Machine using CAD / CAM design, with low investment costs, air volume, low noise, low energy consumption, stable operation, long life, high efficiency, shutters automatically shuts dust, water, nice; to the hair, modern workshop is the best choice for cooling ventilation, but also ventilation. Environmental protection, energy saving ventilation and cooling suction fan will become mainstream devices market. Suction fan - suction fan structure referenced foreign advanced technology produced IP54, F class insulation aluminum dedicated fan motor. Have less effect with overload protection, long life, smooth operation, low noise. 500 years without the use of so-called decomposition of FRP (fiberglass) for the fan casing material, with anti-acid, anti-corrosion, no rust, long service life characteristics, while reducing the overall result due to the phenomenon of multi-metallic materials and resonate. Suction fan cooling principle: the suction fan is the use of air convection cooling principle of negative pressure ventilation, the installation location of the door or window --- natural fresh air, indoor outdoor hot gas quickly forced out Any questions can improve poor ventilation, cooling ventilation effect of up to 90% -97%. Powerful suction fan advantages: 1, low investment, low energy consumption. The same cooling rate, one-time investment of about air conditioning sixth, tenth about air conditioning running costs; 2, the cooling effect is significant, can match the temperature dropped to about 28 degrees with the wells if the body temperature the effect of water as a source of better water tank, can match the effect of air conditioning; 3, the air is fresh, moist. Up to 99% of air cleanliness application describes a suction fan, exhaust ventilation for: installed outside the shop window, usually selected downwind, out ventilation, odor of gas extraction; more general chemical applications. 2, with the wet curtain use: used to cool the heat of the summer workshop, no matter how hot your workshop, wet curtain - suction fan systems can make your workshop temperature dropped to about 30C, and a certain humidity. 3, suction fan Scope: A, suitable for high temperature or smell of the workshop: such as heat treatment plant, casting plant, plastics plant, aluminum factory, shoe, leather factory, electroplating plants, a variety of chemical plants. B, applicable to labor-intensive enterprises: such as garment factory, various assembly shop, internet cafe. C, ventilation and cooling greenhouse horticulture, livestock farms cool. D, especially for applications that require cooling also requires a certain humidity locations. Such as cotton, wool mills, jute mill, weaving plants, chemical plants, Jingbian, bomb factory, knitting, silk factory, hosiery and other types of mills. E, suitable for warehousing and logistics 4, exhaust fan for use: The general exhaust fan (commonly known as winnowing fan) relatively poor efficacy, an exhaust fan to blow less than a few people ,, suction fan is not the case, either on the ground or hung with in the air with. 1000 square meters workshop generally use four, that room full of wind effect.