Hard fast door is also known as rapid rolling doors, high-speed doors, the rolling door, is one kind of industrial door controlled by PLC, inverter, encoder to achieve fast lifting and accurate positioning.

High Speed Spiral Door is designed for the rapid flow of materials (to shorten the time of entry and exit). The greatest advantage of the high speed aluminum spiral door is the quick isolation ability from inside and outside, which ensures the air quality and working temperature of the workshop, in a fast, safe and reliable way.

The control box occupy an important position in the whole set of fast door

Hard fast door, it is a door with high utilization rate on the market at present, the door board is made of aluminum alloy material, divided into hollow type and heat preservation type. The most common color is silver and gray, we are usually using aluminum alloy foam door plate, the middle can be a

Aluminum alloy high speed spiral door（https://www.masterwellhk.com/Turbine-Motor-Garage-Thermal-Insulated-PU-Foam-Spiral-High-Speed-Hard-Fast-Roll-Up-Doors-pd40786166.html） is a new type of metal industrial door which integrates the characteristics of fast, energy saving, sealing, high efficiency, w

The hard fast door of Master is an international leading high-tech product developed with the latest technology. The prominent feature of the spiral door is energy saving, which can reduce the heat loss by opening and closing the doorin high speed and maintain the temperature (hot/cold) in an ideal