:: Sectional Overhead Doors

Sectional Overhead doors are insulated door panels which are constructed from 0.7mm or 0.5mm galvanized steel sheets which are bonded together with C.F.C free polyurethane foam with integral thermal breaks to provide a U. value of 0.45w/m2. The combined effect of the panel insulation properties together with the effect of the thermal bridges at the panel to panel joints results in an overall U value of 0.60w/m2. This value exceeds building regulation requirements.

END CAPS

Each panel is fitted with galvanised punched end caps, to accept adjustable roller carriers and rollers. The rollers generally have a steel shaft, nylon running surface and ball race bearing.

HINGES

Each door panel is connected to its adjoining panel by means of side hinge roller carriers and intermediate hinges at approximate 1000mm centres.

TRACKS

Cold rolled 2mm thick galvanised steel track with bends which are preformed in pairs to ensure smooth operation. The tracks are secured in the opening structure by vertical support angles and from the roof structure by fixing hangers. Spring buffers are provided to the back tracks to ensure operating cables are always tensioned.

SPRINGS

Springs calculated to suit the weight of each door are fitted to a 1" solid steel shaft and secured to the opening structure via bearing plates. The number of springs and plates depend on the size of door, we recommend a full width RSC be installed to accept these. To the ends of the shafts are fitted the grooved aluminium cable drums on which the
operating cables run.

SEALS

Flexible back rubber seals are fitted to all four sides. Top seal compresses against the lintol & bottom seal has 3 points of contact with threshold. We recommend threshold is finished with small incline away from the opening.

FURNITURE

As standard all manual doors come with Footstep handle & spring loaded shoot bolt fitted to the right hand side of the door (viewed from inside)

OPERATION

Doors in excess of 3000mm x 3000mm come with chain hoist. Doors of smaller size are provided with pull chain. 3 phase electric operation is also available at extra cost. A full range of activation and safety
equipment is available.

SAFETY DEVICES

Cable break device with adjustable mounting bracket and spring break devices fitted as standard.

OPTIONAL EXTRAS

Full width single and double glazed aluminium panoramic door panels
Vision panels
Wicket Doors
Single and three phase electric operation, complete with wide range of activation and safety equipment