Centrifugal Fans

Centrifugal fans are also known as blowers and normally constructed as a fixed drum shape composed 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.

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 all the up to 11500 rpm. Both backward and forward facing fan blades

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.

In Centrifugal fans the 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, backward 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. 243-6467
Mfr. Part No.G1G108-AB17-02
Brandebm-papst
kr 2 423,52
Each
Units
24 V dc Centrifugal DC 225m³/h G1G108 183mm 159mm 115mm 183 x 159 x 115mm 3000rpm 65dB Ball 66 x 97mm Electronic
RS Stock No. 381-1320
Mfr. Part No.U97EM-024KK-3
BrandMicronel
kr 2 163,33
Each
Units
24 V dc Blower DC 9L/s U97EM 136mm 98mm 105mm 98 x 136 x 105mm 10500rpm 60dB(A) Ball - -
RS Stock No. 825-7866
Mfr. Part No.RER133-41/18/2TDP
Brandebm-papst
kr 2 172,49
Each
Units
48 V dc Centrifugal DC 565m³/h RER133 - 133mm 91mm 133 (Dia.) x 91 Dmm 6000rpm 82dB Ball - -
RS Stock No. 825-7835
Mfr. Part No.R4E355-AF13-09
Brandebm-papst
kr 3 493,32
Each
Units
115 V ac Centrifugal AC 2740 m³/h, 3190 m³/h R4E355 - 355mm - - 1630rpm 68 dB(A), 70 dB(A) Ball - -
RS Stock No. 892-1788
Mfr. Part No.DR555CK72/081100
BrandAmetek
kr 43 901,61
Each
Units
230 V ac, 460 V ac Regenerative AC 317.11m³/h DR555 383mm 379mm 443mm 379 x 383 x 443mm - - Ball - -
RS Stock No. 892-3421
Mfr. Part No.119153-51
BrandAmetek
kr 14 420,82
Each
Units
240 V ac Blower Ac 237.68m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless
RS Stock No. 826-1127
Mfr. Part No.D2E133-DM67-78
Brandebm-papst
kr 4 520,15
Each
Units
115 V Centrifugal AC - D2E 133 - - - - - - - - -
RS Stock No. 892-3594
Mfr. Part No.150434-50
BrandAmetek
kr 8 162,60
Each
Units
24 V dc Blower DC 214.87m³/h Windjammer - Bypass 5.7" 149.4mm 149.4mm 131.1mm 149.4 x 149.4 x 131.1mm - - - - Brushless
RS Stock No. 892-1738
Mfr. Part No.DR454R58M/080481
BrandAmetek
kr 31 455,10
Each
Units
115 V ac, 230 V ac Regenerative AC 200.28m³/h DR454 343mm 318mm 367mm 318 x 343 x 367mm - - Ball - -
RS Stock No. 860-0302
Mfr. Part No.R4E355-AK05-09
Brandebm-papst
kr 5 332,64
Each
Units
- Centrifugal AC - R4E355 - - - - - - Ball - -
RS Stock No. 892-2074
Mfr. Part No.SE24V21 (037434)
BrandAmetek
kr 21 846,91
Each
Units
24 → 32 V dc Regenerative SPA DC 12.18m³/h Minispiral MDC 45.72mm 104.4mm 105.66mm 104.4 x 45.72 x 105.66mm 5500 → 6800rpm - Ball - -
RS Stock No. 892-1891
Mfr. Part No.EN404AR58ML/038173
BrandAmetek
kr 31 195,40
Each
Units
115 V ac, 230 V ac Regenerative AC 166.9m³/h EN404 416.8mm 257.3mm 311.2mm 257.3 x 416.8 x 311.2mm - - Ball - -
RS Stock No. 892-3399
Mfr. Part No.119102-01
BrandAmetek
kr 16 384,80
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. 826-1216
Mfr. Part No.EE1G-230-180-04
Brandebm-papst
kr 3 381,36
Each
Units
230 V Centrifugal AC - EE1G - - - - - - - - -
RS Stock No. 892-3425
Mfr. Part No.119154-51
BrandAmetek
kr 13 004,33
Each
Units
240 V ac Blower Ac 237.86m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless
RS Stock No. 892-1674
Mfr. Part No.DR101Y72M/038937
BrandAmetek
kr 18 348,92
Each
Units
230 V ac, 460 V ac Regenerative AC 51.73m³/h DR101 211mm 199mm 292mm 199 x 211 x 292mm - - - - -
RS Stock No. 892-3453
Mfr. Part No.119375-01
BrandAmetek
kr 4 501,32
Each
Units
24 V dc Blower DC 72.51m³/h Minijammer 5.0" 127mm 127mm 71.6mm 127 x 127 x 71.6mm - - - - Brushless
RS Stock No. 825-7686
Mfr. Part No.R2E220-AA44-98
Brandebm-papst
kr 1 549,32
Each
Units
115 V ac Centrifugal AC - R2E220 - 221.4mm 71mm 221.4 (Dia.) x 71 Dmm 2700rpm >70dB(A) Ball - -
RS Stock No. 826-1253
Mfr. Part No.G1G085-AB05-01
Brandebm-papst
kr 3 032,18
Each
Units
24 V dc Centrifugal DC - G1G 085 - - - - - - - - -
RS Stock No. 825-7620
Mfr. Part No.R1G225-AG15-11
Brandebm-papst
kr 5 031,47
Each
Units
48 V dc Centrifugal DC 1130m³/h R1G225 - 225mm - - 2700rpm 67dB(A) Ball - Electronic
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