K-MK type centrifugal fan is generally used in forging furnaces and high-pressure forced ventilation, and is widely used in material conveying. The operating temperature shall not exceed 80 degrees Celsius, and the dust and hard particles contained in the medium shall not be greater than 150mg/m3. The fan is engineered into two rotating directions. From the perspective of the motor, the rotation direction of the fan impeller is right-rotating if it is rotated clockwise, and left-rotating if it is rotated counterclockwise. The transmission mode of the fan is A and D type.