Architectural Aluminium Door Systems: Technical Engineering, Global Sourcing Standards & Future Procurement Trends

When specifying oversized sliding panels (e.g., heights exceeding 3.5 meters or panel weights over 300 kg) in coastal or high-rise applications, structural engineers must calculate the Moment of Inertia ($I_x$ in $\text{cm}^4$) of the central vertical mullion/interlock under maximum design wind pressure (typically $1.5 \text{ to } 3.0 \text{ kPa}$).

Afes Aluminium provides full structural engineering calculations verifying that profile deflection does not exceed $\text{L}/175$ or $15\text{mm}$ (whichever is lesser), ensuring that glass units are not subjected to dangerous bending stresses or seal degradation.

Thermal bridging is eliminated through multi-chambered polyamide 66 reinforced with 25% glass fiber (PA66 GF25) thermal breaks. These thermal barriers physically separate the exterior cold aluminum extrusion from the interior warm extrusion profile.

Additionally, we utilize expanded foam insulation inserts within the thermal break chambers, EPDM foam gaskets, and warm-edge glass spacers ($U_g \le 0.5 \text{ W/m}^2\text{K}$). This keeps internal frame surface temperatures above the dew point, eliminating condensation risk even under severe ambient outdoor conditions (-20°C).

For seaside or aggressive urban environments, standard powder coatings are susceptible to filiform corrosion. We strictly enforce Qualanod Class 1 (15-20 µm) or Class 2 (20-25 µm) anodic film thickness for anodized profiles, and Qualicoat Seaside-class pre-treatment for thermosetting powder coatings.

Profiles undergo alkaline etching, acid desmutting, and chrome-free zirconium conversion before the application of architectural-grade PVDF or superdurable polyester powders. This process delivers 20+ years of salt-spray, UV, and chalking resistance.

Yes. Our factory utilizes multi-axis CNC machining centers that cut lock gearboxes, strike plates, hinge positions, wiring conduits, and biometric reader cutouts directly into profiles according to client-provided CAD drawings.

We work with leading international hardware brands (such as G-U, Siegenia, Roto, Geze, Dormakaba, and Master) or integrate hardware supplied directly by the client's procurement team.

Standard profile die extrusion and powder coating typically take 3 to 4 weeks upon approval of technical shop drawings. Full assembly, glazing, hardware fitting, performance testing, and export crating require an additional 2 to 3 weeks.

Overall factory turnaround for standard container loads ranges from 4 to 6 weeks EXW Istanbul. Ocean freight transit times vary by destination (e.g., UK/European ports: 7-14 days; Middle East/Africa: 10-20 days; Americas: 18-30 days).

Color variations occur when components are powder-coated in separate batches or supplied by multiple fabricators. By sourcing the entire opening package—windows, entrance doors, sliding walls, and curtain wall trim—from Afes Aluminium, all profiles are processed using the same master RAL color batch under uniform powder coating line parameters.

We issue master control sample plates ($\Delta E \le 0.5$) for client architectural sign-off prior to mass coating execution.

Every shipment is accompanied by a comprehensive QA/QC compliance dossier. This includes Factory Production Control (FPC) records, Alloy Material Test Certificates (EN 10204 3.1), Powder Coating Thickness & Adhesion Test Reports, Glass Factory Certificates, Certificate of Origin (EUR.1 / ATR / Form A), detailed Commercial Invoices, and Itemized Packing Lists by crate and elevation mark.