Harmonious Door high speed roller shutter is latestest developed exclusive product, it provide clear view and high security for customers as well as high speed roll up cabilitities.                       

The high speed roller shutter has many advantages such as anti-theft,anti-impact, anti-corrosion anti-aging, flame retardant, anti-UV and other functions. It is suitable for most installation occasions and widely used in industrial and commercial areas.  

The high speed roller shutter is composed of polycarbonate slats and aluminum connections and high speed roller shutter accessories. which The overall frame is cut by a large laser cutting machine, and the appearance is beautiful and generous.     

The control system adopts asynchronous motor and frequency conversion device, and the limit system adopts multi-turn absolute encoder actual full-range absolute value limit technology, and is equipped with a bright blue screen LCD pure Chinese display as a man-machine dialogue window, which is standard and easy to operate And low maintenance costs and other features, to ensure trouble-free operation of more than 150,000 times a year, with a daily average of less than 500 times.