Featured Wholesale Aluminum Internal & Architectural Door Systems
Engineered for superior sound attenuation, high-cycle durability, and modern minimalist aesthetics. Explore our precision-manufactured configurations ready for global commercial, hospitality, and luxury residential projects.
Scale, Precision, and E-E-A-T Manufacturing Authority
Backed by Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI), operating from the heart of the Pearl River Delta industrial cluster in Foshan, China. Delivering verified metallurgical superiority and institutional-grade output for global supply chains.
Aviation-Grade Alloy Extrusions
We utilize virgin primary aluminum 6063-T5 and 6063-T6 billets, completely free of scrap contaminants. This guarantees a tensile strength exceeding 160 MPa and yield strength over 110 MPa for extreme warp resistance under heavy humidity.
Proprietary Multi-Point Locks
Equipped with our patented Four-Side Six-Point Lock mechanism, ensuring continuous peripheral gasket compression that provides an airtight, burglar-resistant seal superior to conventional latch-based internal doors.
360° Zero-Defect QA Workflow
From spectrographic analysis of raw extrusions to five-axis CNC machining centers and 200,000-cycle mechanical fatigue testing, each door leaf is verified floor-by-floor against client-approved shop drawings.
Comprehensive Certifications
Certified across North American, European, and Australian building codes, including CE (EN 14351-1), NFRC, AS2047, CSA, Florida NOA impact standards, and ISO 9001 quality management benchmarks.
Metallurgical & Acoustic Engineering Whitepaper
Unlike standard residential internal doors, modern commercial and luxury multi-family developments demand structural stability, moisture impermeability, fire containment, and acoustic seclusion. Our aluminum interior door profiles are systematically engineered to surpass these metrics.
1. Slim Profile Wall Thickness
Standard market profiles operate between 1.0mm and 1.2mm, leading to frame flexion and lock misalignment over time. DERCHI interior door jambs and stiles are engineered with minimum wall thicknesses of 1.4mm to 2.0mm, accommodating oversized floor-to-ceiling heights up to 3,200mm without structural warping.
2. Acoustic Decoupling (STC 32-42 dB)
Noise pollution disrupts occupant wellness in residential complexes and executive suites. We employ dual-chamber multi-cavity extrusion geometry integrated with continuous cellular EPDM co-extruded gaskets and acoustic laminated glass (PVB/SGP interlayers) to achieve calibrated Sound Transmission Class ratings up to 42 dB.
3. Surface Finishing Technologies
Surfaces are treated with Qualicoat-certified fluorocarbon powder coatings, multi-stage electro-anodizing (Class 15/25), or physical vapor deposition (PVD). This provides zero maintenance, 100% rustproof resistance in high-humidity wet zones (restrooms, saunas), and uncompromised surface hardness.
| Performance Parameter | DERCHI Wholesale Standard | Common Factory Grade | Testing Protocol / Norm |
|---|---|---|---|
| Alloy Base & Temper | Primary 6063-T6 Virgin Billet | Recycled / Secondary Scrap 6063 | GB/T 5237 / ASTM B221 |
| Frame Profile Thickness | 1.6mm - 2.0mm Structural Reinforcement | 1.0mm - 1.2mm Thin Wall | Ultrasonic Micrometer Verification |
| Acoustic Rating (Rw / STC) | 35 dB - 42 dB (Glazed / Solid Core) | 22 dB - 26 dB (Unsealed hollow) | ISO 10140-2 / ASTM E90 |
| Surface Coating Hardness | ≥ 2H (Pencil Hardness test) | ≤ H (Prone to scratching) | ASTM D3363 / Qualicoat Standard |
| Hardware Cycle Longevity | Tested to 200,000 Opening Cycles | 50,000 Opening Cycles | EN 12209 / ANSI A156.1 |
| Moisture Absorption Index | 0.00% (Zero Rot, Zero Termite Swell) | Engineered Wood: 8% - 15% | Immersion Gravimetric Analysis |
B2B Procurement Trends Shaping Interior Glazing & Doors
Strategic insights for real estate developers, architectural procurement directors, and building material distributors sourcing wholesale doors from China over the next 5-year cycle.
Ultra-Narrow Sightlines & Ghost Frames
Architectural preferences have shifted toward zero-frame or concealed pocket designs where the perimeter extrusion embeds flush into the drywall. Sightlines under 16mm deliver uninterrupted spatial transparency while maintaining strict acoustic performance.
Switchable Smart Privacy Glass Integration
Rapid integration of PDLC (Polymer Dispersed Liquid Crystal) privacy glass into internal aluminum swinging and bifold frames. Commercial conference rooms and hospitality en-suites transition from optically clear to opaque in milliseconds via wall switches or BMS networks.
Prefabricated Dry-Installation Sub-Frames
To eliminate job-site labor inflation in the US, Europe, and Australia, wholesale procurement increasingly specifies factory-mitered two-piece adjustable sub-frames. This dry-fit system reduces on-site fitting duration by 60% with zero wet plastering needed.
Frequently Asked Questions for Global Wholesalers & Specifiers
Clear, transparent technical guidelines addressing shipping, quality verification, customization limits, and lead times directly from our Foshan engineering desk.
For standard profile systems and architectural finishes (Matte Black, Architectural Bronze, Anodized Silver), our minimum order quantity starts at 20 to 50 sets or a single 20GP container. For bespoke custom extrusion dies or unique RAL color matches, our engineering threshold is 100 sets or 500 square meters.
Aluminum internal doors eradicate the lifecycle costs associated with solid core wood: zero swelling from fluctuating humidity, zero maintenance repainting, and complete resistance to termite degradation. Additionally, aluminum delivers comparable acoustic insulation (STC 35-42 dB) at nearly 30% reduced door leaf weight, minimizing structural hinge sag over hundreds of thousands of cycles.
Every door leaf and frame assembly undergoes a 4-tier packaging protocol: (1) Low-tack electro-static protective film across all anodized/powder surfaces; (2) Closed-cell pearl cotton foam wraps; (3) Heavy-duty corner edge guards; and (4) Fumigation-free solid plywood crates engineered with internal moisture desiccants and shock-absorbing rubber runners.
Yes. Our in-house technical department of 30+ R&D engineers interfaces directly with AutoCAD, Revit, and SolidWorks. Before production begins, we generate full 1:1 shop drawings showing structural anchors, jamb returns, threshold clearances, and hardware cutouts for architect sign-off.
Standard manufacturing turnarounds for standard residential doors are 25 to 35 calendar days following technical drawing confirmation and deposit receipt. Customized structural profiles require 40 days. Being situated adjacent to Guangzhou and Shenzhen container ports allows us to clear customs and execute ocean loading within 48 hours of packaging.
Yes. We integrate heavy-duty concealed bi-directional damper systems capable of smoothly absorbing door panels weighing up to 150 kg without rebounding. Track systems incorporate precision-ground sealed stainless steel ball bearings rated for silent movement under 25 decibels.
Request a Direct Wholesale Quote & Technical Schedule
Partner with China’s premier wholesale aluminum doors and windows exporter. Submit your project door schedules, elevation drawings, or bill of materials to our Foshan engineering hub for rapid feasibility analysis and competitive FOB/CIF pricing.
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