The ordinary 4-72 centrifugal fan can transport air and other non self igniting, harmless to the human body, and non corrosive gases to steel. Viscous substances are not allowed in the gas, and the content of dust and hard particles should not exceed 150mg/m3. This fan has good aerodynamic performance, balanced operation, low vibration, high efficiency, and long service life. Widely applicable for indoor ventilation and air exchange in industrial and mining enterprises, large buildings, hotels and restaurants.
The B4-72 type is an explosion-proof centrifugal fan, mainly composed of aluminum impeller, casing, air inlet, and explosion-proof motor. It can be used for ventilation of flammable and volatile gases, and its performance and installation size are the same as the 4-72 type.

Zhangqiu Chuangke Fan Co., LtdEstablished in 1986, the enterprise has developed into a fan manufacturer with 30 years of experience in the design and production of the fan industry. The company adopts a modern scientific management mode, introduces process technicians who strive for excellence, equipped with advanced production equipment and strict testing methods. At the same time, the company also introduces horizontal machining centers, vertical machining centers, bidirectional CNC surface planers, CNC coordinate boring machines, CNC milling machines, numerical control planers, fully automatic CNC plasma cutting machines, dynamic balancing machines, and various high-precision fan special equipment such as lathes and presses. The process flow is strictly standardized, and the company cooperates closely with many domestic and foreign research institutions and universities to continuously absorb and improve advanced technologies at home and abroad, actively promote product upgrading and optimization, and make product quality reach advanced levels at home and abroad.

The company's main products include various centrifugal induced draft fans, stainless steel fans, CKSR series three/two blade Roots blowers, oxidation fans, vacuum pumps, industrial dust collectors, etc. Mainly used in industries such as sewage treatment, pneumatic conveying, vacuum packaging, aquaculture, cement, power plants, steel, petrochemicals, cement, mining, etc., it has the advantages of low noise, energy saving, stable quality, and long service life. The company has passed ISO9001 international quality system certification, established and improved quality assurance for design, production, manufacturing, installation, and service, and achieved independent control of the entire process from research and development design to finished product delivery, providing sufficient basis and reliable guarantee for product stability and durability.