Commercial premises need heavier protection than domestic residences. The fact that there can be very high value items inside, and not many people around to hear the noise can encourage a burglar to spend more time and bring extra-heavy equipment to do the job.

Crimsafe® had to engineer a new level of security to combat this threat.

For Crimsafe’s Commercial Systems, 4 big changes were made:

• 1. Increased the number of tamper-proof screws holding the clamp together by a factor of 5 (there’s one every 25mm along the clamp)
• 2. Drilled them into the clamp in a staggered fashion to resist any tendency for a single line of screws to weaken the mesh under extreme pressure
• 3. Doubled the clamp-to-mesh contact area for extra vice-like grip
• 4. Increased the thickness of the aluminium frame by more than 60% to significantly increase the screen’s resistance time under the heaviest attacks.

It was clear that something special had been created when Commercial Crimsafe withstood a category 4 cyclone test.

Crimsafe had BHP’s testing centre recreate a Category 4 Cyclone to test its strength under extreme conditions. They shot a piece of hardwood weighing 4 kgs into the screen at a speed of 72 kilometres per hour (20 metres per second). Then they took a series of 5 steel balls, each weighing two grams and almost a centimeter in diameter, and sent them smashing into the screen at 108 kilometres per hour (30 metres per second).

The Commercial product was dented but unbroken.

Quite simply it’s incredibly strong. If you saw just how many screws go into it, and how thick the frame is, you would agree that it is impossible to penetrate with any common attack. And unlike old fashioned security bars (which can be pried apart with a jack) it looks fantastic on your building.