The surface of the casing is treated by plastic spraying process, which has the characteristics of environmental protection, temperature resistance and adhesion Impeller adopts multi-wing structure, which has suction force and higher efficiency Motor adopts aluminum alloy shell, which has the advantages of light weight and good heat dissipation.100% copper wire,S1 working system, 24 hours continuous operation,temperature resistant of 130 ine-rubber oil seal is installed at the end of the bearing, which can prevent dirt and other impurities from entering the bearing. In addition, it can also limit the leakage of lubricating oil in the bearing and prolong the service life of the bearing The design of this product allows the turbo fan toairflow to cool your equipment faster, for applications with limited clearance