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. 813-547
Mfr. Part No.RG125-19/56
Brandebm-papst
SGD137.61
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. 696-3566
Mfr. Part No.D4E146-LV19-14
Brandebm-papst
SGD307.01
Each
units
230 V ac Centrifugal AC 565m³/h D4E146 216mm 203mm 203mm 216 x 203 x 272mm 780rpm 46dB Ball 100 x 247mm -
RS Stock No. 250-858
Mfr. Part No.RLF35-8/14N
Brandebm-papst
SGD56.78
Each
units
24 V dc Centrifugal DC 9.6m³/h RLF 35 51mm 51mm 15mm 51 x 51 x 15mm 6700rpm 55dB Ball 43 x 38mm Electronic
RS Stock No. 217-4254
Mfr. Part No.R2S175-AB56-01
Brandebm-papst
SGD285.03
Each
units
230 V ac Centrifugal AC 445m³/h R2S175 - 175mm 69mm - 2350rpm 61dB Ball - -
RS Stock No. 498-8617
Mfr. Part No.G2E140-NS38-01
Brandebm-papst
SGD354.44
Each
units
230 V ac Centrifugal AC 370m³/h G2E140 248mm 237mm 100mm 248 x 237 x 100mm 1700rpm 59dB Ball - -
RS Stock No. 223-089
Mfr. Part No.G2E108-AA01-50
Brandebm-papst
SGD266.54
Each
units
240 V ac Centrifugal AC 155m³/h G2E108 168mm 159mm 115mm 168 x 159 x 115mm 1650rpm 58dB Ball 66 x 97mm -
RS Stock No. 332-4113
Mfr. Part No.G2E140-AI28-A5
Brandebm-papst
SGD659.48
Each
units
230 V ac Centrifugal AC 485m³/h G2E140 247mm 226mm 130mm 247 x 226 x 130mm 2400rpm 72dB Ball - -
RS Stock No. 332-5734
Mfr. Part No.QLZ06/3000A105-3038LH-63
Brandebm-papst
SGD140.01
Each
units
230 V ac Tangential AC 230m³/h QLZ 96mm 395mm 83mm 96 x 395 x 83mm 1600rpm 48dB Sleeve - -
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. 841-4909
Mfr. Part No.G3G146-FK07-02
Brandebm-papst
SGD790.68
Each
units
200 → 240 V ac Centrifugal AC 650m³/h G3G 248.5mm 227mm 130mm 248.5 x 227 x 130mm 2320rpm 70dB Ball 105 x 115mm Electronic
RS Stock No. 826-1284
Mfr. Part No.G2E140-AI28-01
Brandebm-papst
SGD637.01
Each
units
230 V Centrifugal AC 490m³/h G2E140 247.5mm 130mm 226.8mm 247.5 x 130 x 226.8mm 2350 rpm, 2400rpm - Ball 105 x 115mm Electronic
RS Stock No. 802-9444
Mfr. Part No.R3G220-RD53-03
Brandebm-papst
SGD660.25
Each
units
230 V ac Centrifugal AC 1290m³/h RadiCal - 220 (Dia.)mm 92mm 220 (Dia.) x 90mm 3230rpm - Ball - Electronic
RS Stock No. 218-3191
Mfr. Part No.G2E140-AL40-01
Brandebm-papst
SGD548.32
Each
units
230 V ac Centrifugal AC 385m³/h G2E140 247mm 226mm 130mm 247 x 226 x 130mm 1650rpm 63dB Ball 105 x 115mm -
RS Stock No. 434-9826
Mfr. Part No.QLK45/1800A118-2518L-73RH
Brandebm-papst
SGD131.44
Each
units
230 V ac Tangential AC 125m³/h QLK 79mm 265mm 71mm 79 x 265 x 71mm 2200rpm - - - -
RS Stock No. 813-575
Mfr. Part No.U64HM-006GK-2
BrandMicronel
SGD209.09
Each
units
6 V dc Blower DC 4.9L/s U64HM 64mm 64mm 56.5mm 64 x 64 x 56.5mm 11300rpm 55dB(A) Sleeve - -
RS Stock No. 787-8960
Mfr. Part No.FW2451-A1051C2AL
BrandARX
SGD22.17
Each
units
24 V dc Blower DC 6.97m³/h CeraDyna 51mm 51mm 15mm 51 x 51 x 15mm 5500rpm 37dB(A) Sleeve - -
RS Stock No. 217-4210
Mfr. Part No.R2E225-AT51-05
Brandebm-papst
SGD382.09
Each
units
230 V ac Centrifugal AC 825m³/h R2E225 - 225mm 69mm - 2650rpm 70dB Ball - -
RS Stock No. 126-414
Mfr. Part No.GB1205PKV1-8AY.GN
BrandSunon
SGD21.94
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. 841-4898
Mfr. Part No.D3G146-HQ13-34
Brandebm-papst
SGD462.22
Each
units
230 V Centrifugal AC 1080m³/h D3G146 216mm 220mm 199mm 216 x 220 x 199mm 2400rpm - Ball 138 x 110mm Electronic
RS Stock No. 175-7072
Mfr. Part No.QG030-303/14
Brandebm-papst
SGD216.63
Each
units
24 V dc Tangential DC 139.4m³/h QG 030 47.5mm 363mm 50mm 47.5 x 363 x 50mm 3900rpm 51dB Ball - Electronic