Alto And DemiAlto
A steel grating with vertical and horizontal flat bars forming a rectangular aperture 33 to 66 mm wide for cladding, security screens or balustrades.
Alto and DemiAlto represent a pressure-locked range of gratings which are characterized by a rectangular aperture 132 mm high.
The process of pressure-locking produces a very high quality material with perfectly formed intersections between the vertical and horizontal flat bars, resulting in the most aesthetic grating for vertical applications.
The flexibility of this method of manufacture means that production can be readily adapted to provide gratings to individual specifications of weight, aperture and performance.
Alto is manufactured from equal sections of flat bar which provides an identical appearance from both sides. DemiAlto is manufactured from flat bars of unequal depth; the standard section of horizontal transverse bearing bar is 10 x 2 mm.
All panels are manufactured to custom sizes and supplied framed and fully finished.
Panels and posts can be supplied galvanized only or galvanized and powder coated to any RAL colour.
Finish | Hot dip galvanized To BS EN ISO 1461. Hot dip galvanized and polyester powder coated Insert RAL or BS colour to BS EN ISO 1461 and BS EN 13438. |
Material | Electrofused steel S235JR |
Uniclass 2015 | |
CAWS | H31/10 Metal H31/120 Metal L10/60 Security L10/690 Security L30/55 Proprietary balustrades L30/560 Proprietary balustrades |
Product Reference | AltoDemiAlto |
Panel | - |
Panel Type | Alto - 3333 x 132 mm aperture (w x h) / 25 x 2 mm flat bars. Alto - 4444 x 132 mm aperture (w x h) / 25 x 2 mm flat bars. Alto - 5555 x 132 mm aperture (w x h) / 25 x 2 mm flat bars. Alto - 6666 x 132 mm aperture (w x h) / 25 x 2 mm flat bars. DemiAlto - 3333 x 132 mm aperture (w x h) / 25 x 2 mm vertical bar, 10 x 2 mm transverse bar. DemiAlto - 4444 x 132 mm aperture (w x h) / 25 x 2 mm vertical bar, 10 x 2 mm transverse bar. DemiAlto - 5555 x 132 mm aperture (w x h) / 25 x 2 mm vertical bar, 10 x 2 mm transverse bar. DemiAlto - 6666 x 132 mm aperture (w x h) / 25 x 2 mm vertical bar, 10 x 2 mm transverse bar. |
Panel size | Bespoke, 2000 x 2000 mm (maximum). Large structural openings are covered by an arrangement of panels. |
Transverse bars | Not applicableDelete property if specifying Alto. Back positionBack accentuates a linear appearance. Front positionFront accentuates the rectangular appearance. |
Fixing | Through holes in the framing barThrough welded platesWith clamping brackets |
Finish | Hot dip galvanizedTo BS EN ISO 1461. Hot dip galvanized and polyester powder coatedInsert RAL or BS colour to BS EN ISO 1461 and BS EN 13438. |
Standard product features | Material: Electrofused steel S235JR. |
Product Options | Panel type: - Alto: Alternative flat bars are available as follows: 25 x 3; 30 x 2; 30 x 3; 30 x 4; 40 x 2; 40 x 3; 40 x 4; 40 x 5 and 50 x 3 up to 70 x 5 mm. -DemiAlto: Alternative bearing bars are available as follows: 25 x 3; 30 x 2; 30 x 3; 30 x 4; 40 x 2; 40 x 3; 40 x 4; 40 x 5 and 50 x 3 up to 70 x 5 mm. Apertures: Alto and DemiAlto can be manufactured in other apertures, at 11 mm increments. Fixing:
Finishing: Polyester powder coating is a multi-stage process which applies thermo-setting resins producing a superior finish to painting. Secondary steelwork: Secondary support steelwork is designed and supplied as required. |