Constructed from 25mm hot rolled channel pickets interconnected by 30 x 10mm solid lattice bars. Ball bearing pulleys are attached at the top and zinc-plated guide pieces at the bottom.
Fabricated from steel channels and side plates formed into a rigid box section into which the chain connection mechanism is recessed.
Formed from 305mm x 1.2 or 1.5mm galvanised steel and ribbed for strength. Front hinge strips are attached and the interlocked assembly provides a weather tight installation.
Fabricated from steel side plates with round edge runner rails and formed into a heavy-duty 230mm high box section. The motor is surface mounted on the track for ease of access with the drive chain totally enclosed within the track.
Type B24 fabricated from 51 x 25mm double rolled steel channels.
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 50 kgs per m².
Electrical operation is by means of a direct drive 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.
The standard controls are by means of open / close / stop push buttons fitted adjacent to the door. Other types of control are available at extra cost.
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