Crawford Product Catalogue - Crawford Group - #39

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39 Basic construction Megadoor is an electrically operated vertical fabric folding door. Two sheets of PVC-coated polyester fabric are supported by horizontal, extruded aluminum sections, which are fitted to the fabric with aluminum clamp strips. The door is constructed with solid, heavy duty and corrosion resistant components and a reliable electric system. The Megadoor complies with the requirements in the harmonized European standards. Function The Megadoor slides up and down in weather-sealed vertical guides, which are attached to the building structure. It operates by lifting the bottom section upwards, thereby stacking the intermediate sections one on top or more smaller openings using the Megadoor swing-up mullion system. This multiple door system offers increased flexibility in many building designs. Service and repair Regular maintenance is needed on all doors regardless of application, simply to obtain optimal functionality at all times and to reduce the number of unnecessary repairs. Crawford’s service organisation will take care of maintenance as well as urgent repairs in an efficient way with a minimum of delay for the customer. This hangar door is controlled by a PLC based control system. Each door leaf is lifted by 2 gear motors. The fabric is white on the inside and grey on the outside. Door leaves are 290 mm thick. Thanks to the Megadoor mullion system the door can be partially or fully opened, depending on the actual need. of the other. The fabric folds into pleats on both sides. Opening and closing speed is dependent on model and varies between 0.1-0.6 m/s. The Megadoor is designed with few moving parts and requires very little maintenance. Thanks to the unique design it is particularly suitable for environments with strong winds - the horizontal sections transfer the wind load to the vertical guides, which are attached to the building structure. The door can therefore be designed to withstand almost any wind load by varying the size and spacing of the intermediate sections. Multiple door systems For certain applications and very large openings, it may be advantageous to split the door opening into two