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庫存編號 250-864
製造零件編號RV40-18/12H
Brandebm-papst
HK$649.52
單位
12 V dc Centrifugal DC 24m³/h RV40 77.3mm 102.44mm 58.8mm 77.3 x 102.44 x 58.85mm 4800rpm 50dB Ball - Electronic
RS庫存編號 217-4254
製造零件編號R2S175-AB56-01
Brandebm-papst
HK$1,232.39
單位
230 V ac Centrifugal AC 445m³/h R2S175 - 175mm 69mm - 2350rpm 61dB Ball - -
RS庫存編號 278-1565
製造零件編號R2K150-AC01-15
Brandebm-papst
HK$942.79
單位
230 V ac Hot Gas AC 200m³/h R2K - 152mm 98.5mm - 2000rpm - Ball - -
RS庫存編號 434-9832
製造零件編號QLK45/2400A32-2524L-58
Brandebm-papst
HK$742.20
單位
230 V ac Tangential AC 190m³/h QLK 79mm 331mm 71mm 79 x 331 x 71mm 2300rpm - - 212 x 16.5mm -
RS庫存編號 175-7072
製造零件編號QG030-303/14
Brandebm-papst
HK$1,483.04
單位
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庫存編號 233-9451
製造零件編號D2E133-AM47-23
Brandebm-papst
HK$3,190.09
單位
230 V ac Centrifugal AC 710m³/h D2E 133 198mm 171.5mm 254mm 198 x 171.5 x 254mm 1800rpm 59dB Ball 92 x 238mm -
RS庫存編號 826-1225
製造零件編號FE1Q-115-060-01
Brandebm-papst
HK$2,111.00
單位
115 V ac Tangential AC - FE1Q - - - - - - - - -
RS庫存編號 434-9826
製造零件編號QLK45/1800A118-2518L-73RH
Brandebm-papst
HK$787.82
單位
230 V ac Tangential AC 125m³/h QLK 79mm 265mm 71mm 79 x 265 x 71mm 2200rpm - - - -
RS庫存編號 826-1118
製造零件編號D2E133-AM47-01
Brandebm-papst
HK$3,180.46
單位
230 V Centrifugal AC 700m³/h D2E 133 180mm 254mm 171.5mm 180 x 254 x 171.5mm 2100rpm 59dB Ball 92 x 238mm Electronic
RS庫存編號 892-3380
製造零件編號119101-01
BrandAmetek
HK$12,495.31
單位
120 V ac Blower Ac 238.76m³/h Windjammer - Bypass 5.7" 150mm 150mm 153.7mm 150 x 150 x 153.7mm - - - - Brushless
RS庫存編號 218-3208
製造零件編號G2E120-AR77-01
Brandebm-papst
HK$2,332.28
單位
230 V ac Centrifugal AC 260m³/h G2E120 184mm 178mm 115mm 184 x 178 x 115mm 2350rpm 61dB Ball 68 x 100mm -
RS庫存編號 498-8550
製造零件編號R2E 180-AS77-05
Brandebm-papst
HK$1,430.51
單位
230 V ac Centrifugal AC 570m³/h R2E180 180mm 180mm 78mm 180 (Dia.) x 78mm 2300rpm 63dB Ball 58 x 58mm -
RS庫存編號 468-4652
製造零件編號RL48-19/12
Brandebm-papst
HK$539.58
單位
12 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庫存編號 243-6417
製造零件編號QG030-198/14
Brandebm-papst
HK$1,094.51
單位
24 V dc Tangential DC 100m³/h QG 030 47.5mm 258mm 50mm 47.5 x 258 x 50mm 4250rpm 51dB Ball - Electronic
RS庫存編號 243-6423
製造零件編號QG030-303/12
Brandebm-papst
HK$1,085.68
單位
12 V dc Tangential DC 139.4m³/h QG 030 47.5mm 363mm 50mm 47.5 x 363 x 50mm 3900rpm 51dB Ball - Electronic
RS庫存編號 250-858
製造零件編號RLF35-8/14N
Brandebm-papst
HK$687.67
單位
24 V dc Centrifugal DC 9.6m³/h RLF 35 51mm 51mm 15mm 51 x 51 x 15mm 6700rpm 55dB Ball 43 x 38mm Electronic
RS庫存編號 892-3623
製造零件編號150918-50
BrandAmetek
HK$4,239.93
單位
5 → 14 V dc Blower DC 41.8m³/h Microjammer 3.0" 74.7mm 77.7mm 88.1mm 77.7 x 74.7 x 88.1mm - - - - Brushless
RS庫存編號 802-9456
製造零件編號R3G250-RE07-07
Brandebm-papst
HK$3,444.78
單位
230 V ac Centrifugal AC 1430m³/h RadiCal - 250 (Dia.)mm 99mm 250 (Dia.) x 99mm 2510rpm - Ball - Electronic
RS庫存編號 175-7066
製造零件編號QG030-148/12
Brandebm-papst
HK$1,266.14
單位
12 V dc Tangential DC 75m³/h QG 030 47.5mm 201mm 50mm 47.5 x 201 x 50mm 4400rpm 49dB Ball - Electronic
RS庫存編號 233-9439
製造零件編號G4E180-GS11-01
Brandebm-papst
HK$6,135.61
單位
230 V ac Centrifugal AC 910m³/h G4E180 332mm 296mm 183mm 332 x 296 x 183mm 1170rpm 66dB Ball 258 x 163mm -