"220V Cooling Fan" is an important component engineering mechanical cooling system essential to choose a direct impact on the fan cooling effect, noise, fuel economy and engine power mainframe cooling system, etc. Therefore, the host, the engine and the host matching the design of the cooling system, proper cooling fan rational choice is a very important job. Construction Machinery "220V Cooling Fan" There suction type and hair in two forms, the main principles of choice is the formation of the air flow direction of the fan air flow direction must forward windward coincides with the host. The wheel loader engine rear blower fan is used, while bulldozers front-engine, so the use of suction-type "220V Cooling Fan", backhoe loaders are commonly used suction fan.