Manually spring operated
This is the most commonly used type of operation method among others.
Ideally suited to use in smaller applications door that requiring no hand chain & work using the tension of the spring only. When the shutter is fully closed, the standard dual locking system makes almost impossible to open from the outside. The dual locking system consists of horizontal bar locks on the bottom bar or shutter’s panel. It was also available with inside and outside key locking systems and steel bar pad lock.
Motorised operated
This is more convenient operation method compare to the others.
Motorised operated roller shutter allowed for the operation of much larger shutters often without the need for a centre stanchion which can be unsightly. This type of roller shutter can be operated by a push button; wall mounted key switch or hand held remote control unit (optional). A manual haul chain is provided for use in the event of a power failure.
Manually chain Block operated
This operation method is highly recommended to be used in heavy duty type of roller shutter which it is manually using the chain to control the operation of roller shutter.
Ideally suited to industrial applications, the curtain of the door is manually raised via a continuous haul chain which drives the fully spring counter balanced roller barrel assembly.
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Manually spring operated |
Motorised operated
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Manually chain
Block operated |
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