Shuotian high speed doors are designed for fast open and close, allowing people and/or equipment to move quickly through the opening. This type of doors is ideal for large size opening and designed for high performance daily use both internally and externally with minimal maintenance. The door operated as speed > 1m/s, this model doors offers beneficial energy saving in both commercial and industrial application. In additional it reduces noise and dust from nearby working areas. It was ideally choice for many commercial and industrial application..