Standardized B2B export specifications manufactured to ASTM, AS 2047, and CE EN standards. Each unit incorporates heavy-duty extruded alloy frames, high-load European hardware, and modular glazed security infills.
Precision spiral counterbalanced vertical slide mechanism, reinforced meeting rails, dual weather-stripping seals, and tamper-resistant tilt latches.
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Heavy Al-Mg alloy profile with PA66 GF25 thermal isolation bar, dual-point mortise security lock, and anti-lift structural stainless steel tracks.
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Top-hung heavy duty carrier trolleys, laminated toughened safety glass, seamless visual expanse, and integrated concealed flush bolt locks.
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STC 38dB acoustic rating, composite high-density calcium silicate core, magnetic latching system, and paintable bespoke architectural facing.
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OEM industrial extrusion dies, custom anodizing or Qualicoat powder coating, wall thickness 1.4mm to 3.0mm with precision CNC miter cutting.
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UL 10C & EN 1634 tested fire integrity (30/60/90 min), narrow-sightline industrial Crittall aesthetic with ceramic intumescent perimeter seals.
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Concealed touch-release spring latches, extruded aluminum perimeter rim for drywall compound embedment, moisture-resistant infill core.
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Electrostatic polyester powder finish, dual tandem stainless steel rollers, deep sill drainage baffling, and integrated anti-theft insect screen.
Explore Model SpecsSecurity doors manufactured in China are no longer merely barrier panels; they are structural building assemblies designed to withstand continuous mechanical prying, hydraulic forced-entry tools, ballistic impacts, and coastal cyclonic wind loads.
We strictly utilize virgin, primary aluminum billets for profile extrusion. While 6063-T5 delivers complex multi-chamber profiles with superior surface finish for architectural PVDF and powder coatings, high-stress load-bearing door leaves and pivot anchor bars utilize magnesium-silicon 6061-T6 alloy possessing an ultimate tensile strength exceeding 260 MPa and yield strength of 240 MPa.
Tensile Strength: ≥ 260 MPa · Hardness: ≥ 14 WebsterOur heavy-duty entrance door profiles are engineered to integrate German-origin (Siegenia / Hoppe / GU) and proprietary heavy multi-point locking mechanisms. Up to 7 to 9 hardened stainless-steel mushroom cams and hook bolts project 24mm deep into reinforced steel strike plates, neutralizing hydraulic pry bar attacks and meeting European EN 1627 Resistance Class 3 (RC3) benchmarks.
Forced Entry Resistance: EN 1627 RC3 / RC4 CompliantCondensation prevention and energy efficiency are vital for luxury residences across extreme climates. Our thermal break security doors incorporate continuous 24mm to 34mm Polyamide (PA66 GF25) insulating struts reinforced with 25% glass fiber. This isolates exterior temperature extremes, achieving overall door thermal transmittance (U-Factor) values as low as 1.2 W/(m²·K).
Thermal Performance: U-Factor ≤ 0.22 BTU/(h·ft²·°F)A direct metallurgical and engineering performance assessment comparing extruded thermal-break aluminum security doors with traditional steel, cast aluminum, and timber composites.
| Performance Criterion | Extruded 6063-T5 Thermal Break | Solid Cast Aluminum Plate | Commercial Hollow Metal (Steel) | Reinforced Hardwood Composite |
|---|---|---|---|---|
| Corrosion & Coastal Salt Resistance | Superior (ASTM B117 >3000h) | Superior (PVDF / Fluorocarbon) | Prone to Rust (Requires Galvanizing) | Degrades, Rots, Swells in Salt Air |
| Intrusion Resistance Rating | EN 1627 RC3 to RC4 Standard | EN 1627 RC4+ Ballistic Capable | UL 752 Level 1-3 (Gauge Dependent) | RC1 to RC2 (Prone to Jimmies) |
| Maximum Pivot Leaf Dimensions | Up to 2400mm (W) × 6000mm (H) | Up to 1800mm (W) × 4000mm (H) | Up to 1500mm (W) × 3200mm (H) | Up to 1200mm (W) × 2800mm (H) |
| Thermal Conductivity (U-Value) | 1.2 – 1.6 W/(m²·K) (PA66 Insulated) | 1.8 – 2.2 W/(m²·K) (Polyurethane Infill) | 2.4 – 3.2 W/(m²·K) (Polystyrene Core) | 1.6 – 2.0 W/(m²·K) (Natural Wood) |
| Acoustic Attenuation (STC) | 36 dB to 44 dB (Double/Triple Glazed) | 38 dB to 45 dB (Dense Core Sandwiched) | 30 dB to 35 dB (Hollow Resonant) | 28 dB to 34 dB (Subject to Air Leaks) |
| Maintenance Lifecycle | 30+ Years (Zero Rot, Zero Termite Risk) | 40+ Years (Monolithic Structural Cast) | 10–15 Years (Repainting, Rust Arrest) | 5–8 Years (Re-varnishing, Warping) |
As global building standards shift toward net-zero targets and ultra-luxury residential aesthetics, procurement managers must adapt their specifications to several emerging engineering developments.
High-end villa architecture increasingly demands floor-to-ceiling single entrance portals reaching 4 to 6 meters in height. Future wholesale supply requires integrated in-floor hydraulic closing systems, structural stainless-steel spindle pins supporting up to 800 kg leaf weights, and perimeter magnetic drop seals to maintain air tightness under positive wind pressure.
Mechanical keys are rapidly phasing out in prime commercial and residential sectors. Modern security doors feature concealed 3D facial recognition cameras, biometric vein sensors, and European-standard electronic motorized latches compatible with central building management systems (KNX, BACnet, Zigbee) without compromising the physical RC3 intrusion barrier.
Exporting to European, Australian, and North American markets requires compliance with strict embodied carbon mandates. Manufacturers are transitioning to certified low-carbon primary billets smelted using renewable hydro-power, accompanied by verified Environmental Product Declarations (EPD) to secure LEED v4.1 and BREEAM sustainability credits.
Building codes are tightening regarding multi-family and commercial corridors. Specifiers now demand single fenestration assemblies certified for both 60-to-90-minute fire resistance (UL 10C / NFPA 252) and mechanical burglary resistance (EN 1627 RC3), eliminating the need for secondary security shutters or non-compliant composite doors.
Headquartered in Shishan Town, Nanhai District, Foshan — the global epicenter of precision aluminum extrusion — Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI) operates a vertically integrated manufacturing ecosystem. From in-house die design and precision profile milling to multi-axis CNC hardware routing and automated assembly, our facilities ensure rigorous quality control at wholesale scale.
Every security door leaf undergoes computerized static structural deflection analysis, cyclic mechanical fatigue testing, and pressurized chamber water-tightness verification before export packaging.
Key contractual, engineering, and logistics considerations when sourcing wholesale aluminum security doors directly from Chinese manufacturing centers.
For high-security residential or commercial applications, the structural profile wall thickness must never be below 2.0mm. Our heavy-duty architectural entry systems utilize outer wall thicknesses of 2.2mm to 3.0mm, with critical internal hinge anchoring chambers reinforced up to 3.5mm to ensure screw retention under severe dynamic pry attacks and wind loads.
We apply high-grade architectural surface treatments meeting AAMA 2605 specifications. This includes multi-coat fluoropolymer (PVDF) finishes from PPG/AkzoNobel or Class I architectural anodizing (minimum 18-25 microns). All assemblies undergo ASTM B117 neutral salt spray testing exceeding 3,000 to 4,000 hours without blistering, flaking, or substrate oxidation.
Yes. Every wholesale project order is custom engineered. Our engineering team provides parametric CAD shop drawings and 3D step files accommodating exact structural opening sizes, custom threshold heights (including zero-step ADA compliant drain channels), customized transom lights, and specific directional opening layouts required by local design codes or Vastu principles.
Our standard production lead time is 25 to 35 business days following final CAD sign-off and deposit confirmation. For custom extruded profiles with proprietary dies, allow an additional 10 to 14 days for die fabrication and sample extrusion testing. Our factory handles full container loads (20GP / 40HQ) as well as LCL project consignments for custom luxury developments.
Our manufacturing protocols are certified under ISO 9001 and ISO 14001. Depending on project specifications, products are supplied with third-party test reports for CE (EN 14351-1), Australian AS 2047 (N6 wind pressure), and UL 10C fire safety certifications. Full material mill certificates (MTC) verifying aluminum billet composition are provided upon request.
Oversized leaves are secured in bespoke heavy-gauge plywood cases reinforced with internal steel perimeter angles. The door slab is wrapped in multi-layer pearl cotton, corner armor protectors, and sealed with anti-static vapor barrier film containing active desiccant pouches to prevent condensation and moisture damage during 30 to 45 days of ocean transit.
Eliminate middleman markups, secure factory-direct wholesale pricing, and collaborate with experienced bilingual fenestration engineers on your next residential development, luxury villa enclave, or commercial project.
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