Top Trusted Aluminium Powder Coated Sliding Windows Manufacturers & Factory

Our architectural powder-coated windows follow stringent international standards (Qualicoat Class 1 & Class 2, and AAMA 2604/2605). We apply an average coating thickness between 60μm and 85μm. Standard architectural-grade coatings carry a 10 to 15-year warranty against chalking, flaking, and excessive color shift (Delta E < 5). For coastal marine or severe UV desert regions, we apply super-durable fluoropolymer powders that provide verified weatherability warranties exceeding 20 to 25 years.

Traditional sliding windows often allow water penetration because sash tracks flood when wind pressure counters gravity drainage. DERCHI implements an isobaric pressure-equalized rain-screen chamber design. We incorporate a high-low stepped sill track, precision CNC-milled concealed drainage valves with anti-backflow flap gates, and vulcanized continuous EPDM weather-strip gaskets. This configuration reliably passes AS2047 and ASTM E331 water penetration tests up to 450–600 Pa test pressure.

Yes. We offer complete custom matching for the entire RAL K7 Classic range, Pantone architectural codes, and specialized custom architect samples. In addition to matte, satin, and high-gloss powder finishes, our automated lines can produce micro-textured sandblasted powder finishes, anti-scratch coatings, fluorocarbon PVDF liquid spraying, and Italian heat-transfer wood-grain finishes that realistically mimic natural timber grain without rotting or fading.

For standard profile extrusions in regular stock finishes (Matt Black, Anthracite Grey, White), our MOQ is 50 square meters. For custom architectural extrusion dies and bespoke color formulas, the project MOQ is typically one 20GP container (approx. 250–350 m²). Lead times run between 20 and 30 business days following client sign-off on shop drawings and production deposit. Expedited partial shipments can be scheduled for phased high-rise development milestones.

All glazed units use certified tempered safety glass (certified under ANSI Z97.1, EN 12150, or AS/NZS 2208) with high-strength structural silicone bonding. Sliding window frames and glass are individually wrapped in protective anti-static surface films, corner-guarded with high-density EVA shock absorbers, and packed vertically into fully enclosed structural plywood crates lined with moisture-proof desiccant packs. Crates are mechanically secured inside shipping containers using heavy-duty ratchet straps and timber bracing to prevent shifting during ocean transport.

Yes. Our internal engineering department provides comprehensive CAD and BIM submittal drawings for every project order. This documentation details 1:1 cross-sectional profiles, structural anchorage schedules, perimeter caulking points, weep-hole discharge paths, and static wind load deflection calculations (Ix values). We also supply full documentation for tender approval, including material mill test certificates, third-party salt-spray lab reports, and coating warranty certificates.