Tornado is specially designed to facilitate faster cable blowing. Developed by Dura-Line’s research team in collaboration with the Indian Institute of Technology, Tornado has outperformed conventional ducts in extensive field trials.
The inner spiral rib design of Tornado creates an air cushion tornado effect, imparting an increased pulling force on the cable. The cable rides on the air cushion, eliminating contact with the duct and greatly reducing the friction. Installations can see two times the cable blowing compared to conventional Smoothwall ducts.