Used with medium-low volume flow rate. Suitable to work with long-axial axle. The most quite among centrifugal fans. Used with clean air and low of suspension air. Single and Double propeller are available.
Propellers are available.
Adjustable volume flow rate and resistance. Blower working is none overload. Able to vacuum dusts from several places to one. Quite and more efficient in Airfoil propeller. Single and Double propeller are available.