- Anti-lift bottom rail with bolts
- Alarm and access control integration
A security roller shutter door is built to defeat the attack that actually happens: someone trying to lever the bottom rail up, cut the curtain, or drive into it. That means heavier slat, reinforced end locks, and anti-lift mechanisms — not just a thicker-looking door.
Where the weak points are
Most shutters that fail do so at the bottom rail or at the guide rails, not in the middle of the curtain. We specify a reinforced bottom rail with anti-lift bolts that engage into the guides, and guide rails fixed into structure rather than into brick skin. On high-risk sites we add a floor-locking detail.
Specification
- Heavy-gauge galvanised or aluminium slat, solid or perforated
- Anti-lift bottom rail with engaging bolts
- Deep guide rails fixed to structural substrate
- Key switch, remote, or integration with your alarm and access control
- Openings to 6 000mm wide
Speed matters as much as strength
A shutter that takes four minutes to close does not get closed at 17:00 on a busy Friday. We size the motor so a shopfront shuts in well under a minute, because a door that gets used is worth more than a door that is theoretically stronger.
Insurance
If your insurer has specified a particular standard or grade, send us the wording before we quote. It is a great deal cheaper to build to the requirement than to retrofit after an assessor has rejected the installation.
What makes a shutter genuinely secure
Slat thickness is the part people ask about, and it matters least. What actually resists a forced entry is the locking arrangement and how the door is anchored: anti-lift mechanisms that stop the curtain being levered up out of its guides, reinforced end locks on every second slat, deep guide rail engagement, and fixings into structure rather than into infill brickwork.
We specify all four together, because a heavy curtain in a shallow guide bolted to a weak wall is not a secure door — it is a heavy door. Cash offices, stock rooms, shopfronts and pharmacies each get a different combination depending on what is behind the opening.
How we build it
Every door is manufactured to your measured structural opening at our Sandton works in Tarlton, not cut down from a stock size. Slat is roll-formed on our own line, guides are cut and drilled to the opening height, and the springs are wound to balance the finished curtain weight. Powder coating is applied after fabrication so the colour holds across the whole assembly rather than just the visible slat.
What decides the specification
Two things: the width of the opening and how often the door moves. Spring life is measured in cycles rather than years, so a door opening forty times a day needs a different spring and drive to one opening twice, even at identical dimensions. After that it is environment — salt air, washdown, dust or forklift traffic each change the material and the hardware. That is why we survey before quoting.
Installation and handover
Fitted by our own teams, never subcontracted. Guides are set plumb and square, the curtain is hung and balanced, limits are set, and every safety device is tested and adjusted within safe closing force before we leave. You get a demonstration of normal operation and of the manual override, because the first time you need that override should not be during an outage.
Warranty and aftercare
Workmanship is covered for twelve months and motors carry their manufacturer warranty, which we register for you. Because we manufactured your shutter, we can tell you its exact specification years later and we hold the wear parts for it rather than ordering them in — which is the practical difference between a repair that happens this week and one that waits on a supplier.
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Perforated Roller Shutter Doors
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Punched steel roller shutter doors that keep a shopfront visible and ventilated after hours while still locking the opening down properly.
- Punched galvanised slat, mixed options
- Openings to 6 000mm wide