The Cross flow blower is also called a Cross flow blower. The impeller is multi-blade, long cylindrical, and has forward multi-wing blades. When the impeller rotates, the airflow enters the cascade from the opening of the impeller, passes through the interior of the impeller, and is discharged into the volute from the other side of the cascade to form the working airflow.

　　The Cross flow blower uses a relatively long barrel-shaped fan impeller to work. The diameter of this barrel-shaped fan blade is relatively large. Because of the large diameter, a relatively low speed can be used on the basis of ensuring the overall air circulation. Therefore, Reduce noise caused by high-speed operation.

　　The impeller of the cooling fan of the Cross flow blower has been dynamically balanced: just like the wheel of the car needs to be dynamically balanced, the wind wheel of the air curtain machine also needs to do this work. , and prolong the life of the fan.

　　The dynamic balance of the Cross flow blower is a time-consuming work. In fact, the final result may be to add a counterweight to a certain part of the fan wheel. But where exactly is it added? How big is it? This directly affects the service life of the cross-flow air curtain.