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Fans & Blowers

Our fan ranges have multifaceted purpose across almost all industries

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What is an axial fan?

Axial fans are a type of fan, produced and manufactured by Fans and Blowers, used for moving air or gas in a specific direction. They belong to the broader category of fans, which are designed to create airflow and ventilation in various applications.

Axial fans are named for the way they move air along the axis of rotation. They consist of a set of blades, typically arranged in a cylindrical or disc shape, and are mounted on a central hub. When the fan is powered on, the blades rotate, drawing air in parallel to the axis and pushing it out in the same direction.

What are axial fans used for?

One key characteristic of axial fans is their ability to generate a high volume of airflow, making them suitable for applications that require moving large volumes of air. They are commonly used in cooling systems, such as HVAC (heating, ventilation, and air conditioning) systems, industrial cooling towers, computer cooling systems, and automotive engine cooling.

Axial fans come in various sizes and configurations to accommodate different airflow requirements. They can be designed as propeller fans, where the blades are similar to those of an aeroplane propeller, or as tube-axial fans, which have the blades enclosed in a cylindrical housing. The fan's performance is influenced by factors such as blade design, rotational speed, and the motor driving the fan.

It's important to note that axial fans are primarily used for moving air or gas in a straight line, without changing the direction significantly. In contrast, centrifugal fans (which we also manufacture), another common type of fan, are more effective in generating higher pressure and changing the direction of airflow.

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Frequently Asked Questions

What are the common applications of axial fans in industrial settings?

Axial fans are commonly used in a variety of industrial applications, including:


- HVAC systems for ventilation and cooling

- Cooling electronic equipment and machinery

- Exhaust systems for removing fumes and gases

- Air circulation in large spaces like warehouses and factories

- Agricultural ventilation for livestock and greenhouse environments

How do I select the right axial fan for my application?

Choosing the right axial fan involves considering several factors:

 

- Airflow requirements: Determine the volume of air that needs to be moved, typically measured in cubic feet per minute (CFM).
- Pressure requirements: Understand the static pressure needs of your system.
- Environmental conditions: Consider factors like temperature, humidity, and the presence of corrosive or explosive gases.
- Size and mounting: Ensure the fan fits the available space and can be mounted appropriately.
- Noise levels: Select a fan that operates within acceptable noise limits for your application.

What maintenance is required for axial fans?

Regular maintenance is essential to ensure the longevity and efficiency of axial fans. Key maintenance tasks include:

 

- Cleaning: Remove dust and debris from the fan blades and housing to maintain optimal airflow.
- Inspection: Regularly inspect for signs of wear and tear, such as cracks or loose parts.
- Lubrication: Check and lubricate bearings as needed to prevent excessive friction.
- Alignment: Ensure the fan blades are properly aligned and balanced to avoid vibrations and noise.
- Electrical components: Inspect and maintain electrical connections and motors to prevent malfunctions.

What are the advantages of using axial fans in industrial applications?

Axial fans offer several benefits, including:

 

- High airflow: They are efficient at moving large volumes of air, making them suitable for ventilation and cooling.
- Compact design: Axial fans typically have a smaller footprint compared to centrifugal fans, making them easier to install in confined spaces.
- Energy efficiency: They generally consume less power, especially in applications requiring high airflow with low pressure.
- Versatility: Axial fans can be used in a wide range of environments and applications.
- Cost-effective: They are often more affordable than other types of fans, both in terms of initial cost and ongoing operating expenses.

What distinguishes an axial fan from a centrifugal fan?

Axial fans move air or gas parallel to the fan's axis of rotation, generating high airflow rates with low pressure. In contrast, centrifugal fans move air perpendicularly to the axis, producing higher pressure but lower airflow rates. Axial fans are ideal for applications where large volumes of air need to be moved efficiently, such as ventilation and cooling.

What are the key components of an axial fan?

The main components of an axial fan include:

 

- Blades: The air-moving parts, typically designed to maximise airflow while minimising noise.
- Hub: The central part to which the blades are attached.
- Motor: Powers the fan, driving the rotation of the blades.
- Housing: The structure that supports and protects the fan components, often designed to direct airflow.
- Mounting brackets: Used to install the fan securely in its operational location.

How do I determine the correct size and specification for an axial fan?

To select the right axial fan, consider the following factors:

 

- Airflow (CFM): Measure the volume of air required for your application.
- Static pressure: Assess the resistance to airflow in your system.
- Operating environment: Account for temperature, humidity, and the presence of corrosive or flammable substances.
- Noise levels: Ensure the fan operates within acceptable noise limits for your environment.
- Space constraints: Verify that the fan fits within the available space and can be installed properly.

What types of Axial Fans are there?

Fans and Blowers have 3 types of fans:

 

Direct Driven Axial Fan

Belt Driven Axial Fan

Bifurcated Axial Fan

 

  • Flow rates up to 22,500m3/h
  • Short and long-cased versions
  • Little Noise
  • Withstand High Temperatures