Visionguard 45 Grille
A range of roller grilles designed for industrial and commercial applications. The grilles allow air movement through the building whilst giving security to the opening. Each door is custom manufactured to suit most types of structural opening and designed to give a smooth, quiet operation, whilst retaining a neat, self-contained appearance.
Maximum opening sizes – 11,000mm clear width x 7,000mm clear height.
Weight – 15kg/m².
Standard headroom
1900mm clear opening height – coil box size: 250mm
3000mm clear opening height – coil box size: 300mm
4500mm clear opening height – coil box size: 350mm
7000mm clear opening height – coil box size: 400mm
Percentage clear vision – 72%
Curtain
Constructed from galvanised 14mm x 1.2mm thick tubes and 2mm thick flat links. The curtain is assembled into a ‘brick bond’ pattern with spacing of 322mm width x 60mm vertical centres and each are locked to prevent lateral movement.
Bottom Rail
Constructed from a 14 x 70mm extruded box section.
Side guides
Formed from cold rolled mild steel channels and secured into the opening by continuous box sections.
Roller assembly
Constructed from mild steel tube.
Endplates
The roller assembly is supported by mild steel endplates with mounting angles.
Roller enclosure (Optional)
Formed from a galvanised pressed metal sheet to enclose the rear of the shutter barrel and curtain assembly.
Operation
Self-coiling push-up operation
Hand chain operation
Electric operation using an enclosed tube motor to suit the size of the opening, fixed within the barrel. Standard voltage 240v single phase 50Hz or 415v 3 phase 50Hz.
Optional extras
Remote control
Opening on receipt of fire signal
Solenoid locking
Card reader operation
Key switch operation
Induction loop operation
Consult with Northern Doors (UK) Ltd technical literature for details. Northern Doors can also provide a design and specification advisory service and it is recommended that they are consulted early in the design process.

Manufacturer: Northern Doors (UK) Ltd, Kingsforth Road, Thurcroft, Rotherham, South Yorkshire, S66 9HU. Tel: 01709 545 999. Fax: 01709 545 341. Email: This email address is being protected from spam bots, you need Javascript enabled to view it Web: www.northerndoors.co.uk 
Product reference: Visionguard 45 Grille

Performance: Not applicable

Arrangement: Vertically operating roller grilles

Shutter curtain: Galvanised 14mm x 1.2mm thick tubes and 2mm thick flat links, assembled into a ‘brick bond’ pattern with spacing of 322mm width x 60mm vertical centres and each are locked to prevent lateral movement.
Finish as delivered: Consult with Northern Doors (UK) Ltd for availability of alternative finishes and to obtain samples.

Frame/ Guides:
Bottom rail: 14 x 70mm extruded box section.
Side guides: Cold rolled mild steel channels, secured into the opening by continuous box sections.
Roller assembly: Mild steel tube.
Endplates: Mild steel endplates with mounting angles.
Roller enclosure (optional): Galvanised pressed metal sheet to enclose the rear of the shutter barrel and curtain assembly.
Finish as delivered: Consult with Northern Doors (UK) Ltd for availability of alternative finishes and to obtain samples.

Operation:
Self-coiling push-up operation
Hand chain operation
Electric operation

Ironmongery: Consult with Northern Doors (UK) Ltd for recommendations and details.

Other requirements:
Remote control
Opening on receipt of fire signal
Solenoid locking
Card reader operation
Key switch operation
Induction loop operation