adjustable blade fan

Adjustable blade fans incorporate impeller blades mounted on a hub with a mechanism—either manual linkage or actuator-driven—allowing the blade pitch to be varied while the fan operates.

By changing blade angle, operators can optimize airflow and pressure characteristics for different operating conditions, achieving up to 15% additional efficiency gains compared to fixed-pitch fans.

When combined with VFDs and automated control, these fans support dynamic airflow management, adjusting blade pitch in real time based on system demands or sensor feedback, reducing energy consumption and noise.

Applications include HVAC systems with variable load profiles, process ventilation requiring flow tuning, and mine airflow networks with changing resistance. Robust shaft seals and precision pitch-control linkages ensure reliable, low-maintenance operation.