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 892-1885
製造零件編號DRS7X72/036085
BrandAmetek
HK$75,740.68
單位
230 V ac, 460 V ac Regenerative AC - - 585mm 417.6mm 416.1mm 416.1 x 417.6 x 585mm - - Ball - -
RS庫存編號 243-6445
製造零件編號G2G085-AB02-01
Brandebm-papst
HK$1,564.98
單位
24 V dc Centrifugal DC 80m³/h G2G085 117mm 127mm 76mm 117 x 127 x 76mm 2500rpm 53dB Ball 58 x 66mm Electronic
RS庫存編號 126-408
製造零件編號PMB2475PNB1-AY(2).GN
BrandSunon
HK$223.98
單位
24 V dc Blower DC 23m³/h PMB 75.7mm 75.7mm 30mm 75.7 x 75.7 x 30mm 3400rpm 43.5dB Ball - Electronic
全新
RS庫存編號 191-9310
製造零件編號9BMB12P2K01
HK$292.09
單位
12 V dc Blower DC 56.8cfm 9BMB - 96.5 Dia.mm 33mm 96.5 Dia. x 33mm - 66dB(A) Ball 71 x 84mm -
RS庫存編號 180-3023
製造零件編號TF037F-2000-F
HK$13,781.20
毎盒:12 個
Box(es)
12 → 24 V dc Blower DC - TF037F 50.5mm 53.78mm 34.3mm 50.5 x 53.78 x 34.3mm - 65dB(A) - - -
RS庫存編號 860-0291
製造零件編號G3G120-BB13-02
Brandebm-papst
HK$3,283.84
單位
115 V ac Centrifugal AC - G3G120 190mm 178mm 115mm 190 x 178 x 115mm 2320rpm - Ball 68 x 100mm Electronic
RS庫存編號 825-7633
製造零件編號R2E175-AO79-12
Brandebm-papst
HK$1,179.62
單位
115 V ac Centrifugal AC 570m³/h R2E175 - 175mm - - 3100rpm 68dB(A) Ball - -
RS庫存編號 892-1857
製造零件編號DR757D86X/081171
BrandAmetek
HK$56,033.00
單位
- Regenerative AC - - 443mm 426mm 471mm 443 x 426 x 471mm - - Ball - -
RS庫存編號 825-7677
製造零件編號R2E220-AA44-23
Brandebm-papst
HK$1,019.19
單位
115 V ac Centrifugal AC - R2E220 - 221.4mm 71mm 221.4 (Dia.) x 71 Dmm 2700rpm >70dB(A) Ball - -
RS庫存編號 892-3471
製造零件編號119379-05
BrandAmetek
HK$6,563.09
單位
24 V dc Blower DC 75.8m³/h - - 127 (Dia.)mm 71.6mm 127 (Dia.) x 71.6mm - - - - Brushless
RS庫存編號 892-1744
製造零件編號DR505AS58M/037542
BrandAmetek
HK$28,550.98
單位
115 V ac, 230 V ac Regenerative AC - - 366.5mm 345.2mm 397mm 366.5 x 345.2 x 397mm - - Ball - -
RS庫存編號 892-1728
製造零件編號DR404AL72M/037406
BrandAmetek
HK$22,013.90
單位
230 V ac, 460 V ac Regenerative AC - - 309.4mm 292.1mm 360.2mm 309.4 x 292.1 x 360.2mm - - Ball - -
RS庫存編號 826-1290
製造零件編號G2E150-BA52-07
Brandebm-papst
HK$1,531.62
單位
- Centrifugal AC - G2E 150 - - - - - - - - -
RS庫存編號 825-7881
製造零件編號RG125-19/12N/12
Brandebm-papst
HK$788.88
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 -
RS庫存編號 826-1269
製造零件編號G2D160-AF02-01
Brandebm-papst
HK$4,352.26
單位
- Centrifugal AC - G2D 160 - - - - - - - - -
RS庫存編號 144-4135
BrandRS PRO
HK$106.29
單位
12 V dc Blower DC 2.4cfm - - 51.11mm 15mm - 3500rpm 32dB Ball 43 x 38mm Brushless
RS庫存編號 825-7639
製造零件編號R2E175-AO77-14
Brandebm-papst
HK$1,539.57
單位
- Centrifugal AC 570m³/h R2E175 - 175mm - - 3100rpm 68dB(A) Ball - -
RS庫存編號 892-1756
製造零件編號DR505AS72MA/081248
BrandAmetek
HK$30,480.20
單位
- Regenerative AC - - 366.5mm 345.2mm - - - - Ball - -
RS庫存編號 825-7908
製造零件編號RL65-21/12/2
Brandebm-papst
HK$523.36
單位
12 V dc Centrifugal DC 56m³/h RL65 93.5mm 97mm 33mm 93.5 x 97 x 33mm 4500rpm 66dB Ball 71 x 71mm -
RS庫存編號 892-1680
製造零件編號DR14DW72MW (081476)
BrandAmetek
HK$167,352.71
單位
230 V ac, 460 V ac Regenerative AC - - 701mm 446.3mm 801.4mm 701 x 446.3 x 801.4mm - - Ball - -