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. 498-8550
Mfr. Part No.R2E 180-AS77-05
Brandebm-papst
£131.18
Each
Units
230 V ac Centrifugal AC 570m³/h R2E180 180mm 180mm 78mm 180 (Dia.) x 78mm 2300rpm 63dB Ball 58 x 58mm -
RS Stock No. 223-089
Mfr. Part No.G2E108-AA01-50
Brandebm-papst
£113.40
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. 841-4898
Mfr. Part No.D3G146-HQ13-34
Brandebm-papst
£215.98
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. 332-5734
Mfr. Part No.QLZ06/3000A105-3038LH-63
Brandebm-papst
£66.19
Each
Units
230 V ac Tangential AC 230m³/h QLZ 96mm 395mm 83mm 96 x 395 x 83mm 1600rpm 48dB Sleeve - -
RS Stock No. 841-4902
Mfr. Part No.D4E225-CC01-54
Brandebm-papst
£656.08
Each
Units
230 V Centrifugal AC 2615m³/h D4E 225 370mm 327mm 341mm 370 x 327 x 341mm 1090rpm - Ball 284 x 321mm Electronic
RS Stock No. 617-4501
Mfr. Part No.FE1Q230-060-04
Brandebm-papst
£210.10
Each
Units
230 V ac Tangential AC 340m³/h FE1Q 169mm 483mm 88mm 169 x 483 x 88mm 2390rpm 54dB Ball 76.2 x 465.1mm -
RS Stock No. 787-8964
Mfr. Part No.FW1275-A1041C2AL
BrandARX
£10.92
Each
Units
12 V dc Blower DC 16.58m³/h CeraDyna 75mm 75mm 15mm 75 x 75 x 15mm 4500rpm 51.3dB(A) Sleeve 80.8mm -
RS Stock No. 841-4895
Mfr. Part No.D3G146-AH50-11
Brandebm-papst
£300.30
Each
Units
200 → 277 V ac Centrifugal AC 645m³/h D3G146 219mm 206mm 270mm 219 x 206 x 270mm 1700rpm - Ball 126 x 254mm Electronic
RS Stock No. 126-391
Mfr. Part No.PMB1275PNB1-AY(2).GN
BrandSunon
£15.19
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. 250-943
Mfr. Part No.RLF35-8/12N
Brandebm-papst
£22.68
Each
Units
12 V dc Centrifugal DC 9.6m³/h RLF35 51mm 51mm 15mm 51 x 51 x 15mm 6700rpm 55dB Ball 43 x 38mm Electronic
RS Stock No. 830-3023
Mfr. Part No.R3G190-RC05-03
Brandebm-papst
£159.39
Each
Units
230 V ac Centrifugal AC 735m³/h RadiCal - 190 (Dia.)mm 71.4mm 190 (Dia.) x 71.4mm 3200rpm - Ball - Electronic
RS Stock No. 126-436
Mfr. Part No.PMB1212PLB2-A(2).GN
BrandSunon
£27.19
Each
Units
12 V dc Blower DC 35.9cfm PMB 120mm 120mm 32mm 120 x 120 x 32mm 2500rpm 53.8dB(A) Ball 105 x 105mm Brushless
RS Stock No. 217-4204
Mfr. Part No.R2E220-AA40-05
Brandebm-papst
£108.77
Each
Units
230 V ac Centrifugal AC 865m³/h R2E220 - 220mm 71mm - 2600rpm 73dB Ball - -
RS Stock No. 498-8601
Mfr. Part No.G2E085-AA01-01
Brandebm-papst
£151.80
Each
Units
230 V ac Centrifugal AC 85m³/h G2E085 116.5mm 117.5mm 80mm 116.5 x 117.5 x 80mm 2350rpm 53dB Ball 58 x 66mm -
RS Stock No. 251-126
Mfr. Part No.REF100-11/12
Brandebm-papst
£58.85
Each
Units
12 V dc Centrifugal DC 86m³/h REF100 - 104mm 24.9mm - 5400rpm 63dB Ball - Electronic
RS Stock No. 233-9451
Mfr. Part No.D2E133-AM47-23
Brandebm-papst
£246.95
Each
Units
230 V ac Centrifugal AC 710m³/h D2E 133 198mm 171.5mm 254mm 198 x 171.5 x 254mm 1800rpm 59dB Ball 92 x 238mm -
RS Stock No. 243-6467
Mfr. Part No.G1G108-AB17-02
Brandebm-papst
£181.50
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. 696-3566
Mfr. Part No.D4E146-LV19-14
Brandebm-papst
£194.04
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. 514-2979
Mfr. Part No.RG130/0800-3612 010201
Brandebm-papst
£164.48
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. 251-148
Mfr. Part No.RER101-36/12NHH
Brandebm-papst
£85.16
Each
Units
12 V dc Centrifugal DC 190m³/h RER101 - 101mm 51.7mm 101 x 51.7mm 5900rpm 74dB Ball - Electronic
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