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STANDARD XHD MODEL
The Standard XHD Model features the exclusive RubbAir patented construction with the flexible rubber I-beam extrusions that made RubbAir famous. Adhesive-bonded inside the door, the I-beam gives the door historisis or "memory": the ability of the door to flex upon impact and then return to its original position or shape. In addition to these features, the Standard XHD Model has additional durability components, namely two additional flexible internal strengtheners and two more external layers of fabric-reinforced vinyl. These are bonded inside the hinge side of the door-body. Doors over 8’ high also include reinforcing stiffeners inside the top of the door-body. Further, the mounts used to secure gravity-action cam and cam follower hardware to the door body are an offset design and are steel instead of aluminum for greater strength and prevent the diagonal cracking of doors that is common with other traffic doors. These features combine to create the most durable impact traffic door on the market today! They provide extra strength at the flex-stress points of doors, especially in quick-turn flow-of-traffic areas, where wide loads go through narrow openings and in very high-volume traffic applications. APPLICATIONS
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