"DC Axial Fan" mainly by the fans, motors, control switches and frameworks. Exhaust fan for industrial use AC single-phase, three-phase two kinds. Household or industrial exhaust fan suction, exhaust fan is made of a single dual-use industrial enclosed motor to adapt to harsh environments (dust, steam, fog and filthy places). TV generally use music ball shaft, requiring small size and low noise, industrial exhaust fan and powder metallurgy oil bearing. And with vibration, sound and oil mooring equipment, low noise motor operation without refueling "DC Axial Fan" fan motor long-term work. Framework commonly used industrial exhaust fan beam. Installed on the frame can be opened, closed shutters of the universe. Large industrial fan blade type, leaves 3-8 pieces ranging fan should have a number of high mechanical strength. Most "DC Axial Fan" blade using 5,6 - chip, multi-blade injection, well-balanced, low noise.