The complete fan is fixed to the extension of the motor shaft end, and the motor is fixed to the mounting plate. 12 rearward curving arc blades, a front disc, and a rear disc make up the impeller. Between the front and back discs are welded blades with a backward curving arc. The aerodynamic performance is optimised using CFD simulation tools. Additionally, the impeller’s dynamic balance precision is up to G2.5, and there are anti-corrosion classes available from C3 to C5-M.