Heavy duty 19mm aluminium roller grille
These are ideally used in shopping complex's, arcade, large entrance doorways, shop fronts. buildings near the sea, carpark entries and chemical enclosures.
Manufactured from 20mm diameter aluminium tubing at 75 mm centres connected horizontally by extruded aluminium links 40mm wide at 500mm centres riveted to the tubing to form a brick pattern.
The bottom rail shall be manufactured from specially extruded heavy gauge aluminium attached to the bottom tube for adequate strengthening of the curtain.
The guide channels shall be specially extruded aluminium section.
Up to 5000mm high x 6500mm wide for internal use. (External use subject to manufacturer's design).
The roller drum shall consist of 168mm diameter minimum seamless cylindrical tube encasing hilical tension springs, matched to suit door size and weight and manufactured from a super grade wire revolving around a steel axle. The roller drum shall be designed to give minimum deflection over the door span.
Drum Wall Support Brackets
The roller drum support brackets shall be manufactured from mild steel plate having a minimum thickness of 8mm thick and/or matched to suit door size.
Operation is by hand chain or electrically motorised according to size preference or as selected. Chain operation is by endless chain and gear reduction.according to size and
Centre mullions may be incorporated to suit individual or multiple openings.
Finish shall be:-
Natural anodised or color anodised
Powder coat painted to colors as selected