Architectural Portfolio
Precision-Engineered Window & Glazing Systems
Verified zero-tolerance manufacturing across commercial storefronts, heavy-duty sliding systems, and hurricane-rated architectural configurations tailored for global development specifications.
180,000 m²
Production Base
Intelligent fabrication hub in Foshan, China
1,000,000+ m²
Annual Capacity
High-speed CNC profile processing & assembly
100+
Patented Technologies
Including Four-Side Six-Point locking systems
18,000+
Global Projects
Installed across commercial, luxury, and civic sites
Industrial Excellence
Structural Engineering, Physics & OEM Standards
An authoritative analysis of fenestration mechanics, thermodynamic barriers, and custom profile extrusion for institutional developers and procurement leads.
Alloy Extrusion & Metallurgy
Our sliding window assemblies deploy primary 6063-T5 and high-tensile 6061-T6 architectural aluminium alloys. Extruded with a minimum wall thickness of 1.4mm to 2.0mm for residential projects and exceeding 3.0mm for monumental commercial applications, each profile delivers superior wind load deflection resistance (tested to pass design pressures up to 4500 Pa).
- Pure primary aluminum billet sourcing
- High-precision automated CNC miter cutting
- Corner-crimping with injected structural sealants
Polyamide Thermal Barriers
To eliminate linear thermal bridging, our thermal break sliding systems integrate multi-chambered Technoform PA66 GF25 (polyamide reinforced with 25% glass fiber) thermal strut inserts. This structural barrier mitigates conductive heat loss, lowering profile U-factors to as low as 1.6 W/m²·K when paired with argon-filled low-emissivity double or triple insulated glass units (IGU).
- Polyamide PA66 GF25 insulated breaks
- Minimization of interior condensation risk
- Optimized for extreme tropical and cold environments
Anti-Theft Multi-Point Hardware
Security remains paramount in high-value infrastructure. Our sliding windows utilize proprietary, patented multi-point locking systems—such as our Four-Side Six-Point locking invention—engineered with 304/316 marine-grade stainless steel keepers, anti-lift security blocks, and silent heavy-duty stainless tandem bogie rollers capable of effortlessly gliding 300kg+ sashes.
- Patented multi-point lock integration
- Concealed drainage channels with baffled weeps
- Anti-jemmy and sash-derailment protection
Specification Matrix
Comparative Fenestration Performance Standards
Technical threshold evaluations contrasting standard commercial market solutions against our engineered OEM export configurations.
| Engineering Criteria | Generic Commercial Windows | Our Custom OEM Export Solution | Compliance Standards |
|---|---|---|---|
| Alloy Composition | Secondary / Recycled Al (Variable Tensile) | Primary 6063-T5 / T6 Pure Virgin Alloy | ASTM B221, EN 755 |
| Thermal Insulation (U-Factor) | Non-break: 4.8 – 5.8 W/m²·K | Thermal Break: 1.4 – 2.0 W/m²·K | NFRC 100/200, ISO 10077-2 |
| Air Infiltration Rate | ≥ 1.5 m³/(m·h) (Prone to dust ingress) | ≤ 0.2 m³/(m·h) (Triple EPDM Gasketing) | AS 2047, AAMA/WDMA/CSA |
| Water Penetration Resistance | 150 – 250 Pa (Weep overflow risks) | 450 – 700 Pa (Step-down drain manifolds) | ASTM E331, BS EN 12208 |
| Surface Coating Resilience | Basic Electrostatic Paint (Fade within 5 yrs) | Qualicoat Class 2 Powder or Fluorocarbon PVDF | AAMA 2604 / 2605 (10-20 Yr Warranties) |
| Acoustic Attenuation | Rw 25 - 28 dB (Single/Dual Glaze) | Rw 38 - 45 dB (Acoustic PVB Lamination) | ISO 717-1, ASTM E413 |
Manufacturer Provenance
Why Institutional Partners Choose Our Manufacturing Infrastructure
With over 25 years of specialized operational experience headquartered in Nanhai, Foshan—the world epicenter of architectural aluminium manufacturing—Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) stands as an authoritative force in precision industrial exporting.
Intelligent Manufacturing & 360° QC
Every profile is routed on 5-axis CNC machining centers. Laser precision and optical verification eliminate tolerance deviations before batch powder coating, glass assembly, and shrink-wrapped crating.
Certified Global Authority
Honored as a "China Famous Brand" by Xinhua News Agency, holding an unprecedented international certification grand slam: CE (Europe), NFRC (USA), AS2047 (Australia), CSA (Canada), and ISO 9001.
Scale, Continuity & Logistics
Operating a massive 180,000 m² modern manufacturing plant with over 600 skilled technicians, delivering guaranteed shipping schedules to major coastal and inland ports globally with bespoke logistics packaging.
Extreme Climate Engineering
Proven track record across 18,000+ complex real estate projects globally. Engineered profiles withstand scorching Saharan heat, Gulf of Guinea monsoons, and high-salinity coastal marine salt fogs.
Custom OEM & Architectural R&D
Over 30 dedicated in-house structural engineers evaluate project structural wind load calculations, BIM shop drawings, acoustic damping targets, and profile extrusion dyes for custom facades.
Holistic Building Envelope Range
One-stop multi-system integration: sliding windows, panoramic minimal-frame sliding doors, French swing casements, commercial storefronts, heavy-duty smart-lock entry doors, and structural sunrooms.
Future Forecasting
Procurement & Technological Trends Shaping the Sliding Window Industry
Forward-looking intelligence for project developers, quantity surveyors, and architectural procurement executives preparing for the next decade of infrastructure development.
1. Ultra-Narrow Sightlines & Concealed Tracks
Architectural demand is moving rapidly away from bulky multi-panel frames toward minimalist panoramic configurations. Next-generation systems feature motorized concealed bottom tracks, interlocking mullions as slim as 20mm, and integrated structural floor-to-ceiling glass that maximizes day lighting without compromising structural wind-deflection ratings.
2. Stringent Carbon Performance & Low-E Demands
Global building codes (such as South Africa's SANS 10400-XA, the US Title 24, and European EPBD standards) are setting aggressive thermal limits. Procurement is accelerating toward warm-edge spacers, solar-selective triple silver Low-E double glazing, and argon gas fillings that reduce lifetime heating, ventilation, and air conditioning (HVAC) operating costs.
3. Monolithic Hurricane & Intrusion Defense
Changing storm intensities and heightened security concerns require certified impact resistance. Specifiers increasingly reject aftermarket bars in favor of impact-laminated glass assemblies with multi-layer PVB/SentryGlas (SGP) interlayers bonded into heavy-duty aluminum profiles with high-shear structural silicone.
B2B Procurement FAQ
Frequently Asked Questions by Global Buyers & Contractors
Essential operational guidance for trade importers, architects, developers, and wholesale distributors seeking direct OEM supply agreements.
What documentation and quality certifications accompany OEM export shipments?
Every custom production order comes backed by comprehensive quality dossiers: ISO 9001 quality certificates, European CE declarations of performance, US NFRC certified thermal ratings, Australian AS2047/AS2208 compliance sheets, mill test alloy certificates, and export verification documents including SONCAP, PVoC, SASO, and CO certificates tailored to port clearances.
How does the factory prevent corrosion and seal degradation in marine environments?
For coastal installations subject to salt spray (such as Lagos, Mombasa, Durban, Miami, or Sydney), we mandate Qualicoat Class 2/3 polyester powder coatings or 3-coat fluorocarbon PVDF finishes (containing 70% Kynar 500 resin) with over 3,000 hours of continuous salt-spray testing. Tracks, fasteners, and internal locking linkages are exclusively machined from AISI 316 marine-grade stainless steel with vulcanized EPDM gaskets.
What is the standard procedure for handling shop drawings and site tolerances?
Our engineering protocol follows an 8-step precision pathway: 1) Initial architectural CAD/BIM drawing evaluation; 2) Profile system selection based on local wind and thermal calculations; 3) Detailed cross-sectional CAD submittals with opening clearance offsets; 4) Glass schedule confirmation; 5) Precision sample validation; 6) Production scheduling; 7) Factory-floor dry run assembly testing; 8) Full pallet tagging corresponding to building floor schedules.
How are oversized sliding windows packaged to eliminate glass breakage during maritime shipment?
Our export crating exceeds standard B2B freight protocols. Frames and IGUs are wrapped in 0.08mm electrostatic film, buffered with closed-cell expanded polyethylene (EPE) corner protectors, and sealed into non-fumigation plywood crates with internal anti-shock desiccants. For heavy multi-track panels, custom steel A-frames are deployed inside full container load (FCL) shipments to handle dynamic sea pitching.
Accelerate Your Project Specification With Factory-Direct Engineering
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