K series mine (withdrawable rotating) axial fan (hereinafter referred to as the fan), is based on the ore ventilator, through technical improvements, to improve the structure and improve the performance and expand the machine number and a successful design. Higher fan operating efficiency, lower noise and greater range of performance, energy-saving effect is more significant. While the main duct features a steady flow loop device, no hump curve, it can ensure the stable operation of the fan can be in any resistance state. To expand the performance range fan, non-coal mines to meet the needs of different kinds and sizes, low, medium, high resistance and large, medium and small air volume of each type of ventilation network, may choose to operate in the high zone of main fan, auxiliary fan and multistage stations fan, fan use 0.40,0.45 and two kinds of wheels and spin ratio structure type, namely K40, K45, DK40, DK45. Fans respectively 4, 6 and 8 pole motors, can be composed of a total of 140 standard models, forming a huge fan series group, with the national mine ventilation network reasonable match to obtain high efficiency operation. 

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