High-efficiency, energy-saving, and low-noise JK, DJK series underground local ventilators are suitable for ventilation in various cross-sectional tunneling, ventilation of stopes and dragline galleries, ventilation in the sublevel caving method, other local ventilation, and certain auxiliary ventilation. They can also be used for tunnel construction, underground engineering, and other applications requiring ventilation with air ducts. Key features:

1. High operational efficiency. Single and double stage impeller full pressure efficiencies are 92% and 83% respectively, while the axial flow full pressure efficiency is 85%.

2. Comprehensive specifications and strong adaptability. The fan's air delivery distance ranges from 80 meters to 600 meters, catering to various different needs of customers.

3. Compact size, lightweight, and easy to move around.

4. Low noise level. A silencer can be provided for special customer requirements.