Applicable to high-use or forklift traffic areas as well as loading docks and lower-use areas, 5400 series features exchangeable mesh, vinyl, and clear panels. Door automatically resets after impact or blow out, and all panels are resistant to UV rays, rotting, tearing, and mildew. Sprayproof and dustproof operator features soft start and stop, can operate 200 times/hr, and facilitates installation with direct quill drive to door. Wind load rating to 45 mph is based on 10 x 12 ft test door.