double Glazed Low-E
Lift & Slide Tracks
Heavy-Duty Aluminum Double-Glazed French Interior Sliding Partition
Institutional Strength & Scale
DERCHI: Over 25 Years of Engineering Distinction in Foshan
Operating as Guangdong Dejiyoupin Doors and Windows Co., Ltd., DERCHI commands an expansive 180,000㎡ industrial complex in Nanhai District, Foshan. We merge German robotic extrusion fabrication with rigorous ISO9001 and AS2047 quality controls, standing as a verified partner for commercial developers, luxury villa contractors, and import distributors worldwide.
Aerospace-Grade Alloy Processing
We source virgin 6063-T5/T6 aluminum billets, completely avoiding recycled industrial scrap that causes micro-porosity and structural failure. Extrusions exceed minimum wall thicknesses (up to 3.0mm on load-bearing mullions) for maximum torsional rigidity.
- Tensile strength exceeding 160 MPa
- Precision CNC milling within ±0.1mm tolerances
- Multi-cavity profiles with acoustic dampeners
Hardware & Surface Metallurgy
Equipped with computerized electrostatic fluorocarbon (PVDF) and architectural anodizing production lines. We partner exclusively with world-renowned hardware manufacturers including Siegenia, Roto Frank, and HOPPE to guarantee 200,000+ cycle operating lifespans.
- AAMA 2605 compliant PVDF exterior finishes
- Micro-ceramic anodizing up to 25μm
- Concealed European-groove hinges
Full-Chain Traceability & Testing
Every production batch undergoes comprehensive laboratory testing for air infiltration, water penetration resistance, acoustic attenuation (STC/Rw rating), and seismic deflection. Complete mill test certificates and shop drawings are archived for warranty assurance.
- Australia AS 2047 N6 ultimate structural test
- NFRC thermal transmittance (U-factor < 1.4 W/m²K)
- Intertek verified acoustic testing up to 45 dB Rw
Engineering Specifications
Comparative Performance Standards for Interior Door Systems
Specifying the correct interior aluminum door configuration requires balancing sound attenuation, fire integrity, glass safety, and structural profile geometry.
| System Classification | Alloy & Wall Spec | Glazing Specification | Acoustic Rating (Rw/STC) | Compliance Standards | Ideal Application |
|---|---|---|---|---|---|
| Slimline Pivot Door | 6063-T6 / 2.0-3.0mm | 10mm/12mm Monolithic Toughened Low-Iron | 32 - 35 dB | CE / EN 12150 | Executive Boardrooms, Luxury Master Suites |
| Acoustic French Casement | 6063-T5 / 1.6-2.2mm | 6mm + 12A + 6mm Argon Low-E Double Insulated | 38 - 42 dB | AS2047 / NFRC | Home Cinemas, Conference Centers, Studios |
| Concealed-Pocket Sliding | 6061-T6 / 2.0mm Multi-Chamber | 5mm + 0.76PVB + 5mm Acoustic Laminated | 36 - 38 dB | ISO9001 / CE | High-End Hospitality En-Suites, Walk-In Closets |
| Internal Glazed Partition Door | 6063-T5 / 1.4-1.8mm | Double Glazed with Built-in Magnetic Louvers | 35 - 39 dB | CE / RoHS | Medical Clinics, Legal Offices, Luxury Residences |
| Fire-Rated Security Interior Door | Composite Steel-Aluminum / 2.5mm | Fire-Resistant Pyrobel / Solid Rockwool Core | 42 - 45 dB | UL 10C / EN 1634 | Safe Rooms, Hotel Corridor Entries, Data Centers |
Architectural Specification Insight (Information Gain)
When specifying aluminum interior doors for premium residential and commercial spaces, hollow-frame profiles are prone to acoustic flanking transmission. DERCHI solves this by incorporating multi-chamber acoustic baffling with high-density polyurethane dampening compounds, boosting interior speech privacy indices (Rw) by an average of 6 to 9 decibels compared to generic market competitors.
Industry Horizon
Future Technological Trends in Aluminum Interior Fenestration
Architectural interior design is undergoing a rapid evolution toward minimalist physical presences, biophilic material integration, and intelligent access systems. Sourcing directors must anticipate these paradigm shifts.
01
Micro-Slim Sightlines & Ghost Frames
Profile widths are shrinking from the traditional 50mm-75mm margins down to ultra-narrow 16mm-20mm visible sightlines. Concealed outer sub-frames are embedded directly into drywall and masonry, creating an uninterrupted floor-to-ceiling glass transition.
02
Concealed Smart Biometric Pivot Hardware
Traditional jamb hinges are increasingly superseded by floor-mounted hydraulic pivot mechanics capable of swinging panels exceeding 250kg effortlessly. Motors, power transfers, and facial/fingerprint sensors are integrated directly into the aluminum stiles.
03
Acoustic Decoupling & Laminated PVB Safety
With remote work and acoustic wellness becoming top architectural priorities, demand is surging for acoustic PVB interlayer glass paired with perimeter EPDM co-extruded magnetic drop seals that deploy automatically upon door engagement.
04
Low-Carbon Recycled Extrusion (BIM LOD 350)
Global developers demand documented environmental footprints. Leading Chinese mills are transitioning to hydro-powered smelting producing billets with carbon intensities below 4.0 kg CO2/kg Al, delivered with comprehensive BIM models for LEED v4 credits.
Global Procurement Advisory
How Commercial Specifiers Successfully Source From China
Navigating Chinese fenestration procurement requires an engineering-driven verification methodology to prevent dimensional errors, freight damage, and customs inspection delays.
1. Parametric Shop Drawing Sign-Off
Never authorize production based on architectural conceptual elevations alone. DERCHI provides complimentary, mill-accurate CAD/Revit shop drawings capturing wall rough opening (RO) tolerances, finished floor levels (FFL), hinge clearances, and structural anchor spacing.
2. Pre-Shipment Dry-Assembly QA
A rigorous factory pre-hang test is non-negotiable. At DERCHI, every custom interior door and frame system is fully erected on our test racks prior to crating. Squareness, mitre joints, magnetic gasket alignment, and lockset latching are verified and recorded via video.
3. Heavy-Duty Ocean Crate Engineering
Export damage is a primary hidden risk in overseas procurement. DERCHI encloses glass and profiles in fully enclosed, IPPC-fumigated plywood crates cushioned by high-density closed-cell EPE foam, desiccant packs, and moisture-barrier vacuum film to resist humidity.
Procurement FAQ
Frequently Asked Technical & Sourcing Questions
Direct answers to help project managers, procurement directors, and quantity surveyors mitigate risk and streamline project schedules.
Q1: How does DERCHI ensure dimensional accuracy for bespoke openings?
Our engineering team generates dedicated CAD production shop drawings reflecting exact finished wall and floor clearances. Aluminum profiles are cut on CNC double-mitre saws with digital precision to within 0.2mm, followed by pre-assembly inspections before glass insertion.
Q2: What surface finish is recommended for high-humidity coastal zones?
For high-humidity or coastal projects (such as luxury beach villas or hotel resort en-suites), we recommend architectural Class 1 fluorocarbon PVDF coating (3-coat system) or 20-25 micron anodized finishes certified to resist 3,000+ hours of continuous neutral salt spray (NSS).
Q3: Can DERCHI supply compliant glass certifications for USA and Australia?
Yes. All glass configurations integrated into our interior doors carry genuine compliance markings and test certs for AS/NZS 2208 (Australia/New Zealand), ANSI Z97.1 / CPSC 16 CFR 1201 (USA), and CE EN 12150 (Europe). We provide documentation with all shipping manifests.
Q4: What is the typical production lead time and MOQ for custom projects?
Our standard production cycle is 25 to 35 business days following shop drawing sign-off and color chip approval. As a true factory direct manufacturer, our minimum order quantity (MOQ) is highly flexible: we support single villa custom schedules as well as 500+ unit multi-family tenders.
Q5: Can interior doors and exterior windows be consolidated in one container?
Yes. As a comprehensive fenestration manufacturer, DERCHI frequently consolidates interior doors, exterior folding sliding systems, entry doors, and automated garage doors in a unified 40ft HQ container, significantly reducing logistics and customs handling overhead.
Q6: How is technical installation supported on the job site overseas?
Each unit ships with an indexed sub-frame numbering scheme corresponding to our step-by-step CAD installation guides. Furthermore, our senior English-speaking engineering team provides real-time video conference installation support tailored to your local working hours.