mining contra-rotating fan

Mining contra-rotating fans integrate two impellers rotating in opposite directions to maximize static pressure rise and aerodynamic efficiency. The first impeller induces airflow and swirl, and the second straightens the flow, recovering energy lost to turbulence.

These compact fans deliver up to 30,000 CFM at pressures to 3 kPa, addressing the high-resistance conditions in drift and stope ventilation. Their robust steel impellers and sealed bearings withstand abrasive dust and moisture.

Equipped with premium IE4 motors and VFDs, they provide flow-on-demand control, adjusting speed based on gas and airflow sensors to optimize energy use and maintain safe working conditions.

Modular housing panels and quick-release impeller cartridges simplify servicing. Mining contra-rotating fans offer a reliable, high-performance solution for modern underground ventilation challenges.