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A roller shutter, security shutter, coiling door, roller door or sectional overhead door is a specialized type of door or window shutter consisting of multiple horizontal slats, bars, or web systems interconnected through hinges. The mechanism involves lifting the door to open it and lowering it to close.
The speed doors are flexible and light doors for intensive industrial use. High-speed doors are door systems, mainly used in industrial applications. They are technical enhancements of the generally known sectional doors, PVC fabric doors or roller shutters. The main difference is that the durable construction provides a higher operating speed ...
A typical single-car garage roller door has a preloaded spring inside the rolling mechanism. The spring reduces the effort required to open the door. Oversized roller doors in commercial premises are not sprung (except in the US), and a manual pulley and chain system or a geared motor is used to raise and lower (roll up and roll down) the door ...
A roller shutter or sectional overhead door is one variant of this type. A tambour door or roller door is an up-and-over door made ... Door sizes are also given in ...
Today, drum motors are may be found in airport check-in conveyors and security machines, supermarket check stands, food processing conveyors and weighing equipment. Reversible drum motors are also used for roller shutter doors.
Window shutter, a solid window covering used for light control, privacy, security, protection against weather, and to enhance the aesthetics of a building; Roller shutter, a type of door or window shutter mainly used in retail shops, warehouses, and other facilities
Units 302990-993 were reduced to three-car length and converted for use as Royal Mail parcels units, with the addition of bodyside roller shutter doors, and repainted in Royal Mail red livery. Units 302996-998 were also reduced to three-car length and used as departmental sandite rail treatment units, later being reclassified as Class 937 .
VEKA AG is a German extruder of uPVC profiles for use in windows, doors, roller shutters and sliding doors headquartered in Sendenhorst, Germany. [1] Founded in 1967 as a manufacturer of shutters, it currently operates its own extrusion facilities in twelve countries.