Centrifugal Fans

Centrifugal fans are also known as blowers and normally constructed as a fixed drum shape 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. You can find out more in our centrifugal fans guide.

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 to 11500 rpm.

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.

Centrifugal fans 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, backwards 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. 126-391
Mfr. Part No.PMB1275PNB1-AY(2).GN
BrandSunon
SGD35.75
Each
units
12 V dc Blower DC 13.6cfm PMB 75.7mm 75.7mm 30mm 75.7 x 75.7 x 30mm 3400rpm 43.5dB(A) Ball 67.1 x 45.7mm Brushless
RS Stock No. 175-7072
Mfr. Part No.QG030-303/14
Brandebm-papst
SGD216.63
Each
units
24 V dc Tangential DC 139.4m³/h QG 030 47.5mm 363mm 50mm 47.5 x 363 x 50mm 3900rpm 51dB Ball - Electronic
RS Stock No. 825-7718
Mfr. Part No.R2E225-BD92-37
Brandebm-papst
SGD455.56
Each
units
230 V ac Centrifugal AC 1340m³/h R2E225 - 225mm 99mm 225 (Dia.) x 99 Dmm 2950rpm 71dB(A) Ball - -
RS Stock No. 826-1284
Mfr. Part No.G2E140-AI28-01
Brandebm-papst
SGD637.01
Each
units
230 V Centrifugal AC 490m³/h G2E140 247.5mm 130mm 226.8mm 247.5 x 130 x 226.8mm 2350 rpm, 2400rpm - Ball 105 x 115mm Electronic
RS Stock No. 468-4725
Mfr. Part No.RL90-18/56
Brandebm-papst
SGD178.17
Each
units
230 V ac Centrifugal AC 40m³/h RL 90 N 120.6mm 120.6mm 37mm 120.6 x 120.6 x 37mm 2450rpm 56dB Ball 104.8 x 100.8mm -
RS Stock No. 825-7667
Mfr. Part No.R2E220-AA40-23
Brandebm-papst
SGD205.14
Each
units
230 V ac Centrifugal AC - R2E220 - 221.4mm 71mm 221.4 (Dia.) x 71 Dmm 2700rpm >70dB(A) Ball - -
RS Stock No. 514-2979
Mfr. Part No.RG130/0800-3612 010201
Brandebm-papst
SGD405.39
Each
units
230 V ac Hot Gas AC 115m³/h RG130 176mm 178mm 98mm 176 x 178 x 98mm 8000rpm 55dB Ball - Electronic
RS Stock No. 332-5683
Mfr. Part No.QLZ06/1800 A297-2518L-93UK
Brandebm-papst
SGD108.06
Each
units
230 V ac Tangential AC 130m³/h QLZ 96mm 251mm 83mm 96 x 251 x 83mm 1400rpm 40dB Sleeve 154 x 16.5mm -
RS Stock No. 771-9114
Mfr. Part No.QG030-148/14
Brandebm-papst
SGD170.61
Each
units
24 V dc Tangential DC 75m³/h QG 030 47.5mm 50mm 201mm 47.5 x 50 x 201mm - 49dB(A) Ball - Electronic
RS Stock No. 243-6439
Mfr. Part No.G2G085-AB04-10
Brandebm-papst
SGD400.62
Each
units
12 V dc Centrifugal DC 80m³/h G2G085 117mm 127mm 76mm 117 x 127 x 76mm 2300rpm 52dB Ball 58 x 66mm Electronic
RS Stock No. 826-1109
Mfr. Part No.D2E097-CB01-02
Brandebm-papst
SGD373.24
Each
units
230 V Centrifugal AC - D2E 097 - - - - - - - - -
RS Stock No. 221-077
Mfr. Part No.RG160-28/12N
Brandebm-papst
SGD395.41
Each
units
12 V dc Centrifugal DC 209m³/h RG 160 N 220mm 220mm 56mm 220 x 220 x 56mm 2850rpm 66dB Ball 203 x 203mm Electronic
RS Stock No. 332-4107
Mfr. Part No.G2E120-AR77-A6
Brandebm-papst
SGD445.13
Each
units
230 V ac Centrifugal AC 255m³/h G2E120 184mm 178mm 115mm 184 x 178 x 115mm 2350rpm 61dB Ball 68 x 100mm -
RS Stock No. 126-177
Mfr. Part No.PMB1275PNB4-AY(2).GN
BrandSunon
SGD36.98
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. 223-095
Mfr. Part No.G2E140-AB17-50
Brandebm-papst
SGD580.35
Each
units
240 V ac Centrifugal AC 230m³/h G2E140 261mm 226mm 130mm 261 x 226 x 130mm 1400rpm 58dB Ball 105 x 115mm -
RS Stock No. 468-4668
Mfr. Part No.RL48-19/14
Brandebm-papst
SGD91.99
Each
units
24 V dc Centrifugal DC 28m³/h RL 48 75.5mm 75.2mm 27mm 75.5 x 75.2 x 27mm 4400rpm 57dB Ball 67.1 x 45.7mm Electronic
RS Stock No. 482-089
Mfr. Part No.RL90-18/00
Brandebm-papst
SGD134.47
Each
units
115 V ac Centrifugal AC 42m³/h RL 90 N 120.6mm 120.6mm 37mm 120.6 x 120.6 x 37mm 2550rpm 60dB Sleeve 104.8 x 100.8mm -
RS Stock No. 825-7585
Mfr. Part No.R1G133-AA17-02
Brandebm-papst
SGD311.77
Each
units
24 V dc Centrifugal DC 360m³/h R1G133 - 133mm 91mm 133 (Dia.) x 91 Dmm 3900rpm 63dB(A) Ball - Electronic
RS Stock No. 175-7066
Mfr. Part No.QG030-148/12
Brandebm-papst
SGD181.05
Each
units
12 V dc Tangential DC 75m³/h QG 030 47.5mm 201mm 50mm 47.5 x 201 x 50mm 4400rpm 49dB Ball - Electronic
RS Stock No. 514-2963
Mfr. Part No.RLF100-11/12
Brandebm-papst
SGD161.56
Each
units
12 V dc Centrifugal DC 64m³/h RLF 100 127mm 127mm 25.4mm 127 x 127 x 25.4mm 5100rpm 64dB Ball 112 x 94.4mm Electronic