Suzhou Fenglishi Industrial Co., Ltd. aims to manufacture top-notch high-pressure fan products. In addition to its well-known 2PB series of high-pressure fan products, it also has a revolutionary production of 4PB serie, which can produce differential pressure up to 1,000mbar, which is much higher than any other high-pressure fan products. Up to now, other systems that can produce a range of differential pressure are much larger, more noisy. 4PB series of high-pressure fan adopts bearings from domestic well-known company C&U Group to make fans run more smoothly and last longer, and uses the world's most famous brand 'SKF Bearing', so that the output of high power is still stable without abnormal noise. The pressure is stronger, the volume is smaller, the noise is lower, the performance is better, and the material is more specialized, which is enough to support its application under more demanding conditions. For example, in industrial sites such as construction sites, gas and fuel injection, animal manure fermentation and aeration, and incinerators, it has easily solved all serious production problems in harsh production environments. The 4PB serie of high-pressure fan shows its extraordinary power and can work continuously for 20,000 hours without downtime and maintenance. It is the leading product in the industry of 4PB high-pressure fans!