Direct manufacturer supply for real estate developers, commercial contractors, and institutional distributors. Every system is constructed from high-tensile 6063-T6 or 6061-T6 architectural aluminium alloys, equipped with anti-jemmy locking gears, concealed hinges, and multi-point perimeter defense.
Heavy-Duty Security
Anti-Drill Armor
Impact Defense
Interlocking Rail
Lock-Block System
CE • SGCC Safety
Internal Grille Bar
Perimeter Security
Modern architectural burglar windows require a delicate balance between optical transparency, aesthetic elegance, thermal dynamics, and structural hardening. As an authoritative manufacturer with a 180,000 ㎡ production footprint and more than 600 skilled technicians, DERCHI designs and extrudes systems engineered to resist dynamic forced-entry attacks as codified under European Norms EN 1627-1630 (Resistance Classes RC2 to RC4) and Australian Standard AS 2047 / AS 5039.
Conventional residential fenestration fails under forced entry within 30 to 90 seconds due to frame flexure, corner chevron separation, or jimmying of the keeper. Our industrial burglar window lines counter this via high-yield-strength 6063-T6 virgin aluminium profile extrusions (minimum 2.0mm to 3.0mm primary wall thickness) coupled with internally stepped glazing pockets, cast-steel mushroom head espagnolettes, and structural silicone anchoring.
| Security Level | Attack Tool Archetype | Static Pressure Resistance | Recommended Glazing Specification | Primary Sector Application |
|---|---|---|---|---|
| Level 1 (RC2 Equivalent) | Pry bars, screwdrivers, pliers (up to 3 min attack) | 3 kN localized load at lock points | 6mm + 1.52PVB + 6mm Laminated Double Glazed | Suburban Villas, Standard Residential Flats |
| Level 2 (RC3 Certified) | Crowbars (700mm+), chisels, drills (5 min tool attack) | 6 kN hydraulic corner push-out load | 8mm + 1.52SGP SentryGlas + 8mm Insulated Unit | Coastal Luxury Villas, Commercial Banking, Estates |
| Level 3 (RC4 Defense) | Sledgehammers, axe, high-power cordless saw (10 min) | 10 kN frame deformation threshold | Multi-layer Polycarbonate / Glass Composite | Government Consulates, Luxury Showrooms, Vaults |
| Cyclone + Intrusion | Large missile debris (9kg lumber at 15 m/s) + prying | Cyclic wind load up to +/- 5.0 kPa | Structural silicone wet-glazed laminated tempered | Coastal Africa, Caribbean, North Queensland |
Global procurement metrics are rapidly shifting from pure visual design toward quantifiable resilience, carbon accountability, and active perimeter electronics. Procurement executives and international contractors should align schedules with these four macro developments:
Institutional contracts in Europe, North America, and emerging high-spec African commercial hubs increasingly require verified Environmental Product Declarations (EPDs). Procurement mandates require billet production with hydro-electric smelter sourcing, reducing carbon intensity from 16kg CO2/kg Al to below 4kg CO2/kg Al.
Gone are external grilles that create aesthetic cages. The future lies in concealed 16-point shoot-bolt mechanisms integrated seamlessly inside thermally broken window jambs. Micro-actuators interface directly with building management systems (BMS) and smart biometric protocols for remote lockdown.
Urban high-density developments require simultaneous resistance against ballistic fragments, seismic shifts, blast shockwaves, and deliberate mechanical intrusion. SGP ionoplast interlayers five times tougher and 100 times stiffer than conventional PVB have become the standard line-item in commercial tender schedules.
How cutting-edge metallurgical casting, thermal-break mechanics, and anti-tamper hardware engineering are transforming modern window integrity without compromising energy efficiency:
Traditional security windows often suffered severe thermal bridging. Modern profiles utilize reinforced 25% glass fiber polyamide insulation bars (PA66GF25) reinforced with stainless steel transverse lock-pins. This configuration delivers U-values as low as 1.2 W/m²K while resisting mechanical shearing loads up to 8,000 N during prying attempts.
For installations in high-salinity zones such as Lagos, Mombasa, Durban, or Dubai, profile surfaces are shielded with 60–80 micron Qualicoat Class 2 powder coatings or 3-coat PVDF fluorocarbon coatings. These chemistries withstand 3,000+ hours of continuous neutral salt spray testing without blistering, cracking, or color degradation.
Sliding and sash models incorporate integrated extruded aluminium anti-lift blocks and interlocking labyrinth seals within the head track and sill. Even when rollers are compromised, the sash cannot be lifted or pivoted outward without unlocking the master primary espagnolette.
As the core export manufacturing engine of Guangdong Dejiyoupin Doors and Windows Co., Ltd., we combine quarter-century fabrication mastery with end-to-end B2B supply chain control.
Operated by 600+ dedicated technicians in Foshan, Guangdong. Equipped with CNC automated cutting lines, double-head precision miter saws, automatic sealant injection lines, and high-speed multi-axis profile machining centers capable of handling commercial project scales on tight schedules.
Our fenestration lines comply strictly with CE, ISO9001, AS2047 (Australian N6 cyclonic testing), CSA, NFRC, and UL fire-rated standards. We provide certified laboratory test data, structural calculation reports, and factory quality audit logs with every commercial consignment.
Decades of maritime container consolidation expertise. We export FOB or CIF directly to major gateway ports worldwide, including Lagos (Apapa/Tin Can), Tema, Mombasa, Durban, Dar es Salaam, Abidjan, Dubai, Sydney, and Vancouver. Complete customs clearance documentation (SONCAP, PVoC, COC) is arranged in-house.
Direct technical and operational answers to common inquiries from property developers, commercial estimators, and facade engineers.
Consult directly with our senior fenestration facade engineers. Submit your project floor plans, schedules, or architectural requirements to receive rapid engineering feedback, structural compliance analysis, and factory-direct pricing within 24 hours.
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