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. 218-3208
Mfr. Part No.G2E120-AR77-01
Brandebm-papst
TWD7,918.00
Each
units
230 V ac Centrifugal AC 260m³/h G2E120 184mm 178mm 115mm 184 x 178 x 115mm 2350rpm 61dB Ball 68 x 100mm -
RS Stock No. 860-0282
Mfr. Part No.R2E150-AN89-11
Brandebm-papst
TWD7,080.00
Each (In a Pack of 10)
units
115 V ac Centrifugal AC - R2E150 - - - - - - Ball - -
RS Stock No. 826-1297
Mfr. Part No.G2E146-BF05-29
Brandebm-papst
TWD14,353.00
Each
units
115 V Centrifugal AC - G2E 146 - - - - - - - - -
RS Stock No. 892-1867
Mfr. Part No.DR858AY72W/038738
BrandAmetek
TWD314,216.00
Each
units
230 V ac, 460 V ac Regenerative AC 634.22m³/h DR858 554mm 472.4mm 585.7mm 472.4 x 554 x 585.7mm - - Ball - -
New
RS Stock No. 205-6980
Mfr. Part No.9W1BM24P2H001
TWD5,077.00
Each
units
20.4 → 27.6 V - Dc 38.5cfm 9W1B - - - 97 x 33mm - - - - -
RS Stock No. 892-1680
Mfr. Part No.DR14DW72MW (081476)
BrandAmetek
TWD771,556.00
Each
units
230 V ac Regenerative AC 1752.45m³/h DR14 701mm 446.3mm 801.4mm 446.3 x 701 x 801.4mm - - - - -
RS Stock No. 892-3614
Mfr. Part No.150531-50
BrandAmetek
TWD85,154.00
Each
units
120 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. 892-1857
Mfr. Part No.DR757D86X/081171
BrandAmetek
TWD258,332.00
Each
units
575 V ac Regenerative AC 550.77m³/h DR757 443mm 426mm 471mm 426 x 443 x 471mm - - Ball - -
New
RS Stock No. 191-9265
Mfr. Part No.109BC12GC7-1
TWD637.00
Each
units
12 V Blower Dc 4.4cfm San Ace B52 9BC - 52 Dia.mm 15mm 52x15mm - 43dB(A) Ball 38 x 43mm -
RS Stock No. 243-6417
Mfr. Part No.QG030-198/14
Brandebm-papst
TWD3,706.00
Each
units
24 V dc Tangential DC 100m³/h QG030 47.5mm 258mm 50mm 47.5 x 258 x 50mm 4250rpm 51dB Ball - Electronic
RS Stock No. 892-1797
Mfr. Part No.DR555CK86/081102
BrandAmetek
TWD182,025.00
Each
units
575 V ac Regenerative AC 317.11m³/h DR555 383mm 379mm - - - - Ball - -
RS Stock No. 825-7709
Mfr. Part No.R2E225-BD40-28
Brandebm-papst
TWD8,748.00
Each
units
- Centrifugal AC 1340m³/h R2E225 - 225mm - - 3000rpm 75dB(A) Ball - -
RS Stock No. 892-3421
Mfr. Part No.119153-51
BrandAmetek
TWD46,584.00
Each
units
240 V ac Blower Ac 237.68m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless
RS Stock No. 830-3029
Mfr. Part No.R2E225-RA92-09
Brandebm-papst
TWD6,343.00
Each
units
230 V ac Centrifugal AC 1195m³/h R2E225 - 225 (Dia.)mm 99mm 225 (Dia.) x 99mm 2500rpm - Ball - -
RS Stock No. 825-7692
Mfr. Part No.R2E220-AB06-40
Brandebm-papst
TWD8,373.00
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. 251-031
Mfr. Part No.RER101-36/14NHH
Brandebm-papst
TWD3,919.00
Each
units
24 V dc Centrifugal DC 190m³/h RER101 - 101mm 51.7mm 101 x 51.7mm 5900rpm 74dB Ball - Electronic
RS Stock No. 892-1740
Mfr. Part No.DR454R86M/080482
BrandAmetek
TWD143,406.00
Each
units
575 V ac Regenerative AC 200.28m³/h DR454 343mm 318mm - - - - Ball - -
RS Stock No. 860-0273
Mfr. Part No.R3G310-AN43-71
Brandebm-papst
TWD33,946.00
Each
units
48 V dc Centrifugal DC 2230m³/h R3G310 - - 119.5mm 318 (Dia.) x 119.5mm 2000rpm 71dB(A) Ball - Electronic
RS Stock No. 892-1832
Mfr. Part No.DR656D86X/080604
BrandAmetek
TWD235,295.00
Each
units
575 V ac Regenerative AC 130.18m³/h DR656 382.5mm 390.5mm - - - - Ball - -
RS Stock No. 825-7790
Mfr. Part No.R4D450-AL01-05
Brandebm-papst
TWD42,179.00
Each
units
- Centrifugal AC - R4D450 - 450mm - - 1350 rpm, 1380 rpm - Ball - -