Ordinary mining local fan (JK58 JK55 JK56 JK67 JK40 DJK50)

The mining bureau fan, also known as the mining local ventilation fan, is suitable for ventilation in various specifications of tunnels and tunnels, induced draft in mining areas and electric rakes, ventilation in segmented mining methods without bottom pillars, other local ventilation, and certain auxiliary ventilation. It can also be used for ventilation in occasions such as tunnel construction and underground engineering construction that require air ducts for air supply. Main features: 1. High operational efficiency. The maximum total pressure efficiency of single-stage and two-stage working wheels are 92% and 83%, respectively, while the maximum total pressure efficiency of the counter rotating type is 85%. 2. Complete specifications and strong adaptability. The air supply distance of the fan ranges from 80 meters to 600 meters, which can meet various needs of users. 3. Small in size, light in weight, and flexible and convenient to move. 4. Low noise. When users have special requirements, mufflers can be provided. Performance parameters of local ventilation fan for mining