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Roller Shutter Specification
Roller Curtain
75mm deep galvanised cold rolled sections are interlocked together to form the door curtain. The laths are concave in shape and are held together by pressed steel endlocks secured by steel rivets.
The gauge of the lath is determined by the size of the door and the installation location.
Bottom Rail Section
The bottom rail is normally a galvanised inverted T section. On larger applications a fabricated two piece bottom rail may be used.
In special circumstances a tapered bottom rail can be fabricated to suit sloping floors.
Channel Side Guides
Guide sections are manufactured from 3mm purpose rolled section, with different depths dependant upon the width of the shutter.
Windlock guide sections are provided where considered necessary.
For our special heavy duty specification a special fabricated guide arrangement section is constructed to enable roller shutters to be made up to 70m².
Roller Shutter Barrel
The roller barrel encases counter balance springs.
Each shutter is fitted with special computer calculated spring/springs to suit the shutter size.
The barrel is driven by either a steel drive sprocket or a cast iron gear wheel.
Drive System
The doors are hand chain driven by means of an endless hand chain around a cast iron chainwheel supported by a cast iron arm.
Locking Box
A pressed steel locking box is provided to accept a security padlock (Padlock provided by others). The locking box secures the hand chain thus preventing the door from being operated.
Electric Operation
All doors can be electrically operated if required.
Standard electrical operation is by 380/415 volt 3Phase I.P.44 rated motor.
The motor is complete with integral limit switches and up down stop buttons.
Single phase (240 volt) motors can be supplied at additional cost.
Electrical Wiring
When Industrial Door Engineering install roller shutters wiring is normally included.
Wiring is always in steel wire armoured cable unless otherwise agreed.
A 3 Phase 415 Volt 10 amp and neutral isolated power supply is required (by others) prior to door installation.
Siting of isolator
Approximately one metre above the finished floor level and 600mm to the same side of the doorway as the motor.
Electrical Optional Extras
Bottom Rail Safety edge
Infra red safety beam
Traffic lights or sirens
Induction loop controls for auto opening
Finish
All mild steel parts are supplied with either a grey or a red oxide painted finish.
Door curtains are supplied galvanised unless otherwise agreed.
Plastisol Finish
A range of approximately 30 different colours are available for the outside of the door curtain with the inside in a grey primer (refer to colour chart section). The plastisol colours are designed to either match or contrast to the external building cladding sheets.
Powder Coat Finish
Powder coat finish is available in a wide range of colours and is applied to the complete door on both sides. Powder coat is a more durable and hard wearing finish and is ideally suited to roller shutters.
Weather Strips, Brush Seals
To ensure against water ingress under the door a tapered floor or threshold is essential. Bottom rubber weather strips are only an assistance to preventing water ingress and are provided at extra cost.
Brush strips are available as an option for the bottom, top and sides to give additional seal if required. Please contact our office for advice on preventing water ingress into the building.
Hoods And Facias
Galvanised coil casing, facias and motor covers are all available at additional costs.
Door Weight
For structural calculations a door weight of 38kg per square metre should be used.
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