Industrial Doors // Roller Shutter Doors // Construction

 Roller barrel
 A mild steel tube with bright drawn mild steel support shaft, both of varying diameter, dependent upon opening size,
 housing either helical steel springs to counterbalance the torque of the shutter curtain, or a 240 volt ac motor for tubular
 motor roller shutter doors.

 End Plates
 Mild steel plates to support the roller barrel assembly incorporating mild steel 'U' cups, to house the support shaft,
 secured to continuous ‘flag-post’ design fixing angles or independently mounted.

 Guide Channels
 Roller mild steel channel selection, of varying depth, dependent upon opening size, mounted onto mild steel angles to
 captivate the shutter curtain on its opening and closing cycle. Doors subject to high wind loading are fitted with
 ‘windlock’ guide section, and is recommended for doors above 4500mm wide.

 Shutter Curtain
 As standard, constructed from 76mm deep, concave profile, galvanised mild steel interlocking laths, with ‘end-locks’
 pressure riveted at each end of each alternate lath to prevent lateral movement. The bottom rail is manufactured from
 galvanised mild steel inverted ‘T’ section or ‘L’ section that interlocks with the lowest lath to ensure accurate closing at
 floor level.

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