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 243-6401
製造零件編號QG030-198/12
Brandebm-papst
HK$914.86
單位
12 V dc Tangential DC 100m³/h QG030 47.5mm 258mm 50mm 47.5 x 258 x 50mm 4250rpm 51dB Ball - Electronic
RS庫存編號 825-7835
製造零件編號R4E355-AF13-09
Brandebm-papst
HK$2,982.03
單位
115 V ac Centrifugal AC 2740 m³/h, 3190 m³/h R4E355 - 355mm - - 1630rpm 68 dB(A), 70 dB(A) Ball - -
RS庫存編號 332-4078
製造零件編號D2E097-BI56-50
Brandebm-papst
HK$1,984.98
單位
230 V ac Centrifugal AC 435m³/h D2E 097 165mm 146mm 162mm 165 x 162 x 146mm 1950rpm 58dB Ball 88 x 168mm -
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
- - - - - - - - - - - - - -
RS庫存編號 251-132
製造零件編號REF100-11/14
Brandebm-papst
HK$752.88
單位
- - - - - - - - - - - - - -
RS庫存編號 175-7066
製造零件編號QG030-148/12
Brandebm-papst
HK$1,008.27
單位
- - - - - - - - - - - - - -
RS庫存編號 825-7875
製造零件編號RER175-42/18/2TDPU
Brandebm-papst
HK$3,758.61
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$18,798.67
單位
240 V ac Blower Ac 455.33m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless
RS庫存編號 825-7598
製造零件編號R1G190-AB25-02
Brandebm-papst
HK$2,019.71
單位
48 V dc Centrifugal DC 620m³/h R1G190 - 190mm 68.5mm 190 (Dia.) x 68.5 Dmm 2950rpm 68dB(A) Ball - Electronic
RS庫存編號 825-7601
製造零件編號R1G190-AC11-52
Brandebm-papst
HK$2,333.84
單位
48 V dc Centrifugal DC 560m³/h R1G190 - 190mm 68.5mm 190 (Dia.) x 68.5 Dmm 3250rpm 68dB(A) Ball - Electronic
RS庫存編號 217-4181
製造零件編號R2E133-BH66-05
Brandebm-papst
HK$1,571.40
單位
230 V ac Centrifugal AC 290m³/h R2E - 133mm 91mm - 2800rpm 56dB Ball - -
RS庫存編號 841-4892
製造零件編號D3G180-AB62-01
Brandebm-papst
HK$3,946.43
單位
- - - - - - - - - - - - - -
RS庫存編號 218-3191
製造零件編號G2E140-AL40-01
Brandebm-papst
HK$2,921.18
單位
- - - - - - - - - - - - - -
RS庫存編號 892-2056
製造零件編號NC33A33G/ 037793
BrandAmetek
HK$26,595.71
單位
230 V ac Regenerative SPA AC 901.26m³/h Nautilair 273mm 184mm 306mm 184 x 273 x 306mm 2900 rpm, 3500 rpm - Ball 120.7 x 108mm -
RS庫存編號 825-7605
製造零件編號R1G190-AC37-52
Brandebm-papst
HK$2,556.26
單位
24 V dc Centrifugal DC 560m³/h R1G190 - 190mm 68.5mm 190 (Dia.) x 68.5 Dmm 3250rpm 68dB(A) Ball - Electronic
RS庫存編號 871-9686
製造零件編號R2D180-AL10-13
Brandebm-papst
HK$2,344.948
/個 (每包:10個)
單位
- Centrifugal AC - R2D180 - 180mm - - - - - - -
RS庫存編號 841-4895
製造零件編號D3G146-AH50-11
Brandebm-papst
HK$3,349.16
單位
- - - - - - - - - - - - - -
RS庫存編號 263-7828
製造零件編號RL90-18/14N
Brandebm-papst
HK$930.20
單位
24 V dc Centrifugal DC 40m³/h RL90 120.6mm 120.6mm 37.3mm 120.6 x 120.6 x 37.3mm 2500rpm 58dB Ball 104.8 x 100.8mm Electronic
RS庫存編號 825-7787
製造零件編號R3G280-AF19-01
Brandebm-papst
HK$6,656.59
單位
230 V ac Centrifugal AC 2020m³/h R3G280 - 280mm - - 1300 rpm, 1965 rpm, 2000 rpm, 2600 rpm 70dB(A) Ball - -
RS庫存編號 892-3762
製造零件編號515132
BrandAmetek
HK$1,481.71
單位
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