YBT series mining local axial flow fans are mainly used as press-in local fans in coal mines with explosive danger of gas or coal dust. This product is also suitable for metal mines, chemical mines, tunnels and other factories and mines where fans are used. . The temperature of the conveying medium should not exceed 40℃, the temperature should not exceed 95±3% (25℃) and non-corrosive. This series of fans are explosion-proof, and the explosion-proof mark is ExdI.