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. 250-965
Mfr. Part No.RL65-21/12H
Brandebm-papst
SGD92.44
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. 802-9453
Mfr. Part No.R3G225-RE07-03
Brandebm-papst
SGD726.48
Each
units
230 V ac Centrifugal AC 1300m³/h RadiCal - 220 (Dia.)mm 99mm 225 (Dia.) 99mm 2860rpm - Ball - Electronic
RS Stock No. 205-6980
Mfr. Part No.9W1BM24P2H001
SGD269.88
Each
units
20.4 → 27.6 V Centrifugal Dc 38.5cfm 9W1B - - - 97 x 33mm - - - - -
RS Stock No. 813-597
Mfr. Part No.U97EM-012KK-3
BrandMicronel
SGD373.75
Each
units
12 V dc Blower DC 9.5L/s U97EM 136mm 98mm 105mm 98 x 136 x 105mm 11300rpm 62dB(A) Ball - -
RS Stock No. 892-3380
Mfr. Part No.119101-01
BrandAmetek
SGD2,129.97
Each
units
120 V ac Blower Ac 238.76m³/h Windjammer - Bypass 5.7" 150mm 150mm 153.7mm 150 x 150 x 153.7mm - - - - Brushless
RS Stock No. 191-9313
Mfr. Part No.9BMB24P2K01
SGD40.61
Each
units
24 V dc Blower DC 56.8cfm San Ace B97 97mm 97mm 33mm 97 x 97 x 33mm 6850rpm 57dB(A) - 71 x 71mm -
RS Stock No. 892-3465
Mfr. Part No.119378-01
BrandAmetek
SGD1,575.58
Each
units
24 V dc Blower DC 74.76m³/h Minijammer 5.0" 127mm 127mm 71.6mm 127 x 127 x 71.6mm - - - - Brushless
RS Stock No. 180-3032
Mfr. Part No.TF037E-2000-F
SGD317.28
Each
units
24 V dc Blower DC 1.6L/s TF037E 52mm 80.2mm 60mm 80.2 x 52 x 60mm 35500rpm 65dB(A) Ball - Brushless
RS Stock No. 892-3475
Mfr. Part No.119379-52
BrandAmetek
SGD1,255.82
Each
units
24 V dc Blower DC 64.24m³/h Minijammer 5.0" 127mm 127mm 71.6mm 127 x 127 x 71.6mm - - - - Brushless
RS Stock No. 180-3034
Mfr. Part No.TF029B-1000-F
SGD509.98
Each
units
12 → 27 V dc Blower DC 1.6L/s TF029B 41.5mm 49.44mm 33.6mm 49.44 x 41.5 x 33.6mm 36000rpm 65dB(A) Ball - Brushless
RS Stock No. 191-9265
Mfr. Part No.109BC12GC7-1
SGD28.29
Each
units
12 V Blower Dc 4.4cfm San Ace B52 9BC - 52 Dia.mm 15mm 52x15mm - 43dB(A) Ball 38 x 43mm -
RS Stock No. 202-5414
Mfr. Part No.MF50151V2-B00U-A99
BrandSunon
SGD35.00
Each
units
12 V Centrifugal Dc 5.1cfm MF - - - 50 x 50 x 15mm - - - - -
RS Stock No. 892-3493
Mfr. Part No.119384-52
BrandAmetek
SGD1,090.36
Each
units
24 V dc Blower DC 57.77m³/h Minijammer 5.0" 127mm 127mm 71.6mm 127 x 127 x 71.6mm - - - - Brushless
RS Stock No. 773-4422
Mfr. Part No.D2E146-HR93-A1
Brandebm-papst
SGD372.73
Each
units
230 V ac Centrifugal AC 430m³/h D2E 146 - - - 216 x 220 x 195mm 1630rpm 65dB(A) Ball 138 x 110mm -
RS Stock No. 124-3362
Mfr. Part No.CREB225ST-92-00 17000468A
SGD386.41
Each
units
230 V ac Centrifugal AC 748cfm CREB225 225mm 225mm 136.5mm 225 x 225 x 136.5mm 3010rpm 71dB(A) Ball 125mm -
RS Stock No. 144-4137
BrandRS PRO
SGD27.87
Each
units
12 V dc Blower DC 7.45cfm - - - 15.2mm - 5000rpm 44dB(A) Ball - Brushless
RS Stock No. 825-7771
Mfr. Part No.R2S175-AB56-30
Brandebm-papst
SGD210.753
Each (In a Pack of 6)
units
230 V ac Centrifugal AC 440m³/h R2S175 - 175mm 69mm 175 (Dia.) x 69 Dmm 2350rpm 61dB(A) Ball - -
RS Stock No. 892-3428
Mfr. Part No.119153-50
BrandAmetek
SGD2,825.72
Each
units
240 V ac Blower Ac 237.68m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless
RS Stock No. 776-1308
Mfr. Part No.RG160-28/14NU
Brandebm-papst
SGD255.75
Each
units
24 V dc Centrifugal DC 209m³/h RG 160 N 220mm 220mm 56mm 220 x 220 x 56mm 2850rpm 66dB(A) Ball 203 x 203mm Electronic
RS Stock No. 251-132
Mfr. Part No.REF100-11/14
Brandebm-papst
SGD150.24
Each
units
24 V dc Centrifugal DC 86m³/h REF 100 - 104mm 24.9mm - 5400rpm 63dB Ball - Electronic