forcing contra-rotating axial local ventilation fan

The forcing contra-rotating axial local ventilation fan employs two impellers spinning in opposite directions on a common shaft. The first impeller imparts airflow and swirl, while the second straightens the flow and recovers swirl energy, boosting static pressure and efficiency.

Compact yet powerful, this unit delivers up to 20,000 CFM at pressures up to 3 kPa, making it ideal for advancing mine headings and confined spaces where primary ventilation cannot reach. Its rugged steel housing and abrasion-resistant blades withstand dusty, humid environments.

Equipped with a premium IE4 motor and integrated variable frequency drive (VFD), the fan offers stepless speed control for on-demand ventilation, matching airflow to workface activities and saving energy during low-demand periods. Explosion-proof motor options ensure safe use in methane-prone areas.

Maintenance features include quick-release inlet cones, sealed bearings, and onboard vibration sensors for predictive diagnostics. This advanced fan design delivers targeted, high-pressure ventilation exactly where miners need it most.