Crawford 521 The folding door for demanding, industrial applications The Crawford 521 folding door is one of the most stable folding doors on the market. It is a well insulated folding door especially developed for demanding industrial environments. High flexibility makes it possible to install this door in almost every type of building. The door slides (folds) to the left, right, or in both directions if it is in two parts, leaving the door opening completely free. The door is made of aluminum tubular profiles, profiled steel sheets and injection moulded foam to make a stable sandwich construction. The door can be installed on either the inside or the outside of the exterior wall. A wide range of options is available to suit the appearance of the existing building. The Crawford 521 folding door has been designed to meet all operational and safety requirements in the European Directives and the standards issued by the European Standardization Committee, CEN. Reliability The Crawford folding door program has been developed in accordance with the ISO 9001 Quality Assurance System and the ISO 14001 Environmental Management System. Low maintenance costs The Crawford folding doors contain few moving parts, which means less wear and tear and, consequently, less maintenance. Electrically operated doors have a soft start and stop function which extends product lifetime and reduces service demands. High safety and security The entire door opening process is visible, reducing the risk for unnecessary collisions. A pedestrian pass-door can be integrated in any section of the main door. The pass-door can be equipped for emergency exits. Manual doors are supplied with integrated Cremone lock bolt and handle inside as standard. Cylinder locks are available as options. Working environment and ergonomics The safety features together with a high insulation value, contribute to a safe and good working environment. Manual doors are easy to operate, thanks to the ergonomic design in the small details. ASSA ABLOY, the global leader in door opening solutions Technical Data Standard size up to (W x H)1 Frame thickness rectangular, in 3 different sizes Colours standard optional Pass-door (optional) built in doorleaf doorleaf as a pass-door 1) Other sizes available on request 2) 4000 x 4000 mm, 2 + 2 3) Higher wind load on request

Manual Electrical Dimensional specifications DLW = Daylight Width DLH = Daylight Height OH = Headroom SL = Side space Left SR = Side space Right D = Depth Electrically Operated Minimal Depth (SW 553 - 1253) + 180 All Dimenssions in mm Operator left Operator Right Without cover With cover Without cover Operator Center With cover Without cover With cover All windows are double sided insulated hardened glass. The window frame is made of black polycarbonate and is burglar proof. Different sizes available: - 410 x 505 mm - 410 x 1105 mm - 245 x 555 mm - 260 x 405 mm (for pass-door) - 260 x 1005 mm...