The Excalibur grille is a general purpose retractable grille which can be manufactured to a height of 3200mm. It is widely used in both commercial and domestic premises.
The grille has 16mm wide steel uprights and links with a robust extruded aluminium frame. It is a 'top-hung' grille, meaning that the retracting lattice runs on rollers within the top track, making operation almost effortless. The use of nylon rollers and bushes provides a smooth and virtually silent movement.
The pairs of uprights and links are bound together by a specially designed rivetting system which has been successfully tested to withstand a pullout force of 250kgs.
A standard 5 pin Euro-profile cylinder operates a multipoint locking system, securing the grille at two points on the lock jamb. Where the height of a grille is 850mm or below, a single point system is used. In both cases, the entire locking system is enclosed neatly within the grille frame. | 
