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. 892-3481
Mfr. Part No.119383-00
BrandAmetek
£288.21
Each
Units
24 V dc Blower DC 57.77m³/h Minijammer 5.0" 127mm 127mm 71.6mm 127 x 127 x 71.6mm - - - - Brushless
RS Stock No. 892-3620
Mfr. Part No.150908-50
BrandAmetek
£294.88
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. 892-3541
Mfr. Part No.150166
BrandAmetek
£466.65
Each
Units
12 V dc Blower DC 64.22m³/h Minijammer 5.0" 127mm 127mm 71.6mm 127 x 127 x 71.6mm - - - - Brushless
RS Stock No. 892-3465
Mfr. Part No.119378-01
BrandAmetek
£737.14
Each
Units
24 V dc Blower DC 74.76m³/h Minijammer 5.0" 127mm 127mm 71.6mm 127 x 127 x 71.6mm - - - - Brushless
RS Stock No. 892-1860
Mfr. Part No.DR808AY72MX/081222
BrandAmetek
£6,104.86
Each
Units
230 V ac, 460 V ac Regenerative AC 625.87m³/h DR808 564.6mm 442.7mm 536.4mm 442.7 x 564.6 x 536.4mm - - Ball - -
RS Stock No. 892-3576
Mfr. Part No.150403-50
BrandAmetek
£599.85
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. 892-1889
Mfr. Part No.DRS9BM72 (037032)
BrandAmetek
£11,643.36
Each
Units
230 V ac, 460 V ac Regenerative AC 667.6m³/h DRS9 806.5mm 254mm 554mm 254 x 806.5 x 554mm - - Ball - -
RS Stock No. 892-2078
Mfr. Part No.SE2B21 (081901)
BrandAmetek
£394.12
Each
Units
110 V ac, 115 V ac Regenerative SPA AC 5.8m³/h Minispiral 105.66mm 104.4mm 45.72mm 104.4 x 105.66 x 45.72mm 2850 rpm, 3400 rpm - Ball - -
RS Stock No. 892-1876
Mfr. Part No.DR858BB72W/038740
BrandAmetek
£6,350.07
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. 892-3459
Mfr. Part No.119350-51
BrandAmetek
£318.00
Each
Units
24 V dc Blower DC 34.98m³/h Microjammer 3.0" 74.7mm 86.8mm 70.4mm 86.8 x 74.7 x 70.4mm - - - - Brushless
RS Stock No. 892-3412
Mfr. Part No.119152-01
BrandAmetek
£1,134.48
Each
Units
240 V ac Blower ac 305.82m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless
RS Stock No. 892-1914
Mfr. Part No.EN858BD72WL/038744
BrandAmetek
£6,401.99
Each
Units
230 V ac, 460 V ac Regenerative AC 634.22m³/h EN858 660.4mm 472.4mm 622.3mm 472.4 x 660.4 x 622.3mm - - Ball - -
RS Stock No. 892-3443
Mfr. Part No.119349-51
BrandAmetek
£294.90
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. 892-3504
Mfr. Part No.119498-50
BrandAmetek
£551.18
Each
Units
24 V dc Blower DC 12.74m³/h Microjammer 3.3" 83.6mm 112.2mm 69.7mm 112.2 x 83.6 x 69.7mm - - - - Brushless
RS Stock No. 892-2096
Mfr. Part No.SL2P90/036018
BrandAmetek
£3,417.99
Each
Units
380 V ac, 460 V ac Regenerative SPA AC 100.14m³/h SPIRAL Simplex SL2 253.2mm 309.1mm 199.1mm 309.1 x 253.2 x 199.1mm - - Ball 44.5 x 76.2mm -
RS Stock No. 892-1674
Mfr. Part No.DR101Y72M/038937
BrandAmetek
£1,333.98
Each
Units
230 V ac, 460 V ac Regenerative AC 51.73m³/h DR101 211mm 199mm 292mm 199 x 211 x 292mm - - - - -
RS Stock No. 892-3471
Mfr. Part No.119379-05
BrandAmetek
£575.31
Each
Units
24 V dc Blower DC 64.24m³/h Minijammer 5.0" 127mm 127mm 71.6mm 127 x 127 x 71.6mm - - - - Brushless
RS Stock No. 892-1769
Mfr. Part No.DR505AW58M/037935
BrandAmetek
£2,335.86
Each
Units
115 V ac, 230 V ac Regenerative SPA AC 267.04m³/h DR505 365.3mm 343.7mm 381mm 343.7 x 365.3 x 381mm - - Ball - -
RS Stock No. 892-3601
Mfr. Part No.150521-00
BrandAmetek
£749.82
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. 892-3399
Mfr. Part No.119102-01
BrandAmetek
£727.47
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