CE Certified Aluminium Sliding Doors Suppliers & Exporter

Under the EU Construction Products Regulation (CPR 305/2011), suppliers must provide a valid Declaration of Performance (DoP) referencing harmonized standard EN 14351-1:2006+A2:2016. This document must state verified test values conducted by an accredited third-party Notified Body for essential characteristics, including: Thermal Transmittance ($U_w$), Air Permeability (EN 12207), Water Tightness (EN 12208), Wind Load Resistance (EN 12210), Acoustic Performance ($R_w$), and Dangerous Substances release. In addition, our manufacturing facility maintains continuous Factory Production Control (FPC) audit certifications.

We employ an equalized pressure decompression chamber principle. Rather than attempting to block water purely with exterior face seals, our profiles isolate the wet zone from the dry zone via a dedicated decompression chamber. Internal sill steps feature stepped drainage channels with high-flow non-return valves, engineered according to Bernoulli's principle. This design exhausts dynamic water volumes even under external wind loads up to 1,050 Pa (Class 9A / E1050 under EN 12208), preventing internal overflow.

System thermal transmittance ($U_w$) is derived via the standard formula: $U_w = \frac{\sum(A_g U_g) + \sum(A_f U_f) + \sum(l_g \Psi_g)}{\sum A_g + \sum A_f}$. We utilize finite element thermal analysis software (LBNL THERM & WINDOW) to model heat transfer through frame sections ($U_f$). By incorporating multi-cavity PA66 GF25 thermal strips, low-e argon-filled double or triple glazing ($U_g \le 0.6 \text{ W/m}^2\text{K}$), and warm-edge composite spacers ($\Psi_g \le 0.038 \text{ W/m}\cdot\text{K}$), we deliver composite $U_w$ values ranging between 0.85 and 1.4 W/(m²·K).

For coastal zones within 5 kilometers of the shoreline, we mandate architectural powder coatings certified to Qualicoat Class 2 or Class 3, or Class I anodization (≥ 20-25 μm thickness) in compliance with Qualanod specifications. Pre-treatment includes zirconium or chromium-free chemical etching to establish optimal substrate adhesion. Finished components undergo rigorous 1,000 to 3,000-hour neutral salt spray (NSS) and acetic acid salt spray (AASS) testing per ISO 9227 to verify complete resistance to filiform and galvanic corrosion.

Oversized panels face severe bending moments caused by wind pressure ($W_p$) and thermal deflection. We calculate the required moment of inertia ($I_x$ and $I_y$) using structural engineering deflection limits ($L/200$ to $L/300$ per EN 13116). Where calculated loads exceed bare extrusion thresholds, our interlock stiles are reinforced with internal structural steel or high-tensile 6060-T66 aluminum stiffeners. This enables custom spans of up to 4,000mm sash height with interlock profile sightlines as narrow as 20mm.

Heavy-duty lift-and-slide systems employ precision tandem rollers equipped with high-carbon chromium steel (GCr15) sealed roller bearings and self-lubricating polyoxymethylene (POM) or stainless steel (SUS316) outer races. When the operating handle is rotated 180 degrees, a mechanical lever lifts the entire door sash off its dual compression EPDM gaskets onto the track, reducing initial static friction. This allows a 400 kg sash to glide smoothly with an initial operating force under 25 N and a sustained rolling force under 15 N.

Export shipments undergo a five-tier preservation packaging protocol: 1) Frame profiles are wrapped in protective polyethylene films and high-density corner guards; 2) Glazed units are separated with non-adhesive cork pads and bubble wrap; 3) Panels are secured on reinforced, heat-treated fumigated timber (ISPM 15) A-frames or fully enclosed multi-layer plywood crates; 4) Interior spaces are packed with industrial silica gel desiccants to prevent container sweat and condensation stains; 5) Crates are anchored inside shipping containers with heavy-duty polyester composite strapping.

For standard catalog profiles with stock powder-coat finishes (e.g., Anthracite Grey RAL 7016, Jet Black RAL 9005, Traffic White RAL 9016), our MOQ is 1 complete architectural set or 50 m². For custom extrusion dies, bespoke architectural profiles, or project-specific anodized colors, the profile extrusion MOQ is 500 kg per section. Standard factory fabrication lead times range from 25 to 35 business days following final architectural shop drawing approval and deposit receipt.

Yes. Our internal engineering department of 30+ R&D structural engineers prepares comprehensive AutoCAD shop drawings, elevation details, 3D section axonometrics, structural anchoring details, and static wind load calculations for every project. Furthermore, we provide Autodesk Revit (.RVT) and IFC BIM models embedding accurate thermal and dimensional metadata for integration into Level 2 and Level 3 building information modeling workflows.

Conventional sliding doors rely on single-point center latches that are vulnerable to pry attacks and leave upper and lower corners uncompressed. Our patented Four-Side Six-Point locking mechanism drives interconnected hardened steel transmission rods when the main handle is engaged. Multiple mushroom cam pins simultaneously dock into reinforced stainless-steel strike pockets along all four perimeter edges. This provides certified European RC2/RC3 forced-entry resistance while guaranteeing uniform gasket compression for maximum sound and air isolation.