we can provide DC cooling fan, AC cooling fan and blower fan
please kindly advise the size, voltage, the type of bearing, the speed of fan , or air flow.
now we have two types bearing for the fan, sleeve and ball, working time of sleeve is for 30,000 hours, the ball is for 50,000 hours.
the speed and voltage are detected by the tachometer, air flow is found by wind tunnel.
100% total testing before each of every product leaves our factory.