Roof non-power fan explosion proof fan

1.Automatic driving by wind, working 24 hours of a day

2.High sensitivity, the blades drive with slight wind, the difference in temperature also makes the blade driving.

3.Stable rotary, mute sounds so no influence of the workshop

4.Complete senior axis bearing, no lubrication

5.Corrosion resistant, acid proof and alkali proof, long time using

6.Diameter 500mm,600mm Material : stainless steel or colored sheet.