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庫存編號 482-089
製造零件編號RL90-18/00
Brandebm-papst
HK$538.62
單位
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庫存編號 251-132
製造零件編號REF100-11/14
Brandebm-papst
HK$605.00
單位
24 V dc Centrifugal DC 86m³/h REF100 - 104mm 24.9mm - 5400rpm 63dB Ball - Electronic
RS庫存編號 233-9439
製造零件編號G4E180-GS11-01
Brandebm-papst
HK$3,260.40
單位
230 V ac Centrifugal AC 910m³/h G4E180 332mm 296mm 183mm 332 x 296 x 183mm 1170rpm 66dB Ball 258 x 163mm -
RS庫存編號 434-9848
製造零件編號QLK45/1818A4-3030LH-16WT
Brandebm-papst
HK$1,061.45
單位
230 V ac Tangential AC 220m³/h QLK 79mm 492mm 71mm 71 x 510 x 79mm 2050rpm - - - -
RS庫存編號 892-3425
製造零件編號119154-51
BrandAmetek
HK$10,785.58
單位
240 V ac Blower Ac 237.86m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless
RS庫存編號 787-8967
製造零件編號FW1251-A1051C2AL
BrandARX
HK$106.97
單位
12 V dc Blower DC 6.97m³/h CeraDyna 51mm 51mm 15mm 51 x 51 x 15mm 5500rpm 37dB(A) Sleeve - -
RS庫存編號 871-9682
製造零件編號K2E250-RA50-11
Brandebm-papst
HK$2,342.998
/個 (每包:10個)
單位
230 V Centrifugal AC - K2E 250 - - - - - - - - -
RS庫存編號 825-7875
製造零件編號RER175-42/18/2TDPU
Brandebm-papst
HK$3,325.94
單位
18 V dc Centrifugal DC 980m³/h RER175 - 175mm 69mm 175 (Dia.) x 69 Dmm 5400rpm 85dB Ball - -
RS庫存編號 892-3437
製造零件編號119155-06
BrandAmetek
HK$16,027.22
單位
240 V ac Blower Ac 455.33m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless
RS庫存編號 892-1706
製造零件編號DR303AE86M/038843
BrandAmetek
HK$23,838.09
單位
575 V ac Regenerative AC 91.79m³/h DR303 254mm 244.6mm 303mm 244.6 x 254 x 303mm - - - - -
RS庫存編號 468-4674
製造零件編號RG125-19/12N
Brandebm-papst
HK$578.52
單位
12 V dc Centrifugal DC 87.5m³/h RG125 180mm 180mm 40mm 180 x 180 x 40mm 2550rpm 58dB Ball 165 x 165mm Electronic
RS庫存編號 468-4680
製造零件編號RG125-19/14N
Brandebm-papst
HK$528.00
單位
24 V dc Centrifugal DC 87.5m³/h RG125 180mm 180mm 40mm 180 x 180 x 40mm 2550rpm 56dB Ball 165 x 165mm Electronic
RS庫存編號 892-1740
製造零件編號DR454R86M/080482
BrandAmetek
HK$31,105.11
單位
575 V ac Regenerative AC 200.28m³/h DR454 343mm 318mm - - - - Ball - -
RS庫存編號 892-1756
製造零件編號DR505AS72MA/081248
BrandAmetek
HK$30,480.20
單位
230 V ac, 460 V ac Regenerative AC 150scfm DR505 366.5mm 345.2mm - - - - Ball - -
RS庫存編號 892-1712
製造零件編號DR353BR86M/080556
BrandAmetek
HK$24,248.55
單位
575 V ac Regenerative AC 166.9m³/h DR353 311mm 292mm - - - - - - -
全新
RS庫存編號 191-9314
製造零件編號9BMB24S201
HK$261.19
單位
24 V dc Blower DC 43.1cfm San Ace B97 97mm 97mm 33mm 97 x 97 x 33mm 5250rpm 59dB(A) - 71 x 71mm -
RS庫存編號 892-3835
製造零件編號516515
BrandAmetek
HK$6,642.49
單位
- - - - - - - - - - - - - -
RS庫存編號 892-1716
製造零件編號DR353BR9M/080554
BrandAmetek
HK$22,495.96
單位
115 V ac, 230 V ac Regenerative AC 166.9m³/h DR353 311mm 292mm 355mm 292 x 311 x 355mm - - - - -
RS庫存編號 712-5244
製造零件編號WT24B3 19031102A
HK$341.29
單位
24 V dc Blower DC 15cfm Whiffet 80mm 80mm 32mm 80 x 80 x 32mm 4050rpm 52.2dB(A) Ball 71.37 x 71.37mm Brushless
RS庫存編號 892-2080
製造零件編號SE3B21/036283
BrandAmetek
HK$5,597.15
單位
230 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 - -