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. 826-1102
Mfr. Part No.D1G133-AB29-14
Brandebm-papst
HK$6,060.11
Each
units
24 V dc Centrifugal DC - D1G 133 - - - - 1780rpm - - - -
RS Stock No. 826-1256
Mfr. Part No.G1G120-AB67-02
Brandebm-papst
HK$2,757.15
Each
units
24 V dc Centrifugal DC - G1G 120 - - - - - - - - -
RS Stock No. 892-1839
Mfr. Part No.DR656K72X/080602
BrandAmetek
HK$42,047.26
Each
units
230 V ac, 460 V ac Regenerative AC 130.18m³/h DR656 382.5mm 390.5mm 406.4mm 390.5 x 382.5 x 406.4mm - - Ball - -
RS Stock No. 498-8601
Mfr. Part No.G2E085-AA01-01
Brandebm-papst
HK$1,460.01
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. 892-1851
Mfr. Part No.DR757D89X/081169
BrandAmetek
HK$62,393.53
Each
units
230 V ac, 460 V ac Regenerative AC 550.77m³/h DR757 443mm 426mm 471mm 426 x 443 x 471mm - - Ball - -
RS Stock No. 892-1712
Mfr. Part No.DR353BR86M/080556
BrandAmetek
HK$28,441.67
Each
units
575 V ac Regenerative AC 166.9m³/h DR353 311mm 292mm - - - - - - -
RS Stock No. 825-7633
Mfr. Part No.R2E175-AO79-12
Brandebm-papst
HK$1,266.61
Each
units
115 V ac Centrifugal AC 570m³/h R2E175 - 175mm - - 3100rpm 68dB(A) Ball - -
RS Stock No. 191-9433
Mfr. Part No.9TN24P1H01
HK$720.49
Each
units
24 V dc Centrifugal DC 135cfm San Ace C150 150mm 150mm 35mm 150 x 150 x 35mm 3800rpm 59dB(A) - 64mm -
RS Stock No. 180-3021
Mfr. Part No.TF037C-2000-F
HK$16,319.61
1 Box of 12
Box(es)
24 V dc Blower DC 1.6L/s TF037C 50.5mm 40.4mm 37.3mm 40.4 x 50.5 x 37.3mm 40000rpm 67dB(A) Ball - Brushless
RS Stock No. 251-031
Mfr. Part No.RER101-36/14NHH
Brandebm-papst
HK$1,001.96
Each
units
24 V dc Centrifugal DC 190m³/h RER101 - 101mm 51.7mm 101 x 51.7mm 5900rpm 74dB Ball - Electronic
RS Stock No. 892-3431
Mfr. Part No.119155-52
BrandAmetek
HK$12,960.83
Each
units
240 V ac Blower Ac 455.33m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless
RS Stock No. 892-3475
Mfr. Part No.119379-52
BrandAmetek
HK$5,678.59
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. 825-7670
Mfr. Part No.R2E220-AA40-80
Brandebm-papst
HK$1,410.19
Each
units
230 V ac Centrifugal AC - R2E220 - 221.4mm 71mm 221.4 (Dia.) x 71 Dmm 2700rpm >70dB(A) Ball - -
RS Stock No. 191-9314
Mfr. Part No.9BMB24S201
HK$247.56
Each
units
24 V dc Blower DC 43.1cfm San Ace B97 97mm 97mm 33mm 97 x 97 x 33mm 5250rpm 59dB(A) - 71 x 71mm -
RS Stock No. 126-391
Mfr. Part No.PMB1275PNB1-AY(2).GN
BrandSunon
HK$181.58
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. 892-1826
Mfr. Part No.DR656CK72X/080582
BrandAmetek
HK$38,236.83
Each
units
230 V ac, 460 V ac Regenerative AC 350.49m³/h DR656 382.5mm 390.5mm 444.5mm 390.5 x 382.5 x 444.5mm - - Ball - -
RS Stock No. 892-1804
Mfr. Part No.DR555K86/081101
BrandAmetek
HK$48,698.71
Each
units
575 V ac Regenerative AC 317.11m³/h DR555 383mm 379mm - - - - Ball - -
RS Stock No. 825-7768
Mfr. Part No.R2S133-AE77-22
Brandebm-papst
HK$937.33
Each
units
115 V ac Centrifugal AC 320m³/h R2S133 - 133mm - - 3200rpm 58dB(A) Ball - -
RS Stock No. 825-7894
Mfr. Part No.RG125-19/18N
Brandebm-papst
HK$675.53
Each
units
48 V dc Centrifugal DC 87.5m³/h RG125 180mm 180mm 40mm 180 x 180 x 40mm 2550rpm 58dB Ball 165 x 165mm -
RS Stock No. 825-7756
Mfr. Part No.R2E280-AE52-05
Brandebm-papst
HK$3,138.86
Each
units
230 V ac Centrifugal AC 2110m³/h R2E280 - 280mm 125mm 280 (Dia.) x 125 Dmm 2700rpm 76dB(A) Ball - -
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