HDS series of permanent magnet type variable frequency big ceiling fans unique wing design, straight blade diameter from 2 ~ 7.3 m, adopting the principle of aerodynamics and advanced technology manufacturing blades wing, formed by strong air agitation ability of circulation flow field, produce like the breeze system of nature, the body will feel three-dimensional wind from all directions, increased sweat evaporation area, increase your comfort level. At the same time avoid the use of traditional high-speed fan in the direction of the wind all year round, causing a variety f human health problems, greatly improve the comfort of the environment. HDS series fans can be combined with the actual needs of different occasions to adjust the wind volume, the wind speed in the range of 1m-5m /s can be arbitrarily adjusted.In the open space, an industrial energy-saving fan can cover a
maximum area of 1700m2.