Explore our top 8 rigorously tested security fenestration series. Precision manufactured with 6063-T6 virgin primary aluminum billets, European multi-point shootbolt hardware, and laminated acoustic impact glazing.
Heavy-gauge profile integrating high-tensile 304 stainless steel insect & pry screen, flush multi-point cam locking, and superior thermal insulation rating.
Black matte architectural finish engineered with SGP laminated impact glass to resist both Category 5 gale force winds and aggressive crowbar intrusion.
Classic North American vertical sash lifting system augmented with internal anti-lift blocks, concealed heavy-duty sweep latches, and dual weatherstripping.
Top-hinged outward awning mechanism equipped with heavy-duty stainless steel 4-bar friction hinges and perimeter interlocking multi-point latches.
Specialized reinforced sash with 2.0mm wall thickness for basements, low-rise commercial hospitality, and high-risk residential exterior envelopes.
Designed to pass demanding wind-borne missile debris tests and severe forced entry tool attacks with continuous thermal break polyurethane barrier.
Heavy-duty diamond trellis extruded aluminium burglar barriers designed for storefronts, banks, storage vaults, and high-value logistics warehouse enclosures.
Architectural casement profile equipped with 8-point mushroom cam shootbolts, anti-drill alloy lock gearbox, and structural glazing bead retaining clips.
Modern architectural security windows have evolved beyond crude iron burglar grilles. DERCHI deploys holistic structural design balancing sleek visual sightlines with military-grade mechanical resistance.
Standard decorative aluminum extrusions fail under crowbar torsion tests because of low yield strength. Our security profiles utilize high-purity virgin primary aluminum billets (A00 grade) with controlled magnesium and silicon ratios, tempered to T6 condition. Yield tensile strength exceeds 215 MPa with Web deflection standards exceeding L/175 under 4500 Pa cyclic wind loads.
A burglar window's primary failure point during pry-bar forced attacks is the single-point latch. DERCHI integrates German-engineered perimeter drive-rod systems equipped with hardened steel mushroom-headed locking cams that engage deeply into heavy zinc-alloy strikers anchored directly into the internal reinforced chamber of the outer frame.
Glass pane pop-out is eliminated through internal-only glazing beads combined with dual-component structural silicone bonding (Dow Corning 983). Even if the outer pane is shattered with a sledgehammer, the high-tack PVB (Polyvinyl Butyral) or SGP (SentryGlas® Plus) interlayer holds the structural matrix intact, preventing forced entry.
| Security Standard | Simulated Intruder Attack Level | Tools Tested In Certification | DERCHI Recommended Window Configuration | Ideal Application |
|---|---|---|---|---|
| EN 1627 RC2 | Opportunistic burglar; 3 min working attack time | Screwdrivers (up to 365mm), pliers, wedge, pipe wrench | 1.8mm 6063-T6 frame + 6+1.14PVB+6 Laminated + 4-point mushroom locks | Standard Residential |
| EN 1627 RC3 | Experienced burglar; 5 min sustained manual tool attack | Crowbars (710mm), steel wedges, cold chisels, claw hammer | 2.2mm Reinforced frame + 8+1.52SGP+8 Laminated + 8-point shootbolts | Luxury Villas & Ground Floors |
| ASTM F588 / Grade 40 | Severe physical impact force & heavy mechanical pry | 300lb tensile load pull, sliding sash jimmying, blade thrusts | Casement/Awning anti-lift block + Heavy duty stainless 4-bar stays | US Commercial & Condos |
| AS 2047 Cyclone N6 | Tropical cyclonic air pressure + Windborne projectile debris | Timber projectile at 15 m/s + 4500 Pa cyclic positive/negative loads | Multi-chamber continuous marine gasket + SentryGlas® hurricane unit | Coastal & Gulf Waterfronts |
International developers, general contractors, and facade consultants are shifting procurement strategies based on tightening building energy codes, automated building security ecosystems, and carbon metrics.
The traditional mechanical lock is rapidly being superseded by mechatronic multi-point drive systems. Specifiers now mandate concealed chain actuators and motorized shootbolts communicating through KNX, BACnet, or Matter wireless protocols. This enables automated night-time security latching, remote tamper detection alarms, and HVAC-interlocked micro-ventilation without compromising envelope security.
European and North American procurement mandates now demand verified Environmental Product Declarations (EPD). Leading Chinese manufacturers are investing heavily in low-carbon hydropower-smelted primary aluminium and certified post-consumer recycled billet blends, reducing embodied carbon from 16 kg CO2e/kg aluminium down to under 4.0 kg CO2e/kg while maintaining metallurgical yield integrity.
Historically, heavy security windows suffered from poor thermal conductivity due to thick solid aluminum ribs. Future architectural tenders require whole-window U-factors below 0.8 W/(m²·K) (Passive House PHI standard) combined with RC3 intruder ratings. This requires multi-cavity glass-fiber reinforced polyamide bars filled with aerogel insulation and vacuum-insulated safety glass (VIG).
Rising on-site job labour costs in North America, Australia, and the Middle East have driven a surge in factory unitized procurement. Contractors reject field-glazing, instead sourcing completely assembled, glazed, silicone-cured, and factory-tested window pods ready for rapid crane installation into rough openings, minimizing job-site risk and installation error.
Due to escalating severe weather anomalies, procurement documents increasingly unify windstorm impact resistance (Miami-Dade NOA / ASTM E1886/E1996) with European burglar resistance (EN 1627). Facade envelopes are engineered as single hybrid systems that offer simultaneous blast mitigation, Category 5 storm protection, and sustained burglar defense.
B2B buyers no longer accept simple PDF brochures. Factory-direct suppliers must provide parametric Revit BIM families, complete with thermal simulation isothermic analysis (LBNL THERM/WINDOW), acoustic calculation reports, and customized structural anchor calculations for local municipal authority approval.
Headquartered in Foshan—China’s global hub for precision aluminum profile manufacturing—DERCHI has grown over 25+ years to rank among China’s Top 10 luxury door and window manufacturers. Our 180,000㎡ intelligent production base is equipped with German CNC five-axis machining centers, automated electrostatic powder coating lines, and comprehensive fenestration test labs.
We have supplied high-profile residential developments, luxury coastal compounds, and commercial hospitality complexes throughout the United States, Canada, Australia, the UAE, Saudi Arabia, Qatar, and Southeast Asia. Our turnkey overseas engineering team provides end-to-end design assistance, structural shop drawings, and precision production strictly tailored to regional wind codes and security regulations.
Free shop drawing generation within 48 hours. Our technical team works directly with your elevation drawings, window schedule, and local structural engineer requirements.
Every window series undergoes in-house testing for cyclic air infiltration (ASTM E283), static water penetration (ASTM E331), and forced-entry pry tests before shipping.
Qualicoat Class 2 certified powder coatings, PPG fluorocarbon (PVDF) 3-coat finishes, and 25μm deep anodizing resist salty coastal fog, severe UV, and sand scouring.
Custom fumigated composite plywood crates with EPE foam cushioning, desiccants, and steel strapping guarantee zero breakages during multi-modal ocean container freight.
Get straightforward technical and commercial answers regarding minimum order quantities, testing certifications, custom engineering, and global project delivery.
DERCHI utilizes the identical tier-1 hardware components (such as Siegenia, Roto, GU, and Hoppe), virgin 6063-T6 aluminum alloys, and German Technoform Bautec polyamide thermal breaks. However, our vertically integrated 180,000㎡ Foshan manufacturing base delivers equivalent structural RC2/RC3 physical security performance and NFRC/CE thermal metrics at a 40% to 55% competitive cost advantage, with accelerated production lead times.
Yes. Our facade engineering department provides project-specific structural calculation books, including moment of inertia (Ix, Iy) analysis of structural mullions under specified regional design wind pressures (DP), thermal simulation reports (U-value, SHGC, VT), glass stress calculations (ASTM E1300), and anchor embedment calculations stamped for contractor submission.
Our standard MOQ is flexible: we support bespoke single-luxury villa projects (from 30 m²) as well as large-scale multi-tower commercial developments (up to 50,000 m²). Lead times for standard RAL powder-coated finishes are 25 to 30 working days from final shop drawing sign-off; custom extruded dies or custom anodized finishes require approximately 35 to 40 days.
Standard PVB (Polyvinyl Butyral) is flexible and prevents glass shrapnel from dispersing upon fracture; however, under sustained blunt crowbar strikes, PVB can stretch and tear. SGP (SentryGlas® Plus) is an ionoplast interlayer that is five times more tear-resistant and 100 times stiffer than PVB. When shattered, an SGP glass panel remains rigid and upright, resisting forced entry tools and category 5 hurricane debris impacts.
All windows are packed in customized, fumigation-free solid plywood export cases. Frame corners are safeguarded with reinforced plastic guards, glass surfaces are protected with static cling PE films, and inside crates are braced with high-density EPE foam spacers and moisture-absorbing silica gel bags. Over 99.8% of our sea freight shipments arrive at destination ports in factory-pristine condition.
Yes. Because burglar-resistant windows feature high-mass laminated glass, triple EPDM compression seals, and heavy structural frame walls, their acoustic attenuation is inherently outstanding. Depending on glass configuration (e.g., asymmetric double-glazed acoustic laminated units), our systems achieve sound reduction indices from Rw 38 dB up to Rw 46 dB, effectively eliminating ambient traffic rumble.
Send us your architectural elevations, window schedule, or tender specifications. Our experienced bilingual facade engineers will evaluate your structural wind load, thermal insulation, and anti-theft requirements, returning custom CAD shop drawings and direct factory pricing within 24 hours.