The difference between axial and radial fans

When choosing fans, many factors must be taken into account. The two most common types of fans are axial and radial fans. It cannot be said that radial fans are better than axial fans, or vice versa. The choice for a fan is highly dependent on the application and the several circumstances.

Axial fans: large volume displacement of air

Axial fans displace a large volume of air and are meant for low-pressure systems. Despite the fact that axial fans displace a large volume of air, the size of an axial fan is an advantage. Disadvantages are the high turbulence, which is bad for the lifespan of the air distribution hoses, the low-pressure and the high noise level.

Radial fans: stable air flow in an over-pressure situation

Radial fans displace an average volume of air and are meant for high pressure systems. Radial fans have the advantage that they are very energy efficient and can realize high pressure. Disadvantages of radial fans are the weight and the dimensions. Radial fans are particularly suitable to displace air in over-pressure situations and ensure a stable laminar air flow in a channel.

Axial fans vs. radial fans

Axial EC-fan
Radial EC-fan

Main purpose


Large volume displacement of air

Average volume at high pressure

Characteristics

Blades
Wheel

Advantages


Large volume
Size

High pressure
High energy efficiency

Disadvantages

Turbulence (Life span of air distribution hoses)
Low pressure
High noise level
Weight
Dimensions

Remarks


The axial fan characteristics is meant for a low pressure system.

The radial fan is especially meant for transporting air in an over-pressure situation, with a stable laminar air flow in a channel.

Axial fans

Axial EC-fan

Main purpose

Large volume displacement of air

Characteristics

Blades

Advantages

Large volume
Size

Disadvantages

Turbulence (Life span of air distribution hoses)
Low pressure
High noise level

Remarks

The axial fan characteristics is meant for a low pressure system.

Radial fans

Radial EC-fan

Main purpose

Average volume at high pressure

Characteristics

Wheel

Advantages

High pressure
High energy efficiency

Disadvantages

Weight
Dimensions

Remarks

The radial fan is especially meant for transporting air in an over-pressure situation, with a stable laminar air flow in a channel.

Fans of Enerdes

Enerdes is the exclusive dealer of EBM Papst EC-fans for the horticulture industry. The EC-technology has both ecologically and economically excellent quality. We are happy to help you with your choice between axial fans or radial fans.