Specification :

LARGE FABRIC HOIST-UP DOOR CONCEPT

The customer needs
The FHU doors are designed for customers with special industrial environments where doors are exposed to moisture, cold and dust or where the door opening is very large. VLFdoor is an electrically operated vertical folding door consisting of double vinyl-coated polyester sheets with light gage steel beams in between. FHU door is an increasingly popular door concept in a variety of industry like mineral processing, fish markets, shipyard docks, aircraft hangars and more.

Basic construction
The FHU door is built to last! Its unique design features two panels or curtains of vinyl coated, polyester fabric supported by horizontal, light gage steel beams or steel frames. The door is constructed with solid, heavy duty and corrosion resistant components, and the reliable electric system includes sealed motors to prevent dirt and dust infiltration.
Function
The FHU door glides up and down in weather-sealed vertical guides which are attached to the structure and operates by lifting the bottom beam upwards, thereby stacking the intermediate beams one on top of the other, with fabric folds on both sides. Opening and closing speed is dependent on model and varies between 10 to 30 m/min. The FHU door is designed with very few moving parts and requires little or no maintenance. It is particularly applicable to satisfy heavy wind load requirements, since, due to the unique design, the horizontal beams transfer the wind load to the vertical guides and the structure. The door can therefore be designed to withstand virtually any wind load by varying the size and spacing of the beams.