
Coal Mine Underground Explosion-Proof Axial Flow Ventilation Fan. High Efficiency & Energy Saving: Counter-rotating design achieves up to 92% efficiency, reducing power consumption and saving energy. Explosion-Proof Safety: Certified with MA safety mark, RoHS, UR, ISO, CE, and CCC for safe underground coal mine use. Long Distance Ventilation: Effective air supply up to 2000m without moving the fan, reducing labor intensity and time. Low Noise Operation: Features muffling structure and axial flow design for low noise performance in mining environments. Flexible Customization: Offers customizable case colors, impeller materials, and production schedules of 1-5 days. Versatile Application: Suitable for coal mines, metallurgy, chemical industry, shipbuilding, and other high-pressure ventilation. Complete Specifications: Serialized product with 22 models, covering air volume from 133 to 1170 m3/min and power up to 75KW. Robust Construction: Made of iron with counter-rotating impellers driven by two explosion-proof motors for durability.