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Centrifugal fans are also known as blowers and are normally constructed as a fixed drum shape with a number of fan blades (impellers), the impellers rotate and blow air or gas from one place to another. Centrifugal fans are used wherever airflow is needed for aspirating, cooling, ventilating and conveying. Centrifugal fans can be single or multi-stage blowers: Single-stage blowers are ideal when a uniform airflow is required, Multi-stage is more suited when a varying airflow is required at a fixed pressure. You can find out more in our [centrifugal fans guide](/web/content/discovery/ideas-and-advice/centrifugal-fans-guide).

### Features and Benefits of Centrifugal Fans

Various IP ratings are available, including IP68, if it needs to be placed in a harsh environment. A choice of different fan speeds from 780 rpm to 11500 rpm.

**Factors to consider when choosing:**

- Pressure requirements
- Flow requirements
- Gas consumption
- Inlet temperature
- Ambient Temperature
- Operating altitude of the blower

### Where are blower fans used?

Blowers are widely used in all manner of everyday items, such as:

- HVAC systems
- Dust control
- Pressure Blowers
- Air Conditioners
- Vacuum cleaners
- Air conveyor systems

#### What is the difference between a centrifugal fan and an axial fan?

**Axial fans** are used for high flow rates and low pressures with flow rate parallel to the axis of the fan. The blades of these fans are available in different shapes such as aerofoil, sickle paddle, and various pitch. They are commonly used for cooling and ventilation.

**Centrifugal fans** airflow changes direction twice, once when it enters the fan and secondly when it leaves the fan, These fans have paddle blades forward curved blades, backward curved blades and radial blades. Centrifugal fans move air radially. The airflow created passes through a system of tubes or ducts which creates a higher pressure airflow, making them ideal for high-pressure applications such as cooling and heating systems, dust control, transporting materials and air conveyor systems.



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Centrifugal Fans & Blower Fans |  RS

Centrifugal Fans

Ametek Windjammer - Bypass 5.7" Series Centrifugal Fan 455.33m³/h,...

Ametek Minijammer 5.0" Series Centrifugal Fan 57.77m³/h 127 x 127 x 71.6mm

Centrifugal Fans vs Axial Fans: What is the Difference?

Fan Inlet Ring for use with Centrifugal Fans

RS PRO Centrifugal Fan 2.4cfm, DC Operation

Ametek Windjammer - Bypass 5.7" Series Centrifugal Fan 237.68m³/h,...

Ametek Windjammer - Bypass 5.7" Series Centrifugal Fan 305.82m³/h,...

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Blower Centrifugal Fans | RS

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Papst Centrifugal Fans | RS Components

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Ametek Centrifugal Fans | RS

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Sanyo Denki Centrifugal Fans | RS

<p>Sanyo Denki's centrifugal fans, also referred to as blowers, can be used for heating, ventilation and cooling (HVAC), for example in building ventilation systems. Sanyo Denki's range of centrifugal fans includes fans with varying speeds, ingress protection ratings, sizes, pressure ratings, and many more elements, so that you can choose a fan that is the most suited to the specific environment it is required for. Sanyo Denki blower fans can be used to move air, raw materials or gas through processes and systems, resulting in an end product being produced. Sanyo Denki centrifugal fans are individually designed to have their own unique performance characteristics. The fan you choose for your process is dependent on the criteria you require, for example, airflow volume, static pressure and what the fan is processing. Once you have decided your variable, choosing a fan from Sanyo Denki's comprehensive range will be easy. Whatever blower fan you choose, you can rely on Sanyo Denki to provide a high quality, reliable product, that meets the relevant safety standards.</p><h2>What applications are Sanyo Denki centrifugal fans suitable for?</h2><p>Sanyo Denki blower fans accommodate a variety of applications including HVAC systems, vacuums, air conditioners, air conveyor systems, dust collection, chemical processing, corrosive gas handling, process cooling and heating, fume control, and more.</p>

Ametek Centrifugal Fans

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