Specifications
Shutter Curtain: Galvanized steel or BSC "Plastisol" HP200 colour-coated, interlocking lathes, in a traditional 75 mm-deep design, facilitating easy and economical replacement.
Counterbalance: Helically wound torsion spring in a steel tube and roller assembly, mounted on special long-life bearings.
Guide Assembly: Formed from mild steel material, with a sufficient depth to provide adequate wind loading. Wind anchors are supplied as standard on all doors over 3.8 m wide.
Bottom Member: Produced from a cold rolled section in all galvanized material.

Operation
With a selection of different reduction gears and counterbalance springs to suit individual door sizes, operation of the rolling shutter door can be provided in any of several ways:

• Self-Coiling: For doors up to 8 sq. m (max. height 2.8 m); a push-up type is available allowing operation of the door from either side.

• Manual Hand Chain: An endless hand chain mounted inside provides easy operation for any given door height.

• Electric Operation: A selection of motor units, single or three phase, all with limit switches and controls, providing "fingertip" operation and producing the best results in the way of saving energy by allowing easy and fast closing of the door; a manual override is available in the event of a power failure.