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. 892-3594
Mfr. Part No.150434-50
BrandAmetek
TWD25,433.00
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. 175-7072
Mfr. Part No.QG030-303/14
Brandebm-papst
TWD3,028.00
Each
units
24 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. 892-3598
Mfr. Part No.150436-50
BrandAmetek
TWD26,968.00
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. 482-089
Mfr. Part No.RL90-18/00
Brandebm-papst
TWD1,984.00
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. 892-3601
Mfr. Part No.150521-00
BrandAmetek
TWD32,135.00
Each
units
240 V ac Blower Ac 270.99m³/h Nautilair 7.6" 189.5mm 204.22mm 138.4mm 204.22 x 189.5 x 138.4mm - - - - Brushless
RS Stock No. 892-3762
Mfr. Part No.515132
BrandAmetek
TWD4,747.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 825-7692
Mfr. Part No.R2E220-AB06-40
Brandebm-papst
TWD7,872.00
Each
units
230 V ac Centrifugal AC 900 m³/h, 990 m³/h R2E220 - 220mm 71mm 220 (Dia.) x 71 Dmm 2700 rpm, 3050 rpm 74 dB(A), 75 dB(A) Ball - -
RS Stock No. 892-1895
Mfr. Part No.EN656M72XL (080059)
BrandAmetek
TWD146,320.00
Each
units
230 V ac, 460 V ac Regenerative AC 353.82m³/h EN656 492mm 391.7mm 382.5mm 391.7 x 492 x 382.5mm - - Ball - -
RS Stock No. 892-3579
Mfr. Part No.150401-50
BrandAmetek
TWD26,063.00
Each
units
24 V dc Blower DC 149.51m³/h Windjammer - Bypass 5.7" 149.4mm 149.4mm 170mm 149.4 x 149.4 x 170mm - - - - Brushless
RS Stock No. 892-3399
Mfr. Part No.119102-01
BrandAmetek
TWD37,316.00
Each
units
120 V ac Blower Ac 238.76m³/h Windjammer - Bypass 5.7" 150mm 150mm 153.7mm 150 x 150 x 153.7mm - - - - Brushless
RS Stock No. 825-7768
Mfr. Part No.R2S133-AE77-22
Brandebm-papst
TWD3,221.00
Each
units
115 V ac Centrifugal AC 320m³/h R2S133 - 133mm - - 3200rpm 58dB(A) Ball - -
RS Stock No. 126-408
Mfr. Part No.PMB2475PNB1-AY(2).GN
BrandSunon
TWD994.00
Each
units
24 V dc Blower DC 13.6cfm PMB 75.7mm 75.7mm 30mm 75.7 x 75.7 x 30mm 3400rpm 43.5dB(A) Ball 61.8 x 48.2mm Brushless
RS Stock No. 892-1677
Mfr. Part No.DR101Y86M/038938
BrandAmetek
TWD86,582.00
Each
units
575 V ac Regenerative AC 51.73m³/h DR101 211mm 199mm 292mm 199 x 211 x 292mm - - - - -
RS Stock No. 233-9439
Mfr. Part No.G4E180-GS11-01
Brandebm-papst
TWD15,631.00
Each
units
230 V ac Centrifugal AC 910m³/h G4E180 332mm 296mm 183mm 332 x 296 x 183mm 1170rpm 66dB Ball 258 x 163mm -
RS Stock No. 892-3605
Mfr. Part No.150524-00
BrandAmetek
TWD32,135.00
Each
units
240 V ac Blower Ac 270.99m³/h Nautilair 7.6" 189.5mm 204.22mm 138.4mm 204.22 x 189.5 x 138.4mm - - - - Brushless
RS Stock No. 787-4022
BrandRS PRO
TWD770.00
Each
units
24 V dc Blower DC 33cfm - 95.87mm - 33mm - 4000rpm 56dB(A) Ball - Brushless
RS Stock No. 825-7863
Mfr. Part No.RER175-42/18/2TDMLP
Brandebm-papst
TWD5,780.00
Each
units
48 V dc Centrifugal DC 600m³/h RER175 - 175mm 69mm 175 (Dia.) x 69 Dmm 3400rpm 73dB Ball - -
RS Stock No. 892-3582
Mfr. Part No.150416-50
BrandAmetek
TWD36,023.00
Each
units
48 V dc Blower DC 210.17m³/h Windjammer - Bypass 5.7" 149.4mm 149.4mm 137.5mm 149.4 x 149.4 x 137.5mm - - - - Brushless
RS Stock No. 825-7614
Mfr. Part No.R1G220-AB35-52
Brandebm-papst
TWD9,520.00
Each
units
24 V dc Centrifugal DC 1055m³/h R1G220 - 220.9mm 71mm 220.9 (Dia.) x 71 Dmm 3150rpm 76dB(A) Ball - Electronic
RS Stock No. 892-1839
Mfr. Part No.DR656K72X/080602
BrandAmetek
TWD134,669.00
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 - -