Centrifugal Fans

Centrifugal fans are also known as blowers and normally constructed as a fixed drum shape composed 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.


Features and Benefits


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 all the up to 11500 rpm. Both backward and forward facing fan blades


Factors to consider when choosing:


  • Pressure requirements

  • Flow requirements

  • Gas consumption

  • Inlet temperature

  • Ambient Temperature

  • Operating altitude of the blower

Where are blowers 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.


In Centrifugal fans the 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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Description Price Supply Voltage Blower Type AC or DC Operation Air Flow Series Height Width Depth Dimensions Fan Speed Noise Level Bearing Type Mounting Hole Spacing Commutation Type
RS Stock No. 126-436
Mfr. Part No.PMB1212PLB2-A(2).GN
BrandSunon
€32.62
Each
units
12 V dc Blower DC 35.9cfm PMB 120mm 120mm 32mm 120 x 120 x 32mm 2500rpm 53.8dB(A) Ball 105 x 105mm Brushless
RS Stock No. 126-408
Mfr. Part No.PMB2475PNB1-AY(2).GN
BrandSunon
€20.36
Each
units
24 V dc Blower DC 13.6cfm PMB 75.7mm 75.7mm 30mm 75.7 x 75.7 x 30mm 3400rpm 43.5dB(A) Ball 61.8 x 48.2mm Brushless
RS Stock No. 126-127
Mfr. Part No.PMB4897PYB1-AY(2).GN
BrandSunon
€28.69
Each
units
48 V dc Blower DC 30.5cfm PMB 97.2mm 94.4mm 33mm 94.4 x 97.2 x 33mm 3600rpm 55.8dB(A) Ball 78 x 64mm Brushless
RS Stock No. 126-420
Mfr. Part No.PMB1297PYB1-AY(2).GN
BrandSunon
€26.92
Each
units
12 V dc Blower DC 30.5cfm PMB 97.2mm 94.4mm 33mm 94.4 x 97.2 x 33mm 3600rpm 55.8dB(A) Ball 78 x 64mm Brushless
RS Stock No. 126-414
Mfr. Part No.GB1205PKV1-8AY.GN
BrandSunon
€13.46
Each
units
12 V dc Blower DC 5.7cfm GB 50mm 50mm 20mm 50 x 50 x 20mm 5200rpm 35dB(A) Vapo 43 x 40mm Brushless
New
RS Stock No. 202-5417
Mfr. Part No.MF50201V1-1B000U-A99
BrandSunon
€16.68
Each
units
12 V - dc 5.8cfm MF - - - 50 x 50 x 20mm - - - - -
New
RS Stock No. 202-5420
Mfr. Part No.MF60151V1-1B000U-A99
BrandSunon
€22.45
Each
units
12 V - dc 5.7cfm MF - - - 60 x 60 x 15mm - - - - -
RS Stock No. 126-391
Mfr. Part No.PMB1275PNB1-AY(2).GN
BrandSunon
€18.22
Each
units
12 V dc Blower DC 13.6cfm PMB 75.7mm 75.7mm 30mm 75.7 x 75.7 x 30mm 3400rpm 43.5dB(A) Ball 67.1 x 45.7mm Brushless
RS Stock No. 126-442
Mfr. Part No.PMB2475PNB4-AY(2).GN
BrandSunon
€20.36
Each
units
24 V dc Blower DC 7.5cfm PMB 75.7mm 75.7mm 30mm 75.7 x 75.7 x 30mm 1900rpm 28dB(A) Ball 61.8 x 48.2mm Brushless
New
RS Stock No. 202-5416
Mfr. Part No.MF50151VX-B00U-A99
BrandSunon
€21.71
Each
units
12 V - dc 5.4cfm MF - - - 50 x 50 x 15mm - - - - -
New
RS Stock No. 202-5433
Mfr. Part No.PF75302B1-1B000U-A99
BrandSunon
€31.20
Each
units
24 V - dc 15.5cfm PF - - - 75 x 75 x 30mm - - - - -
New
RS Stock No. 202-5414
Mfr. Part No.MF50151V2-B00U-A99
BrandSunon
€21.71
Each
units
12 V - dc 5.1cfm MF - - - 50 x 50 x 20mm - - - - -
RS Stock No. 126-133
Mfr. Part No.PMB2497PYB1-AY(2).GN
BrandSunon
€26.92
Each
units
24 V dc Blower DC 30.5cfm PMB 97.2mm 94.4mm 33mm 94.4 x 97.2 x 33mm 3600rpm 55.8dB(A) Ball 78 x 64mm Brushless
New
RS Stock No. 202-5432
Mfr. Part No.PF75301B1-1B000U-A99
BrandSunon
€24.01
Each
units
12 V - dc 15.5cfm PF - - - 75 x 75 x 30mm - - - - -
RS Stock No. 126-177
Mfr. Part No.PMB1275PNB4-AY(2).GN
BrandSunon
€22.66
Each
units
12 V dc Blower DC 7.5cfm PMB 75.7mm 75.7mm 30mm 75.7 x 75.7 x 30mm 1900rpm 28dB(A) Ball 61.8 x 48.2mm Brushless