The canvas specifications may vary depending on the application with different thicknesses or reinforced with a vandal-proof steel cable fabric.
This is fitted, sideways, with reinforcements made with extruded aluminium structural tube. Varying the layout and quantity of these elements may increase resistance to wind.

Aeronautics industry,Naval industry,Removable hangars,Gantry cranes,Steel industry,Waste treatment plants,Grain silos,Large dimension painting cabins

Performance of the air: Wind resistance as per 12424: up to Class 4. Polyester straps pull the aluminium tubes upwards, so that the whole curtain is folded on the upper platform, which houses the motors, shafts, pulleys and pull-up mechanisms. The vertical guides are manufactured from galvanised steel plate and are fitted with a series of internal reinforcements to withstand the stresses from the wind, calculated according to customer requirements. For wider spaces, groups of individual doors can be used; the central guides are dismountable or retractable, and once group of doors have opened, the guides retract, manually or automatically, giving maximum width of passage. Once the large vehicle has entered the warehouse, the guides are returned to the correct positions and the doors operate individually. Given the complex nature of these types of doors, the specifications required for this application are determined in a technical study.