Industrial warehouse and loading dock.
Rely on torsion spring device, using low power drive system, this unique design allows torsion springs to store energy more efficiently compared to extension springs, resulting in a smoother and more controlled door movement.

Door, track, hardware,counterbalance system, electronic control system, opening and closing speed 0.25m/s Door panel: double galvanized steel or aluminum sheet, option flat or orange embossed design, polyurethane foaming with density of 48kg/m³,Gasproof cold bridge interruption design, the thickness of panel can be 42 or 50mm, according to the application scenario.

Introduction
For more than 25 years, the Qimen Tech has workd to strengthen his commitment to integral quality Industrial Door and Logistic Solutions, company specialized in high-end industrial door market, products including: Industrial Sectional Door, Windproof large-width sectional door insulation sectional door, aluminum single sectional door, perspective sectional door, fire station high speed door, PVC high speed door, high speed spiral door, electric large sliding door, large flexible hangar doors, electric shutter door, leveler dock and dock shelter, logistic relavent products. The company's research and development team can guarantee the supply of various customized industrial door products, and help customers solve special application problems such as large doors, special doors and non-standard doors in the field of industrial doors.At present, there are many mature application cases in high-end intelligent manufacturing industry, logistics warehousing, medicine, food and large equipment industrial plants.
All Qimen Tech are characterized because they are endowed with values such as efficiency, quality and safety. In this way they, in different typologies of spaces, both industrial and commercial as national and international for those that they have been conceived. Qimen Tech is expanded to through a  distribution  network  that  is  in  a  continuous development.