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 876-5162
製造零件編號D3G133-BF05-14
Brandebm-papst
HK$1,605.63
單位
- Centrifugal - - D3G133 - - - - - - Ball - -
RS庫存編號 892-2087
製造零件編號SE2B21A/080694
BrandAmetek
HK$5,143.55
單位
110 V ac, 115 V ac Regenerative AC - - 105.66mm 104.4mm 45.72mm 105.66 x 104.4 x 45.72mm 2850 rpm, 3400 rpm - Ball - -
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 37.5dB(A) CeraDyna A 43.2 x 38.3mm Electronic
RS庫存編號 223-095
製造零件編號G2E140-AB17-50
Brandebm-papst
HK$2,474.17
單位
240 V ac Centrifugal AC 230m³/h G2E140 261mm 226mm 130mm 261 x 226 x 130mm 1400rpm 58dB Ball 105 x 115mm -
RS庫存編號 468-4668
製造零件編號RL48-19/14
Brandebm-papst
HK$288.75
單位
24 V dc Centrifugal DC 28m³/h RL48 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 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 802-9456
製造零件編號R3G250-RE07-07
Brandebm-papst
HK$2,789.83
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 250-858
製造零件編號RLF35-8/14N
Brandebm-papst
HK$332.06
單位
24 V dc Centrifugal DC 9.6m³/h RLF35 51mm 51mm 15mm 51 x 51 x 15mm 6700rpm 55dB Ball 43 x 38mm 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 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 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 332-4078
製造零件編號D2E097-BI56-50
Brandebm-papst
HK$1,946.06
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 243-6417
製造零件編號QG030-198/14
Brandebm-papst
HK$859.45
單位
24 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 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 157.2mm 150 (Dia.) x 157.2mm - - - - Brushless
RS庫存編號 892-3623
製造零件編號150918-50
BrandAmetek
HK$3,364.02
單位
12 V dc Blower DC 39.31m³/h Microjammer 3.0" 74.7mm 77.7mm 88.1mm 74.7 x 77.7 x 88.1mm - - - - Brushless
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 136.4mm 150 (Dia.) x 136.4mm - - - - Brushless
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 787-8960
製造零件編號FW2451-A1051C2AL
BrandARX
HK$104.15
單位
24 V dc Blower DC 6.97m³/h CeraDyna 51mm 51mm 15mm 51 x 51 x 15mm 5500rpm 37.5dB(A) CeraDyna A 43.2 x 38.3mm Electronic
RS庫存編號 243-6401
製造零件編號QG030-198/12
Brandebm-papst
HK$849.25
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 825-7875
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 - -