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. 892-3576
Mfr. Part No.150403-50
BrandAmetek
HK$8,624.92
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. 221-061
Mfr. Part No.RG90-18/14N
Brandebm-papst
HK$754.68
Each
units
24 V dc Centrifugal DC 55m³/h RG 90 N 135mm 135mm 38mm 135 x 135 x 38mm 2200rpm 55dB Ball 122 x 122mm Electronic
RS Stock No. 826-1256
Mfr. Part No.G1G120-AB67-02
Brandebm-papst
HK$3,138.26
Each
units
24 V dc Centrifugal DC - G1G 120 - - - - - - - - -
RS Stock No. 830-3032
Mfr. Part No.R3G220-RC05-03
Brandebm-papst
HK$2,231.33
Each
units
230 V ac Centrifugal AC 1015m³/h RadiCal - 220 (Dia.)mm 71mm 220 (Dia.) x 71mm 2580rpm - Ball - Electronic
RS Stock No. 825-7904
Mfr. Part No.RG160-28/18N
Brandebm-papst
HK$1,278.30
Each
units
48 V dc Centrifugal DC 209m³/h RG 160 N 220mm 220mm 56mm 220 x 220 x 56mm 2850rpm 66dB Ball 203 x 203mm -
RS Stock No. 217-4210
Mfr. Part No.R2E225-AT51-05
Brandebm-papst
HK$2,278.79
Each
units
230 V ac Centrifugal AC 825m³/h R2E225 - 225mm 69mm - 2650rpm 70dB Ball - -
RS Stock No. 202-5420
Mfr. Part No.MF60151V1-1B000U-A99
BrandSunon
HK$213.50
Each
units
12 V Centrifugal Dc 5.7cfm MF - - - 60 x 60 x 15mm - - - - -
RS Stock No. 802-9444
Mfr. Part No.R3G220-RD53-03
Brandebm-papst
HK$2,382.25
Each
units
230 V ac Centrifugal AC 1290m³/h RadiCal - 220 (Dia.)mm 92mm 220 (Dia.) x 90mm 3230rpm - Ball - Electronic
RS Stock No. 124-3363
Mfr. Part No.CREB250ST-92-00 17000469A
HK$2,320.96
Each
units
230 V ac Centrifugal AC 765cfm CREB250 250mm 250mm 125mm 250 x 250 x 125mm 2760rpm 71dB(A) Ball 125mm -
RS Stock No. 251-031
Mfr. Part No.RER101-36/14NHH
Brandebm-papst
HK$1,099.53
Each
units
24 V dc Centrifugal DC 190m³/h RER 101 N - 101mm 51.7mm 101 x 51.7mm 5900rpm 74dB Ball - Electronic
RS Stock No. 221-083
Mfr. Part No.RG160-28/14N
Brandebm-papst
HK$1,004.55
Each
units
24 V dc Centrifugal DC 209m³/h RG 160 N 220mm 220mm 56mm 220 x 220 x 56mm 2850rpm 66dB Ball 203 x 203mm Electronic
RS Stock No. 191-9269
Mfr. Part No.109BJ24HC2
HK$454.14
Each
units
24 V Blower Dc 27.5cfm San Ace B127 9BJ - 127 Dia.mm 32mm 127 x 32mm - 46dB(A) Ball 104.8 x 104.8mm -
RS Stock No. 126-177
Mfr. Part No.PMB1275PNB4-AY(2).GN
BrandSunon
HK$215.76
Each
units
12 V dc Blower DC 7.5cfm PMB 75.7mm 75.7mm 30mm 75.7 x 75.7 x 30mm 1900rpm 28dB(A) Ball 61.8 x 48.2mm Brushless
RS Stock No. 841-4895
Mfr. Part No.D3G146-AH50-11
Brandebm-papst
HK$5,293.98
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. 813-575
Mfr. Part No.U64HM-006GK-2
BrandMicronel
HK$1,226.76
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. 180-3034
Mfr. Part No.TF029B-1000-F
HK$3,023.02
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. 830-3023
Mfr. Part No.R3G190-RC05-03
Brandebm-papst
HK$2,069.65
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. 892-3465
Mfr. Part No.119378-01
BrandAmetek
HK$9,243.02
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. 712-5244
Mfr. Part No.WT24B3 19031102A
HK$442.92
Each
units
24 V dc Blower DC 15cfm Whiffet 80mm 80mm 32mm 80 x 80 x 32mm 4050rpm 52.2dB(A) Ball 71.37 x 71.37mm Brushless
RS Stock No. 841-4918
Mfr. Part No.G3G160-AC50-01
Brandebm-papst
HK$5,255.68
Each
units
200 → 277 V ac Centrifugal AC - G3G 262mm 227mm 130mm 262 x 227 x 130mm 2150rpm - Ball 105 x 115mm Electronic