Rytec's new Spiral high-speed security door combines speed, aesthetics and security in one package. Ideal for exterior doorways with moderate to heavy vehicle traffic, the Spiral door opens at a remarkable five feet per second for improved traffic flow and shop efficiency. Driven by a variable-speed AC drive, and equipped with two photo-eyes and an auto-reverse edge, Spiral's high-speed operation saves energy by minimizing infiltration through the doorway.