1. frame: Made of Q235 steels; Select proper material to make the general frame of the door leaves be fitted with reinforcing ribs.
2. Face panel and back panel: Made of bi-layer color steel sheet filled with polyurethane foaming insulation plate; The thickness of the color steel sheet is 4mm, insulation plate is 40mm.
3. Drive: Reducing motor on the door; The super-large door can adopt double-group drives.
4. Control: Adopt variable frequency controller
5. Safety measures: Infrared detection, safety air bag, emergency switch.