Engineered Portfolio
High-Performance Certified Architectural Entrances
Explore our industrial range of reinforced aluminium safety doors, insulated pivot portals, and ballistic-rated entry systems tailored to high-load architectural requirements.
180,000m²
Smart Manufacturing Base
25+ Yrs
Engineering Heritage
600+
Specialist Technicians
100+
Global Patents & Certs
Direct OEM Factory Advantage
Guangdong Dejiyoupin Doors and Windows Co., Ltd. (DERCHI)
Operating from Foshan—the world capital of precision aluminium extrusion—we engineer high-integrity safety entrances tailored to British, European, American, and Oceanic architectural specifications.
Stringent Multi-Standard Compliance
Every profile design meets CE criteria, DIN EN 1627 anti-burglary specifications (RC2 to RC4), AS 2047 cyclonic test N6 rating, and UL 3-hour fire retardant integrity. Full traceability is provided from billet smelting to powder coating.
Fully Integrated Turnkey Fabrication
DERCHI encompasses cold-chamber cast aluminium molding, multi-axis CNC milling, robotic PUR insulation injection, thermal break rolling, and automatic multipoint hardware integration beneath a single 180,000 m² campus.
Full CAD / BIM Engineering Support
Eliminate project design discrepancy. Our in-house technical engineers provide structural wind-load calculations, thermal transmittance simulations (UD down to 0.85 W/m²K), and comprehensive DWG/Revit detailing within 48 hours.
Engineering Architecture of Industrial Aluminium Safety Doors
In standard fenestration projects, architectural doors typically function as simple visual dividers. However, modern commercial and luxury residential envelopes mandate that a custom aluminium safety door functions simultaneously as an acoustic damper, thermal bridge barrier, structural windwall, and impenetrable physical security perimeter. As an experienced OEM supplier, DERCHI manufactures structural systems using 6063-T6 or 6061-T6 aeronautical-grade extruded profiles with outer wall thicknesses exceeding 2.5 mm to 4.0 mm.
Our internal core matrix incorporates dual-sheet galvanized armor lining, honeycomb high-density rockwool, polyurethane thermal infusion, and multi-chambered polyamide nylon (PA66GF25) thermal breaks. This composition effectively resists hydraulic jack forcing, saw breaches, high-impact crowbar leverage, and severe climatic fluctuations without sash distortion or operational friction over cycles exceeding 200,000 continuous openings.
| Performance Criterion | Reference Global Test Standard | DERCHI Engineering Capability | Commercial Advantage |
|---|---|---|---|
| Burglary Resistance | EN 1627-1630 / PAS 24 | Class RC2, RC3, and custom RC4 reinforced core | Exceeds police security guidelines; satisfies insurance requirements |
| Thermal Transmittance (UD) | EN ISO 10077-1 / 10077-2 | Down to 0.82 - 1.10 W/(m²·K) with warm-edge glass | Complies with Germany GEG, UK Building Regs Part L, and passive house criteria |
| Structural Wind Load | AS 2047 / ASTM E330 | N6 Rating (Deflection rating > 4000 Pa) | Engineered for exposed coastal fronts, typhoons, and alpine windloads |
| Air & Water Tightness | EN 12207 (Air) / EN 12208 (Water) | Class 4 (600 Pa) / Class 9A (600 Pa driving rain) | Dual or triple EPDM continuous magnetic compression gasket system |
| Acoustic Attenuation | ISO 717-1 / EN 20140 | Rw up to 42 dB sound attenuation factor | Guarantees silence in dense metropolitan developments and airport vicinities |
Market Intelligence
Future Procurement & Technology Trends (2025–2030)
Strategic sourcing intelligence for architectural project directors, façade contractors, and volume distributors.
1. Oversized Pivot Formats
Architects are specifying entrance portals exceeding 3.5m in height and 2.0m in width. Sourcing requires counterbalanced pivot spindles supporting up to 500kg with zero sashing deflection.
2. Biometric Smart Ecosystems
Procurement is moving away from mechanical keys toward concealed biometric scans, RFID transponders, 3D facial recognition, and motorized automatic locking connected to KNX building automation.
3. Thermal Carbon Decoupling
Strict energy efficiency directives (such as the EU Energy Performance of Buildings Directive) require exterior safety systems to exhibit sub-1.0 U-values while keeping aluminum profiles structurally robust.
4. Surface Metallurgy & PVD
High-end projects demand architectural textures: real cast bronze visual effects, fluorocarbon metallic powder coatings (AAMA 2605 compliant), and marine-grade anti-oxidation treatments.
Require Custom CAD Drawings or OEM Specifications?
Send your door schedules, project elevation drawings, or hardware specifications to our engineering team. We supply full technical proposals, DFM analyses, and project quotes within 24 working hours.
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Knowledge Base
Frequently Asked Questions on OEM Safety Door Procurement
Clear, direct technical answers regarding testing, custom fabrication, logistic packing, and field installation support.
What is the structural lead time for custom OEM/ODM tooling?
For custom profile extrusions, bespoke cast aluminum tooling takes 12 to 18 days. Standard custom configurations built upon our certified core systems (with tailored heights, glass, and finishes) move from approved CAD shop drawings to container departure within 25 to 30 days.
How do you verify compliance with European CE and RC-rating directives?
DERCHI safety doors are verified under EN 14351-1 harmonized standards. We issue complete Declarations of Performance (DoP) accompanied by third-party testing logs covering RC2/RC3 burglary testing, air permeability, sound isolation, and thermal transmittance calculations per project schedule.
Which multi-point hardware and lock systems are compatible?
We natively engineer frames for German Siegenia, GU, Winkhaus, and Hoppe hardware systems. We also provide integrated motorized electric strikes, electromagnetic drop bolts, and smart digital locking consoles seamlessly pre-wired during factory assembly.
How are heavy architectural doors packaged for overseas container transit?
Finished assemblies are wrapped in 5-layer protective film, corner-guarded with high-density EVA foam, and fully enclosed inside fumigated solid plywood export crates. Heavy pivot doors and oversized cast leaves are fitted with steel internal lift lugs to prevent transit warping.
Can DERCHI customize doors for extreme coastal or saline environments?
Yes. For marine installations, we apply a dual-pass chromate conversion process followed by Qualicoat Class 2 / AAMA 2605 certified fluorocarbon powder coating, alongside 316-grade stainless steel internal structural fixings, preventing galvanic corrosion and filiform deterioration.