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. 825-7866
Mfr. Part No.RER133-41/18/2TDP
Brandebm-papst
TWD7,494.00
Each
units
48 V dc Centrifugal DC 565m³/h RER133 - 133mm 91mm 133 (Dia.) x 91 Dmm 6000rpm 82dB Ball - -
RS Stock No. 191-9308
Mfr. Part No.9BFB24P2H003
TWD2,497.00
Each
units
24 V dc Blower DC 56.5cfm San Ace B120 120mm 120mm 32mm 120 x 120 x 32mm 3750rpm 62dB(A) - 105 x 105mm -
RS Stock No. 892-1766
Mfr. Part No.DR505K72M/037551
BrandAmetek
TWD145,998.00
Each
units
230 V ac, 460 V ac Regenerative AC 250.35m³/h DR505 366.5mm 345.2mm 397mm 345.2 x 366.5 x 397mm - - Ball - -
RS Stock No. 892-1801
Mfr. Part No.DR633AY86M/081693
BrandAmetek
TWD340,539.00
Each
units
575 V ac Regenerative AC 236.99m³/h DR633 481.1mm 423.7mm 458.3mm 423.7 x 481.1 x 458.3mm - - Ball - -
RS Stock No. 892-3598
Mfr. Part No.150436-50
BrandAmetek
TWD33,095.00
Each
units
24 V dc Blower DC 107.04m³/h Windjammer - Bypass 5.7" 149.4mm 149.4mm 137.5mm 149.4 x 149.4 x 137.5mm - - - - Brushless
RS Stock No. 813-525
Mfr. Part No.RG90-18/56
Brandebm-papst
TWD2,596.00
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. 892-1829
Mfr. Part No.DR656CK86X/080583
BrandAmetek
TWD200,810.00
Each
units
575 V ac Regenerative AC 350.49m³/h DR656 382.5mm 390.5mm - - - - Ball - -
RS Stock No. 813-597
Mfr. Part No.U97EM-012KK-3
BrandMicronel
TWD8,020.00
Each
units
12 V dc Blower DC 9.5L/s U97EM 136mm 98mm 105mm 98 x 136 x 105mm 11300rpm 62dB(A) Ball - -
RS Stock No. 126-177
Mfr. Part No.PMB1275PNB4-AY(2).GN
BrandSunon
TWD739.00
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. 825-7904
Mfr. Part No.RG160-28/18N
Brandebm-papst
TWD4,647.00
Each
units
48 V dc Centrifugal DC 209m³/h RG160 220mm 220mm 56mm 220 x 220 x 56mm 2850rpm 66dB Ball 203 x 203mm -
RS Stock No. 892-1722
Mfr. Part No.DR404AL86M/037408
BrandAmetek
TWD121,648.00
Each
units
575 V ac Regenerative AC 175.24m³/h DR404 309.4mm 292.1mm 339.9mm 292.1 x 309.4 x 339.9mm - - Ball - -
RS Stock No. 892-3443
Mfr. Part No.119349-51
BrandAmetek
TWD15,510.00
Each
units
12 V dc Blower DC 33.57m³/h Microjammer 3.0" 74.7mm 86.8mm 70.4mm 86.8 x 74.7 x 70.4mm - - - - Brushless
RS Stock No. 892-3462
Mfr. Part No.119375-03
BrandAmetek
TWD16,964.00
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. 826-1124
Mfr. Part No.D2E133-DM47-A3
Brandebm-papst
TWD13,781.00
Each
units
230 V Centrifugal AC - D2E 133 - - - - - - - - -
RS Stock No. 860-0251
Mfr. Part No.G1G140-AV17-02
Brandebm-papst
TWD10,396.40
Each (In a Pack of 5)
units
24 V dc Centrifugal DC 400m³/h G1G140 262.6mm 227.8mm 130mm 262.6 x 227.8 x 130mm 1750rpm 63dB(A) Ball 105 x 115mm Electronic
RS Stock No. 892-1845
Mfr. Part No.DR757CK86X/081173
BrandAmetek
TWD239,780.00
Each
units
575 V ac Regenerative AC 550.77m³/h DR757 443mm 426mm 471mm 426 x 443 x 471mm - - Ball - -
RS Stock No. 825-7639
Mfr. Part No.R2E175-AO77-14
Brandebm-papst
TWD6,353.00
Each
units
- Centrifugal AC 570m³/h R2E175 - 175mm - - 3100rpm 68dB(A) Ball - -
RS Stock No. 221-077
Mfr. Part No.RG160-28/12N
Brandebm-papst
TWD8,055.00
Each
units
12 V dc Centrifugal DC 209m³/h RG160 220mm 220mm 56mm 220 x 220 x 56mm 2850rpm 66dB Ball 203 x 203mm Electronic
RS Stock No. 826-1250
Mfr. Part No.G1G146-BA07-52
Brandebm-papst
TWD18,264.00
Each
units
24 V dc Centrifugal DC - G1G 146 - - - - - - - - -
RS Stock No. 892-3617
Mfr. Part No.150540-50
BrandAmetek
TWD90,589.00
Each
units
240 V ac Blower Ac - Nautilair 12.3" 314.73mm 332.83mm 222.25mm 332.83 x 314.73 x 222.25mm - - - - Brushless