Rolling Door & Blind Aluminium Coil

Core Advantages

• 3xxx Al-Mn alloy base, natural anti-rust property, suitable for humid, coastal and rainy environments

• Optimized for roller shutter & blind roll forming, stable bending performance, no paint cracking during repeated curling

• Multiple coating options: PE for indoor / normal outdoor; HDP / PVDF for coastal and strong UV outdoor projects, long color retention

• Good scratch resistance, reduce surface damage during rolling and daily sliding operation

• Precise slitting, smooth burr-free edge, high production yield for blind and shutter manufacturers

• Rich surface options: solid RAL colors, matte/gloss, wood grain, embossed texture

• Light weight, reduce load of rolling door motor, quieter rolling operation

• PE protective film covered on surface to avoid scratches during transportation and processing

Production Process

Aluminum jumbo coil uncoiling → Degreasing & cleaning → Chromate conversion pre-treatment → Primer coating → Topcoat baking curing → Coating performance inspection → Precision slitting into required width → PE protective film lamination → Visual & dimension inspection → Export packing Each batch conducts bending test, coating adhesion, salt spray and UV aging test before shipment.

Technical Parameters

Application

Residential building: House garage rolling shutter, window roller blind, venetian blind slat Commercial store: Shop front roller shutter, security rolling door Industrial factory: Warehouse rolling shutter, workshop anti-theft rolling door Blind factory: Raw coil for aluminum venetian blinds, sun shading roller blinds

Export Packaging

Coils wrapped with kraft paper and moisture-proof PE film. PE protective film on coated surface for scratch prevention. Coils loaded on IPPC fumigated wooden pallets, secured by packing straps and stretch film. Shipping marks mark alloy grade, temper, thickness, width, coating type, color code, net/gross weight and batch number. MTC, test reports and fumigation certificate available for customs clearance and incoming inspection.

FAQ

Q1: Recommended alloy for rolling door & blind coil? A: 3005-H46 is most popular globally for blinds and rolling shutters; 3105 for high weather resistance; 3003 for cost-effective indoor blinds.

Q2: Thickness selection guide? A: 0.2–0.4mm for venetian / roller blinds; 0.4–0.8mm for garage & store rolling shutter slats.

Q3: PE vs HDP vs PVDF coating? A: PE for indoor blinds and mild inland outdoor; HDP for general outdoor rolling shutters; PVDF for coastal high salt-spray environment.

Q4: Can it stand repeated rolling & bending? A: Yes, the coating system is designed for cyclic roll forming, no cracking at bending position.

Q5: Custom width available? A: Yes, we can slit mother coil into custom narrow widths matching shutter & blind machine requirements.