Spire manufactures a wide variety axial DC fan sizes for all of your cooling needs. Our balance-tech machines enable us to balance the fan blades with a greater degree of accuracy. By balancing the blades more efficiently, we are able to extend the life of the fan bearing and reduce the overall noise level of the fan. Spire DC fans range from 30 mm to 140 mm, 5 to 48 DC volt, tachometer and Pulse-width modulation (PWM) functions, with CE and TUV certification and all RoHS, WEEE and ICT-Green compliant.