Vertical sliding door

liftingsectionalhinged

Sectional insulating doors, 40 mm thick, balancing with torsion springs. The insulating counterbalanced sectional door with springs is manufactured up to 7500 mm x 5560 mm. The classic dimension of loading docks is 2.5 m wide by 3 m high; spring balanced doors for this dimension, open and close manually with minimal effort. The opening of the spring balanced sectional doors can be helped by a reduction winch. OPERATION The spring balanced sectional door is an ideal system for opening and closing without engaging the side spaces. The door can be opened by hand, thanks to the neutral equilibrium provided by the torsion springs which balance the weight of the door in any position of the stroke. Periodic maintenance (on average two – three times a year) is necessary to load the springs and maintain neutral balance in each position. If the door loses its balance, the opening does not remain in the completely open position, with the risk of breaking the lower panel due to possible collision with the lifting trolleys SERIES CONFUGURATION DOOR ELEMENTS The insulating sectional doors are complete with: curtain, vertical sliding guides and a counterbalancing spring assembly. THE COVER The mantle can be equipped with one or more portholes placed at a man’s height to be able to control the maneuvers that take place outside. PANELS are made by insulated sandwich panes with pre-galvanized, pre-painted sheets on both sides and internal ecological polyurethane foam, CFC-free. The panels are hinged together and, can turn horizontally under the ceiling if requested.