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. 787-4025
BrandRS PRO
$42.15
Each
units
12 V dc Blower DC 30cfm - 120mm 120mm 31mm 120 x 120 x 31mm 2700rpm 49dB(A) Ball - Brushless
RS Stock No. 144-4136
BrandRS PRO
$20.55
Each
units
12 V dc Blower DC 4.2cfm - - 51.11mm 15mm - 5500rpm 38dB(A) Ball - Brushless
RS Stock No. 787-4022
BrandRS PRO
$38.29
Each
units
24 V dc Blower DC 33cfm - 95.87mm - 33mm - 4000rpm 56dB(A) Ball - Brushless
RS Stock No. 144-4135
BrandRS PRO
$20.14
Each
units
12 V dc Blower DC 2.4cfm - - 51.11mm 15mm - 3500rpm 32dB(A) Ball - Brushless
RS Stock No. 787-4029
BrandRS PRO
$42.15
Each
units
24 V dc Blower DC 30cfm - 120mm 120mm 31mm 120 x 120 x 31mm 3000rpm 49dB(A) Ball - Brushless
RS Stock No. 787-4013
BrandRS PRO
$42.43
Each
units
24 V dc Blower DC 10cfm - 75mm 75mm 30mm 75 x 75 x 30mm 3000rpm 38dB(A) Ball - Brushless
RS Stock No. 144-4137
BrandRS PRO
$19.82
Each
units
12 V dc Blower DC 7.45cfm - - - 15.2mm - 5000rpm 44dB(A) Ball - Brushless
RS Stock No. 332-5728
Mfr. Part No.QLZ06/2400A74-3030LH-170
Brandebm-papst
$84.38
Each
units
230 V ac Tangential AC 170m³/h QLZ 96mm 324mm 83mm 96 x 324 x 83mm 2100rpm 47dB Sleeve - -
RS Stock No. 126-414
Mfr. Part No.GB1205PKV1-8AY.GN
BrandSunon
$13.01
Each
units
12 V dc Blower DC 5.7cfm GB 50mm 50mm 20mm 50 x 50 x 20mm 5200rpm 35dB(A) Vapo 43 x 40mm Brushless
RS Stock No. 830-3023
Mfr. Part No.R3G190-RC05-03
Brandebm-papst
$374.66
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. 332-4078
Mfr. Part No.D2E097-BI56-50
Brandebm-papst
$420.64
Each
units
230 V ac Centrifugal AC 435m³/h D2E 097 165mm 146mm 162mm 165 x 162 x 146mm 1950rpm 58dB Ball 88 x 168mm -
RS Stock No. 332-5734
Mfr. Part No.QLZ06/3000A105-3038LH-63
Brandebm-papst
$161.76
Each
units
230 V ac Tangential AC 230m³/h QLZ 96mm 395mm 83mm 96 x 395 x 83mm 1600rpm 48dB Sleeve - -
RS Stock No. 813-525
Mfr. Part No.RG90-18/56
Brandebm-papst
$112.04
Each
units
230 V ac Centrifugal AC 54m³/h RG90 135mm 135mm 38mm 135 x 135 x 38mm 2200rpm 58dB Ball 122 x 122mm -
RS Stock No. 332-4107
Mfr. Part No.G2E120-AR77-A6
Brandebm-papst
$390.15
Each
units
230 V ac Centrifugal AC 255m³/h G2E120 184mm 178mm 115mm 184 x 178 x 115mm 2350rpm 61dB Ball 68 x 100mm -
RS Stock No. 332-5699
Mfr. Part No.QLZ06/1800-A304-2524LH-72
Brandebm-papst
$114.56
Each
units
230 V ac Tangential AC 150m³/h QLZ 96mm 257mm 83mm 96 x 257 x 83mm 1700rpm 48dB Sleeve - -
RS Stock No. 332-5683
Mfr. Part No.QLZ06/1800 A297-2518L-93UK
Brandebm-papst
$126.77
Each
units
230 V ac Tangential AC 130m³/h QLZ 96mm 251mm 83mm 96 x 251 x 83mm 1400rpm 40dB Sleeve 154 x 16.5mm -
RS Stock No. 434-9832
Mfr. Part No.QLK45/2400A32-2524L-58
Brandebm-papst
$123.54
Each
units
230 V ac Tangential AC 190m³/h QLK 79mm 331mm 71mm 79 x 331 x 71mm 2300rpm - - 212 x 16.5mm -
RS Stock No. 250-858
Mfr. Part No.RLF35-8/14N
Brandebm-papst
$49.00
Each
units
24 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. 826-1294
Mfr. Part No.G2E180-EH03-01
Brandebm-papst
$786.15
Each
units
230 V Centrifugal AC 400m³/h G2E180 283mm 125mm 261mm 283 x 125 x 261mm 1950 rpm, 2150 rpm - Ball 120 x 110mm Electronic
RS Stock No. 332-5706
Mfr. Part No.QLZ06/2400A47 -3020LH-25ZX
Brandebm-papst
$125.61
Each
units
230 V ac Tangential AC 120m³/h QLZ 96mm 317mm 83mm 96 x 317 x 83mm 1100rpm 33dB Sleeve - -
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