What determines the air volume of large industrial fans? You may think that it must be related to the rotating speed of the fan blade. The faster the rotating speed, the greater the air volume. In fact, in addition to the speed of industrial fans, there are many factors that  affect the air volume of industrial ceiling fans.

1. Diameter of the fan blade. In the same case, the larger the diameter of the fan blade, the larger the coverage, and the larger the air volume. The diameter of the blade of Vanse large industrial fan is not invariable. It has a variety of specifications, convenient for customers to choose. The maximum diameter is 24ft, which can meet customers' various needs.

2. Fan blade design. The design of fan blades also affects the wind speed. Most fans in the market adopt plane structure, while Vanse patented variable cross-section streamlined fan blades are designed according to the equal chord length theory, moving from the center point to the blade tip along the length direction of the blade. As the linear speed at the center point gradually increases, the blade width gradually narrows from 0.97 to 0.63 ft from root to tail, so as to ensure uniform air outlet in the extension direction of the whole blade. There is no cavity in the middle which improves the wind efficiency.

3. The angle of the fan blade also affects the air volume. Most of the fan blades are flat. The conical air flow formed by the upwarping of Vanse's unique blades by 3 degrees is 30% higher than the coverage rate, with the effective coverage area of each fan more than 16,146 ft2.