The curtain shall be manufactured from 16mm outside diameter
galvanised steel tube of 1.2mm thickness. Sleeved with 20mm
diameter aluminium tube of 1.2mm thick, it is arranged horizontally
at 90mm centres connected vertically using zinc coated 3mm
thick steel hinge links at 208mm centres to form brick type
pattern. The ends of the galvanised tubes shall be fitted
with nylon end caps as standard. For extra heavy duty and/or
large applications, the galvanised tube ends shall be fitted
with washers and capped appropriately to prevent lateral movement.
The curtain and bottom rail shall be natural anodised aluminium
with zinc plated links. Guide channels to be of natural anodised
aluminium, and all other components (roller drum and support
brackets etc.) are given a coat of zinc chromate primer.
The bottom rail shall be specially extruded aluminium section
2mm thick measuring 123mm in height, and 48mm in depth. Heavy
duty bottom rails shall be used if the grille is over 6400mm
in width. This heavy duty aluminium bottom rail forms a box
type shape incorporating a self bracing extended bottom leaf.
Provision is also available for bottom seal as an option.
Shootbolt mechanism is the only available locking system other
than the chain.
Chain Lock; In this system locking shall be provided by using
two padlocks. One is fitted to either end on the bottom rail,
internally or externally. In case of chain operation system,
the chain can be locked by specially designed latch where
padlock can be applied. NOTE: Padlocks not supplied by Airport
Steel Roller Grilles operate by revolving on a roller drum.
Chain operation or motorisation are available as options,
depending on application (limitations may apply). See Method
See Industrial Operators.
(.pdf format, get Adobe
Datasheet RS3 - Motorisation Options (.pdf format,