contra-rotating local fan

Contra-rotating local fans employ two impellers rotating in opposite directions on the same shaft to amplify static pressure and airflow in localized areas, such as stopes and development drifts.

Compact and portable, these fans deliver up to 15,000 CFM at pressures to 3 kPa. Rugged steel housings and sealed bearings withstand abrasive dust and moisture without frequent service.

Equipped with IE4 motors and optional VFDs, they provide adaptive spot ventilation, adjusting speed based on gas and airflow sensor inputs to maintain safe conditions and conserve energy.

Quick-release mounting flanges and external grease ports simplify repositioning and maintenance. Contra-rotating local fans offer a high-performance solution for demanding underground ventilation tasks.