contra-rotating axial flow fan

Contra-rotating axial flow fans feature sequential impellers on the same axis, rotating in opposite directions. The first impeller accelerates the air, and the second recovers swirl energy to increase static pressure and total airflow efficiency.

These fans achieve pressure gains up to 20% higher than single-stage axial units while maintaining a compact footprint. Ideal for applications requiring moderate to high pressures—such as local mine ventilation and process cooling—they deliver up to 50,000 CFM at pressures up to 4 kPa.

Constructed with precision-balanced aluminum or steel blades, the fan housing incorporates vibration-damping mounts and sealed bearings for longevity. IE4 motor and VFD integration enable precise speed modulation, adapting to real-time airflow requirements and reducing energy consumption.

Quick-access bearing housings and diagnostic sensors simplify maintenance. Contra-rotating axial flow fans represent an advanced solution for high-performance axial ventilation needs.