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3 Phase Electric 75mm Steel Roller Shutter





Robust access door for building perimeter security or storage applications with limited number of operation cycles per day. Specific applications include shop fronts, shopping malls, small factory units, stadiums, serving counters, garages, general storage rooms, plant rooms, remote buildings, Council facilities and sports grounds.

The tube motorized version of this shutter is ideal for a low number of operation cycles per day.



Maximum Size – 3,000 mm wide x 3,000 mm high


Curtain – Constructed using 75 x 0.7 mm interlocking laths in galvanised steel roll formed in house. The laths are retained in position using nylon end locks fitted with galvanised steel rivets. Refer ‘Steel Lath’ drawing details.


Bottom Rail – Rigid inverted ‘L’ or ‘T’ sections in galvanised steel sections complete with lifting handles. A Bottom Seal can be provided as an optional extra. Refer ‘Architectural Steel Bottom Rail’ drawings for details.


Side Guides and Angles – Side Guides are fabricated from 50 x 32 x 2.5 mm galvanised steel channel roll formed in house and complete with splayed tops. Where required or specified the Side Guides are bolted to fixing angles or posts of size and thickness to suit the shutter and application. Refer ‘Architectural Steel Side Guide’ drawing details for options.


Roller Drum – Fabricated from 100mm OD aluminium tube. The assembly incorporates helical torsion springs engineered to counter balance the Curtain, fixed to nylon roller blocks and a mild steel axle.


Bracket Plates – Fabricated from 3 mm galvanised steel in sizes to suit the height of the opening and engineered tube size. Generally the Brackets are fixed to the supporting angles. The Bracket Plates are provided with fixing lugs where hoods or fascia panels are required or specified.


Operation – Hand operation by push up and pull down actions applied to Bottom Rail.


Door Locking – Options include 1 or 2 Bullet Pins, a Central Keyed Lock to the Bottom Rail or Ground Lock depending on customer preference. Refer ‘Architectural Locking Options’ details.


Finishes – Galvanised steel items are left in raw form. Powder Coating in standard available colours is an optional extra and is applied using our in house powder coat line. Laths with Plastisol finish are available as an option.


Hoods / Fascias – Available as optional extras to suit the application. Hoods are manufactured in house from 20 swg (0.9 mm) galvanised steel sheet. Refer ‘Hoods / Fascia’ drawing details.


Vision / Ventilation – Laths can be provided with perforations to provide ventilation or vision through the Curtain as an optional extra. Refer ‘Steel Lath’ drawing details.


Weight – 35 kg/m2


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