SECURABLINDS® Blast Fixed Grille and Double Lock Grille


  • Product Description
  • Ideal Uses
  • Key Features
  • Technical Specifications
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This high security blast blind can be fitted internally being a buildings window. They work by using ant-shatter film that is applied to the window. This acts as a trigger in closing the blind within 10 milliseconds of the blast hitting the window. Once triggered the highly secure blinds rotate 180 degrees stopping shrapnel, glass and debris from entering as well as working amazingly against forced entry.

  • Embassies and government buildings that are under threat and may be targeted
  • Homes that are vulnerable to attack
  • Buildings in highly dangerous regions
  • High core strength making the blinds durable and resilient against both forced entry and explosions.
  • Solid construction makes an unbreakable barrier between attack and the inside of a building.
  • Aesthetically pleasing design so you don’t have to compromise on the look of your building

Manufacturing methods of these blinds are adhered to ISO 9001:2008. Building core strength and durability at every manufacturing stage.

Product Name:


Product Type:

Double Lock Grille / Fixed Grille

Product Code:

  • A1DLG (Double Lock Grille)
  • A1DLGT (Double Lock Grille Transom)
  • A1GR (Fixed Grille)
  • A1GRT (Fixed Grille Transom)

General Description:

Internally fitted behind a building’s window for forced entry prevention. The SECURABLINDS® Defender Fixed Grille has a fixed internal panel when access to the window is not necessary. The SECURABLINDS® Defender Double Lock Grille has a lock on both sides of the panel, so it can be removed for access to the window by unlocking both sides and carefully lifting out with the required amount of people depending on its size.

Finish: Polyester Powder Coated


  • 85mm Aluminium Blades @ 75mm centres.
  • 59mm between blades @ 90 °

Locking Bar:

A locking bar can be inserted across the blades into the inner panel to lock the blades in the closed position. Fixing Typically fixed through the outer frame within the reveal of a window aperture into the substrate of the building (timber/brick/block/concrete) using M8 VF fixings.

Double Lock Grille

  • 495 mm. 4 blades.
  • 570 mm. 5 blades.
  • 645 mm. 6 blades.
  • 720 mm. 7 blades.
  • 795 mm. 8 blades.
  • 870 mm. 9 blades.
  • 945 mm. 10 blades.
  • 1020 mm. 11 blades.
  • 1095 mm. 12 blades.
  • 1170 mm. 13 blades.
  • 1245 mm. 14 blades.
  • 1320 mm. 15 blades.
  • 1395 mm. 16 blades.
  • 1470 mm. 17 blades.
  • 1545 mm. 18 blades.

Fixed Grille

  • 463 mm. 4 blades.
  • 538 mm. 5 blades.
  • 613 mm. 6 blades.
  • 688 mm. 7 blades.
  • 763 mm. 8 blades.
  • 838 mm. 9 blades.
  • 913 mm. 10 blades.
  • 988 mm. 11 blades.
  • 1063 mm. 12 blades.
  • 1138 mm. 13 blades.
  • 1213 mm. 14 blades.
  • 1288 mm. 15 blades.
  • 1363 mm. 16 blades.
  • 1438 mm. 17 blades.

  • 1513 mm. 18 blades.

Height (Tightest aperture size -5mm.)

Unit Height min + max (dependant on width): 700mm to 2500mm – a transom (variable height) splitting the blades into two sets that can move independently from one another will be required over the height of 1900mm. Lock height and locking bar height are variable, dependent on overall height chosen. Lock height typically placed approximately a third from the bottom to centre of the unit. Locking bar height typically 2-300mm below lock height (Dependant on height of the unit, lock and hinge heights). If a transom is required there is a locking bar for each set of blades.


Choose closest size under tightest aperture size -5mm. Increments in 75mm.

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