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. 332-5683
Mfr. Part No.QLZ06/1800 A297-2518L-93UK
Brandebm-papst
SGD105.62
Each
units
230 V ac Tangential AC 130m³/h QLZ 96mm 251mm 83mm 96 x 251 x 83mm 1400rpm 40dB Sleeve 154 x 16.5mm -
RS Stock No. 217-4181
Mfr. Part No.R2E133-BH66-05
Brandebm-papst
SGD279.07
Each
units
230 V ac Centrifugal AC 290m³/h R2E - 133mm 91mm - 2800rpm 56dB Ball - -
RS Stock No. 825-7661
Mfr. Part No.R2E220-AA40-71
Brandebm-papst
SGD281.88
Each
units
230 V ac Centrifugal AC - R2E220 - 221.4mm 71mm 221.4 (Dia.) x 71 Dmm 2700rpm >70dB(A) Ball - -
RS Stock No. 712-5244
Mfr. Part No.WT24B3 19031102A
SGD74.72
Each
units
24 V dc Blower DC 15cfm Whiffet 80mm 80mm 32mm 80 x 80 x 32mm 4050rpm 52.2dB(A) Ball 71.37 x 71.37mm Brushless
RS Stock No. 217-4248
Mfr. Part No.R2S133-AE17-05
Brandebm-papst
SGD281.66
Each
units
230 V ac Centrifugal AC 280m³/h R2S133 - 133mm 91mm - 2780rpm 55dB Ball - -
RS Stock No. 712-5241
Mfr. Part No.WT12B3 19031101A
SGD74.72
Each
units
12 V dc Blower DC 15cfm Whiffet 80mm 80mm 32mm 80 x 80 x 32mm 4000rpm 52.2dB(A) Ball 71.37 x 71.37mm Brushless
RS Stock No. 332-4107
Mfr. Part No.G2E120-AR77-A6
Brandebm-papst
SGD445.13
Each
units
230 V ac Centrifugal AC 255m³/h G2E120 184mm 178mm 115mm 184 x 178 x 115mm 2350rpm 61dB Ball 68 x 100mm -
RS Stock No. 482-089
Mfr. Part No.RL90-18/00
Brandebm-papst
SGD129.70
Each
units
115 V ac Centrifugal AC 42m³/h RL 90 N 120.6mm 120.6mm 37mm 120.6 x 120.6 x 37mm 2550rpm 60dB Sleeve 104.8 x 100.8mm -
RS Stock No. 434-9848
Mfr. Part No.QLK45/1818A4-3030LH-16WT
Brandebm-papst
SGD197.45
Each
units
230 V ac Tangential AC 220m³/h QLK 79mm 492mm 71mm 71 x 510 x 79mm 2050rpm - - - -
RS Stock No. 468-4725
Mfr. Part No.RL90-18/56
Brandebm-papst
SGD171.27
Each
units
230 V ac Centrifugal AC 40m³/h RL 90 N 120.6mm 120.6mm 37mm 120.6 x 120.6 x 37mm 2450rpm 56dB Ball 104.8 x 100.8mm -
RS Stock No. 126-177
Mfr. Part No.PMB1275PNB4-AY(2).GN
BrandSunon
SGD36.15
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
RS Stock No. 825-7686
Mfr. Part No.R2E220-AA44-98
Brandebm-papst
SGD251.72
Each
units
115 V ac Centrifugal AC - R2E220 - 221.4mm 71mm 221.4 (Dia.) x 71 Dmm 2700rpm >70dB(A) Ball - -
RS Stock No. 813-569
Mfr. Part No.RG160-28/56S
Brandebm-papst
SGD259.53
Each
units
230 V ac Centrifugal AC 202m³/h RG 160 N 220mm 220mm 56mm 220 x 220 x 56mm 2750rpm 66dB(A) Ball 203 x 203mm -
RS Stock No. 826-1109
Mfr. Part No.D2E097-CB01-02
Brandebm-papst
SGD364.81
Each
units
230 V Centrifugal AC - D2E 097 - - - - - - - - -
RS Stock No. 221-083
Mfr. Part No.RG160-28/14N
Brandebm-papst
SGD285.03
Each
units
24 V dc Centrifugal DC 209m³/h RG 160 N 220mm 220mm 56mm 220 x 220 x 56mm 2850rpm 66dB Ball 203 x 203mm Electronic
RS Stock No. 126-442
Mfr. Part No.PMB2475PNB4-AY(2).GN
BrandSunon
SGD35.57
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
RS Stock No. 892-3620
Mfr. Part No.150908-50
BrandAmetek
SGD751.43
Each
units
24 V dc Blower DC 45.07m³/h Microjammer 3.0" 74.7mm 77.7mm 88.1mm 77.7 x 74.7 x 88.1mm - - - - Brushless
RS Stock No. 250-965
Mfr. Part No.RL65-21/12H
Brandebm-papst
SGD91.49
Each
units
12 V dc Centrifugal DC 61m³/h RL 65 93.5mm 97mm 33mm 93.5 x 97 x 33mm 4900rpm 66dB Ball 71 x 71mm Electronic
RS Stock No. 202-5416
Mfr. Part No.MF50151VX-B00U-A99
BrandSunon
SGD34.63
Each
units
12 V Centrifugal Dc 5.4cfm MF - - - 50 x 50 x 15mm - - - - -
RS Stock No. 892-3431
Mfr. Part No.119155-52
BrandAmetek
SGD2,349.53
Each
units
240 V ac Blower Ac 455.33m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless