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 841-4909
製造零件編號G3G146-FK07-02
Brandebm-papst
HK$4,844.55
單位
200 → 240 V ac Centrifugal AC 650m³/h G3G 248.5mm 227mm 130mm 248.5 x 227 x 130mm 2320rpm 70dB Ball 105 x 115mm Electronic
RS庫存編號 332-5706
製造零件編號QLZ06/2400A47 -3020LH-25ZX
Brandebm-papst
HK$622.56
單位
230 V ac Tangential AC 120m³/h QLZ 96mm 317mm 83mm 96 x 317 x 83mm 1100rpm 33dB Sleeve - -
RS庫存編號 892-3598
製造零件編號150436-50
BrandAmetek
HK$8,419.84
單位
24 V dc Blower DC 107.04m³/h Windjammer - Bypass 5.7" 149.4mm 149.4mm 137.5mm 149.4 x 149.4 x 137.5mm - - - - Brushless
RS庫存編號 263-7834
製造零件編號RL90-18/12N
Brandebm-papst
HK$927.56
單位
12 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 892-1826
製造零件編號DR656CK72X/080582
BrandAmetek
HK$38,236.83
單位
230 V ac, 460 V ac Regenerative AC 350.49m³/h DR656 382.5mm 390.5mm 444.5mm 390.5 x 382.5 x 444.5mm - - Ball - -
RS庫存編號 218-3191
製造零件編號G2E140-AL40-01
Brandebm-papst
HK$2,921.18
單位
230 V ac Centrifugal AC 385m³/h G2E140 247mm 226mm 130mm 247 x 226 x 130mm 1650rpm 63dB Ball 105 x 115mm -
RS庫存編號 825-7857
製造零件編號RER120-26/18/2TDP
Brandebm-papst
HK$1,465.69
單位
48 V dc Centrifugal DC 390m³/h RER120 - 120mm 54mm 120 (Dia.) x 54 Dmm 6300rpm 83dB Ball - -
RS庫存編號 825-7866
製造零件編號RER133-41/18/2TDP
Brandebm-papst
HK$1,968.37
單位
48 V dc Centrifugal DC 565m³/h RER133 - 133mm 91mm 133 (Dia.) x 91 Dmm 6000rpm 82dB Ball - -
全新
RS庫存編號 202-5416
製造零件編號MF50151VX-B00U-A99
BrandSunon
HK$147.23
單位
12 V - Dc 5.4cfm MF - - - 50 x 50 x 15mm - - - - -
RS庫存編號 826-1102
製造零件編號D1G133-AB29-14
Brandebm-papst
HK$6,060.11
單位
24 V dc Centrifugal DC - D1G 133 - - - - 1780rpm - - - -
RS庫存編號 892-1839
製造零件編號DR656K72X/080602
BrandAmetek
HK$42,047.26
單位
230 V ac, 460 V ac Regenerative AC 130.18m³/h DR656 382.5mm 390.5mm 406.4mm 390.5 x 382.5 x 406.4mm - - Ball - -
RS庫存編號 860-0289
製造零件編號R2D160-AC02-13
Brandebm-papst
HK$2,689.29
單位
- Centrifugal AC - R2D160 - - - - - - Ball - -
RS庫存編號 180-3030
製造零件編號TF037C-2100-F
HK$1,604.37
單位
24 V dc Blower DC 1.6L/s TF037C 50.5mm 40.4mm 54mm 40.4 x 50.5 x 54mm 40000rpm 67dB(A) Ball - Brushless
RS庫存編號 892-1891
製造零件編號EN404AR58ML/038173
BrandAmetek
HK$30,346.89
單位
115 V ac, 230 V ac Regenerative AC 166.9m³/h EN404 416.8mm 257.3mm 311.2mm 257.3 x 416.8 x 311.2mm - - Ball - -
RS庫存編號 191-9313
製造零件編號9BMB24P2K01
HK$204.56
單位
24 V dc Blower DC 56.8cfm San Ace B97 97mm 97mm 33mm 97 x 97 x 33mm 6850rpm 57dB(A) - 71 x 71mm -
RS庫存編號 892-3478
製造零件編號119378-52
BrandAmetek
HK$6,158.38
單位
24 V dc Blower DC 71.29m³/h Minijammer 5.0" 127mm 127mm 71.6mm 127 x 127 x 71.6mm - - - - Brushless
RS庫存編號 191-9306
製造零件編號9BD12SC6-1
HK$184.18
單位
12 V dc Blower DC 10.2cfm San Ace B76 76mm 76mm 20mm 76 x 76 x 20mm 4500rpm 43dB(A) - 57 x 57mm -
RS庫存編號 221-077
製造零件編號RG160-28/12N
Brandebm-papst
HK$2,058.97
單位
12 V dc Centrifugal DC 209m³/h RG160 220mm 220mm 56mm 220 x 220 x 56mm 2850rpm 66dB Ball 203 x 203mm Electronic
RS庫存編號 892-1908
製造零件編號EN757F72XL/081174
BrandAmetek
HK$66,025.96
單位
230 V ac, 460 V ac Regenerative AC 517.39m³/h EN757 443mm 425.5mm 553.4mm 425.5 x 443 x 553.4mm - - Ball - -
RS庫存編號 243-6445
製造零件編號G2G085-AB02-01
Brandebm-papst
HK$1,612.25
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