Constructed from double channel rolled pickets interconnected by galvanised steel lattice bars. Ball bearing pulleys are attached at the top and zinc-plated guide pieces at the bottom.
Galvanised rolled steel section reinforced for handles, locks and drive chain connection.
Formed from 230mm x 1.2mm galvanised steel and interconnected by front and back hinge strips.
Galvanised steel rolled section forming a box-type track 90mm deep.
Type B28 galvanised steel “m” section.
The majority of parts are galvanised with other parts prime painted. Polyester powder coating to a range of standard RAL colours is available at extra cost.
Approximately 32 kgs per m².
Electrical operation is by means of a 3 phase geared motor mounted on the top track. Manual operation in the event of power failure is by means of hand chain accessible from low level. A maintained and protected AC supply is to be provided by others.
The standard controls are by means of open / close / stop push buttons fitted adjacent to the door.
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