Austral Monsoon "H11" 50mm GUARDIAN Security Steel Roller Shutter

Maximum Size - 3000 mm wide x 3000 mm high


The H11 steel roller shutter is a robust access door for building perimeter security or storage applications. It is often used in school canteens, change rooms, amenities buildings, council facilities and sports grounds. The H11 steel roller shutter is particularly suited to sites which, because of their secluded nature are an obvious targets for vandals and theft.


  1. Curtain - Constructed using 50 x 0.4 mm or 50 x 0.6 mm interlocking slats, in galvanised steel, roll formed in house at Austral Monsoon. Slat thickness is dependent on the opening width, and the security requirements of your project. The slats are retained in position using nylon end clips, fitted to every second slat, and a GUARDIAN locking lug, fitted to alternate slats to secure the curtain into the side guides. For further information, refer to the technical information detail below.
  2. Bottom Rail - Rigid extruded aluminium section. A bottom seal can be provided as an optional extra. For further information, refer to the technical information detail below.
  3. Side Guides (Track) - Side Guides are fabricated from galvanised steel "Lock-in Guide Section". This is fabricated in-house at Austral Monsoon and completed with splayed tops. The side guides size is 80 x 43 x 3.0mm. Where required or specified, the side guides are bolted to fixing angles or posts of size and thickness to suit the shutter and application. For further information refer to the technical information detail below.
  4. Roller Drum - Fabricated from mild steel or galvanised tube with the outside diameter and thickness appropriate to the size and application of the steel roller shutter.
  5. Bracket Plates - Fabricated from 3 mm galvanised steel, in sizes to suit the height of the opening and engineered tube size.
  6. Operation - Generally hand operated. However, appropriate tube motors can be fitted. Tube motors are 240 volts, and can be activated through a variety of control devices to suit application or your preference. Tube motors require single phase, 10 amp, 3 pin plug socket within one metre of each door opening.
  7. Door Locking - Shootbolts can be fitted internally or externally to accept padlocks, or two-way, two-point, key operated lock, fitted to the bottom rail, or at waist height. Locking is not recommended for electrically operated steel roller shutters.
  8. Finishes - Galvanised steel items are left in their raw form. Powder coating (in standard available colours) is an optional extra, and is applied using our in house powder coat line.
  9. Hoods / Fascias - Available as optional extras to suit the application. Hoods are manufactured in house from 0.5 mm galvanised steel sheets. Fascias are fabricated using 50 x 28 x 2.5 mm galvanised steel channel for the perimeter frame, and interlocking galvanised steel roll formed slats as an infill panel.
  10. Weight - 10.013 kg/m2

Technical Information


To discuss your requirements the H11, or any of our architectural steel roller shutters, please select your state on the contact us page, and call or email your nearest Austral Monsoon team.