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Maximum security perforated grille AMPSG

Frame: Resistant steel sheet of 4.5 mm thick with welded corners. Perforated Panel: 4.5 mm thick galvanised perforated steel sheet with 8 mm holes.
Sleeves: Wall sleeves are made of galvanised steel.

Damper Frame: Galvanised steel sheet.
Damper Core: High quality extruded aluminium profile with natural aluminium finish and black matt finish.


  • Frame is constructed from 4.5 mm thick resistant steel and all sides welded with 4.5 mm thick perforated panel having 8 mm diameter holes. Whole structure is hot dip galvanised with the advantages of corrosion resistance.
  • Maximum Security Perforated Grilles are specially designed for maximum security prisons in order to secure the ventilation openings and provide proper air transfer for the facilities.
  • Security Grilles design prevents the inmates from using the grille to commit suicide
  • Security Grilles is available with flanged edges and are supplied without fixing holes as standard.
  • Available in square and rectangular sizes.

Standard finishes:

  • Hot dip galvanised.
  • Powder coated as per RAL color codes.


  • 40mm x40mm x 4mm angle frame loose supplied to be field welded on sleeve.
  • Rivet fixing to the wall sleeve.
  • Special damper proof screw fixing.


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