For ventilation of shafts and tunnels, the HP-series centrifugal ventilators are inverter-driven for optimum performance and efficiency.
Axial Fans - single stage
For high volume at low pressure, the AX-series single stage axial fans offer a wide range of options for maximum flexibility.
Axial Fans - two stage
Two-stage contra-rotating axial fans provide high volumes of air at up to 2.7 times the pressure of a single stage fan with increased efficiency.