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. 126-391
Mfr. Part No.PMB1275PNB1-AY(2).GN
BrandSunon
SGD35.75
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. 841-4886
Mfr. Part No.D2E146-HT59-02
Brandebm-papst
SGD391.31
Each
units
230 V Centrifugal AC 910m³/h D2E 146 216mm 220mm 199mm 216 x 220 x 199mm 1600rpm - Ball 138 x 110mm Electronic
RS Stock No. 787-4013
BrandRS PRO
SGD47.00
Each
units
24 V dc Blower DC 10cfm - 75mm 75mm 30mm 75 x 75 x 30mm 3000rpm 38dB(A) Ball - Brushless
RS Stock No. 825-7718
Mfr. Part No.R2E225-BD92-37
Brandebm-papst
SGD455.56
Each
units
230 V ac Centrifugal AC 1340m³/h R2E225 - 225mm 99mm 225 (Dia.) x 99 Dmm 2950rpm 71dB(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. 825-7585
Mfr. Part No.R1G133-AA17-02
Brandebm-papst
SGD305.90
Each
units
24 V dc Centrifugal DC 360m³/h R1G133 - 133mm 91mm 133 (Dia.) x 91 Dmm 3900rpm 63dB(A) Ball - Electronic
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. 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. 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. 841-4905
Mfr. Part No.G2E180-EH03-01
Brandebm-papst
SGD845.36
Each
units
230 V ac Centrifugal AC 755m³/h G2E180 283mm 261mm 125mm 283 x 261 x 125mm 1950rpm - Ball 120 x 110mm Electronic
RS Stock No. 243-6439
Mfr. Part No.G2G085-AB04-10
Brandebm-papst
SGD391.57
Each
units
12 V dc Centrifugal DC 80m³/h G2G085 117mm 127mm 76mm 117 x 127 x 76mm 2300rpm 52dB Ball 58 x 66mm Electronic
RS Stock No. 892-3566
Mfr. Part No.150400-50
BrandAmetek
SGD1,507.31
Each
units
24 V dc Blower DC 221.74m³/h Windjammer - Bypass 5.7" 149.4mm 149.4mm 153.5mm 149.4 x 149.4 x 153.5mm - - - - Brushless
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. 221-077
Mfr. Part No.RG160-28/12N
Brandebm-papst
SGD386.48
Each
units
12 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. 223-095
Mfr. Part No.G2E140-AB17-50
Brandebm-papst
SGD567.24
Each
units
240 V ac Centrifugal AC 230m³/h G2E140 261mm 226mm 130mm 261 x 226 x 130mm 1400rpm 58dB Ball 105 x 115mm -
RS Stock No. 175-7066
Mfr. Part No.QG030-148/12
Brandebm-papst
SGD181.05
Each
units
12 V dc Tangential DC 75m³/h QG 030 47.5mm 201mm 50mm 47.5 x 201 x 50mm 4400rpm 49dB Ball - Electronic
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. 514-2979
Mfr. Part No.RG130/0800-3612 010201
Brandebm-papst
SGD396.23
Each
units
230 V ac Hot Gas AC 115m³/h RG130 176mm 178mm 98mm 176 x 178 x 98mm 8000rpm 55dB Ball - Electronic
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. 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 - -