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. 243-6423
Mfr. Part No.QG030-303/12
Brandebm-papst
kr 1 327,51
Each
Units
12 V dc Tangential DC 139.4m³/h QG030 47.5mm 363mm 50mm 47.5 x 363 x 50mm 3900rpm 51dB Ball - Electronic
RS Stock No. 825-7835
Mfr. Part No.R4E355-AF13-09
Brandebm-papst
kr 3 809,45
Each
Units
115 V ac Centrifugal AC 2740 m³/h, 3190 m³/h R4E355 - 355mm - - 1630rpm 68 dB(A), 70 dB(A) Ball - -
RS Stock No. 892-1876
Mfr. Part No.DR858BB72W/038740
BrandAmetek
kr 100 286,49
Each
Units
230 V ac, 460 V ac Regenerative AC 634.22m³/h DR858 554mm 472.4mm 589mm 472.4 x 554 x 589mm - - Ball - -
RS Stock No. 892-1728
Mfr. Part No.DR404AL72M/037406
BrandAmetek
kr 30 475,47
Each
Units
230 V ac, 460 V ac Regenerative AC 175.24m³/h DR404 309.4mm 292.1mm 360.2mm 292.1 x 309.4 x 360.2mm - - Ball - -
RS Stock No. 813-575
Mfr. Part No.U64HM-006GK-2
BrandMicronel
kr 1 341,53
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. 825-7838
Mfr. Part No.R4E310-AQ29-11
Brandebm-papst
kr 3 357,20
Each
Units
115 V ac Centrifugal AC 2380m³/h R4E310 - 310mm - - 1650rpm 66dB(A) Ball - -
RS Stock No. 892-3617
Mfr. Part No.150540-50
BrandAmetek
kr 27 201,66
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
RS Stock No. 860-0302
Mfr. Part No.R4E355-AK05-09
Brandebm-papst
kr 6 396,74
Each
Units
- Centrifugal AC - R4E355 - - - - - - Ball - -
RS Stock No. 892-1879
Mfr. Part No.DR909BB72W/081738
BrandAmetek
kr 150 145,34
Each
Units
230 V ac, 460 V ac Regenerative AC 1001.4m³/h DR909 482mm 514.4mm 593.8mm 514.4 x 482 x 593.8mm - - Ball - -
New
RS Stock No. 202-5414
Mfr. Part No.MF50151V2-B00U-A99
BrandSunon
kr 201,45
Each
Units
12 V - dc 5.1cfm MF - - - 50 x 50 x 20mm - - - - -
RS Stock No. 482-089
Mfr. Part No.RL90-18/00
Brandebm-papst
kr 624,13
Each
Units
115 V ac Centrifugal AC 42m³/h RL90 120.6mm 120.6mm 37mm 120.6 x 120.6 x 37mm 2550rpm 60dB Sleeve 104.8 x 100.8mm -
RS Stock No. 892-3620
Mfr. Part No.150908-50
BrandAmetek
kr 4 892,35
Each
Units
24 V dc Blower DC 45.07m³/h Microjammer 3.0" 74.7mm 77.7mm 88.1mm 77.7 x 74.7 x 88.1mm - - - - Brushless
RS Stock No. 860-0279
Mfr. Part No.RER175-42/14/2TDMLP
Brandebm-papst
kr 1 916,12
Each
Units
24 V dc Centrifugal DC 600m³/h RER175 - - 69mm 175 (Dia.) x 69mm 3400rpm - Ball - -
RS Stock No. 892-1731
Mfr. Part No.DR404AQ58M/037778
BrandAmetek
kr 29 317,99
Each
Units
115 V ac, 230 V ac Regenerative SPA AC 175.24m³/h DR404 308.9mm 292.1mm 327.9mm 292.1 x 308.9 x 327.9mm - - Ball - -
RS Stock No. 825-7774
Mfr. Part No.R3G220-AE70-01
Brandebm-papst
kr 8 219,65
Each
Units
230 V ac Centrifugal AC - R3G220 - 220.9mm 107.5mm 220.9 (Dia.) x 107.5 Dmm 3590rpm - Ball - -
RS Stock No. 826-1105
Mfr. Part No.D2E097-BE11-77
Brandebm-papst
kr 2 277,67
Each
Units
115 V ac Centrifugal AC - D2E 097 - - - - - - - - -
RS Stock No. 892-1839
Mfr. Part No.DR656K72X/080602
BrandAmetek
kr 49 627,51
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. 825-7869
Mfr. Part No.RER160-28/12N
Brandebm-papst
kr 1 218,03
Each
Units
12 V dc Centrifugal DC 225m³/h RER160 - 165.1mm 51mm 165.1 (Dia.) x 51 Dmm 3000rpm 64dB Ball - -
RS Stock No. 825-7841
Mfr. Part No.RER100-25/12
Brandebm-papst
kr 395,23
Each
Units
12 V dc Centrifugal DC - RER100 - 100mm 32mm 100 (Dia.) x 32 Dmm 5400rpm - Ball - -
RS Stock No. 825-7863
Mfr. Part No.RER175-42/18/2TDMLP
Brandebm-papst
kr 1 726,05
Each
Units
48 V dc Centrifugal DC 600m³/h RER175 - 175mm 69mm 175 (Dia.) x 69 Dmm 3400rpm 73dB Ball - -
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