"AC Axial Fan" refers to the number of products speed rotating fan blades per minute, the unit is rpm. Fan speed is determined by the motor inside the coil turns, voltage, number of fan blades, angle, height, diameter and bearing systems. Fan speed and quality are not necessarily linked. "AC Axial Fan" can be measured by the rotational speed of the internal speed signal can be measured externally.
"AC Axial Fan" variety, style and more!
   Axial: air outlet direction of the axis in the same direction. ?
   Centrifugal: the use of centrifugal force will throw out the airflow along the blade. ?
   Francis: With more than two kinds of air ways.