Centrifugal Fans

Centrifugal fans are also known as blowers and 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.

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 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 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.

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, backwards 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. 126-414
Mfr. Part No.GB1205PKV1-8AY.GN
BrandSunon
£13.49
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
RS Stock No. 126-420
Mfr. Part No.PMB1297PYB1-AY(2).GN
BrandSunon
£26.88
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. 841-4911
Mfr. Part No.R2E190-RA26-05
Brandebm-papst
£77.86
Each
Units
230 V ac Centrifugal AC 540m³/h RadiCal - 190 (Dia.)mm 68.5mm 190 (Dia.) x 68.5mm 2350rpm 58dB Ball - Electronic
RS Stock No. 126-391
Mfr. Part No.PMB1275PNB1-AY(2).GN
BrandSunon
£18.23
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. 830-3023
Mfr. Part No.R3G190-RC05-03
Brandebm-papst
£185.16
Each
Units
230 V ac Centrifugal AC 735m³/h RadiCal - 190 (Dia.)mm 71.4mm 190 (Dia.) x 71.4mm 3200rpm - Ball - Electronic
RS Stock No. 126-436
Mfr. Part No.PMB1212PLB2-A(2).GN
BrandSunon
£32.53
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. 217-4204
Mfr. Part No.R2E220-AA40-05
Brandebm-papst
£141.46
Each
Units
230 V ac Centrifugal AC 865m³/h R2E220 - 220mm 71mm - 2600rpm 73dB Ball - -
RS Stock No. 251-126
Mfr. Part No.REF100-11/12
Brandebm-papst
£58.85
Each
Units
12 V dc Centrifugal DC 86m³/h REF 100 - 104mm 24.9mm - 5400rpm 63dB Ball - Electronic
RS Stock No. 251-148
Mfr. Part No.RER101-36/12NHH
Brandebm-papst
£92.73
Each
Units
12 V dc Centrifugal DC 190m³/h RER 101 N - 101mm 51.7mm 101 x 51.7mm 5900rpm 74dB Ball - Electronic
RS Stock No. 802-9447
Mfr. Part No.R3G133-RA01-03
Brandebm-papst
£149.05
Each
Units
230 V ac Centrifugal AC 280m³/h RadiCal - 133 (Dia.)mm 65mm 133 (Dia.) x 65mm 3770rpm - Ball - Electronic
RS Stock No. 813-547
Mfr. Part No.RG125-19/56
Brandebm-papst
£68.60
Each
Units
230 V ac Centrifugal AC 86m³/h RG 125 N 180mm 180mm 40mm 180 x 180 x 40mm 2550rpm 58dB Ball 165 x 165mm -
RS Stock No. 217-4248
Mfr. Part No.R2S133-AE17-05
Brandebm-papst
£134.07
Each
Units
230 V ac Centrifugal AC 280m³/h R2S133 - 133mm 91mm - 2780rpm 55dB Ball - -
RS Stock No. 825-7683
Mfr. Part No.R2E220-AB06-05
Brandebm-papst
£142.76
Each
Units
230 V ac Centrifugal AC 900 m³/h, 990m³/h R2E220 - 220mm 71mm 220 (Dia.) x 71 Dmm 2700 rpm, 3050rpm 74 dB(A), 75dB(A) Ball - -
RS Stock No. 217-4254
Mfr. Part No.R2S175-AB56-01
Brandebm-papst
£141.12
Each
Units
230 V ac Centrifugal AC 445m³/h R2S175 - 175mm 69mm - 2350rpm 61dB Ball - -
RS Stock No. 825-7673
Mfr. Part No.R2E220-AA40-B8
Brandebm-papst
£175.35
Each
Units
230 V ac Centrifugal AC - R2E220 - 221.4mm 71mm 221.4 (Dia.) x 71 Dmm 2700rpm >70dB(A) Ball - -
RS Stock No. 825-7667
Mfr. Part No.R2E220-AA40-23
Brandebm-papst
£116.96
Each
Units
230 V ac Centrifugal AC - R2E220 - 221.4mm 71mm 221.4 (Dia.) x 71 Dmm 2700rpm >70dB(A) Ball - -
RS Stock No. 217-4197
Mfr. Part No.R2E180-CB28-01
Brandebm-papst
£122.97
Each
Units
230 V ac Centrifugal AC 450m³/h R2E180 - 180mm 54.5mm - 2550rpm 64dB Ball - -
RS Stock No. 217-4210
Mfr. Part No.R2E225-AT51-05
Brandebm-papst
£208.36
Each
Units
230 V ac Centrifugal AC 825m³/h R2E225 - 225mm 69mm - 2650rpm 70dB Ball - -
RS Stock No. 217-4181
Mfr. Part No.R2E133-BH66-05
Brandebm-papst
£124.84
Each
Units
230 V ac Centrifugal AC 290m³/h R2E - 133mm 91mm - 2800rpm 56dB Ball - -
RS Stock No. 739-6572
Mfr. Part No.SPD24B1QDN 19032364A
£57.78
Each
Units
24 V dc Blower DC 60cfm Spinnaker 161mm 161mm 50mm 161 x 161 x 50mm 2500rpm 57dB(A) Ball 127.9 x 144.27mm Brushless