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
New
RS Stock No. 219-7916
Mfr. Part No.9ADTU23P0G001
SGD990.32
Each
units
230 V - Ac 583cfm 190AD - - - 190 x 88mm - - - - -
RS Stock No. 191-9311
Mfr. Part No.9BMB24P2G01
SGD38.12
Each
units
24 V dc Blower DC 47.3cfm San Ace B97 97mm 97mm 33mm 97 x 97 x 33mm 5750rpm 61dB(A) - 71 x 71mm -
RS Stock No. 830-3032
Mfr. Part No.R3G220-RC05-03
Brandebm-papst
SGD409.10
Each
units
230 V ac Centrifugal AC 1015m³/h RadiCal - 220 (Dia.)mm 71mm 220 (Dia.) x 71mm 2580rpm - Ball - Electronic
RS Stock No. 185-4552
Mfr. Part No.9BMC12P2G001
SGD75.89
Each
units
12 V dc Blower Dc 65.3cfm San Ace B97 97mm 97mm 33mm 97 x 97 x 33mm 8200rpm 69dB(A) - 71 x 71mm -
RS Stock No. 191-9432
Mfr. Part No.9TM24P4H01
SGD144.58
Each
units
24 V dc Centrifugal DC 62.5cfm San Ace C175 100mm 100mm 25mm 100 x 100 x 25mm 6400rpm 60dB(A) - 56mm -
RS Stock No. 468-4652
Mfr. Part No.RL48-19/12
Brandebm-papst
SGD72.21
Each
units
12 V dc Centrifugal DC 28m³/h RL 48 75.5mm 75.2mm 27mm 75.5 x 75.2 x 27mm 4400rpm 57dB Ball 67.1 x 45.7mm Electronic
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. 191-9310
Mfr. Part No.9BMB12P2K01
SGD57.96
Each
units
12 V dc Blower DC 56.8cfm San Ace B97 97mm 97mm 33mm 97 x 97 x 33mm 6850rpm 66dB(A) - 71 x 71mm -
RS Stock No. 892-3471
Mfr. Part No.119379-05
BrandAmetek
SGD1,427.74
Each
units
24 V dc Blower DC 75.8m³/h Minijammer 5.0" 127mm 127mm 71.6mm 127 x 127 x 71.6mm - - - - Brushless
RS Stock No. 2509574686
Mfr. Part No.ODB7530-12HB
BrandOrion
SGD40.30
Each
units
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RS Stock No. 2509574579
Mfr. Part No.OAB220-11-1
BrandOrion
SGD159.43
Each
units
- - - - - - - - - - - - - -
RS Stock No. 2509574513
Mfr. Part No.OAB908AN-11-1/2
BrandOrion
SGD149.84
Each
units
- - - - - - - - - - - - - -
RS Stock No. 2508127443
Mfr. Part No.OAB190-22-1
BrandOrion
SGD152.47
Each
units
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