Centrifugal Fans

Centrifugal fans are also known as blowers and normally constructed as a fixed drum shape 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. You can find out more in our centrifugal fans guide.

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 to 11500 rpm.

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.

Centrifugal fans 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, backwards 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 892-2078
製造零件編號SE2B21 (081901)
BrandAmetek
HK$5,584.66
單位
110 V ac, 115 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, 3400rpm - Ball - -
RS庫存編號 892-3380
製造零件編號119101-01
BrandAmetek
HK$12,313.92
單位
120 V ac Blower Ac 238.76m³/h Windjammer - Bypass 5.7" 150mm 150mm 153.7mm 150 x 150 x 153.7mm - - - - Brushless
RS庫存編號 892-2087
製造零件編號SE2B21A/080694
BrandAmetek
HK$6,388.60
單位
110 V ac, 115 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, 3400rpm - Ball - -
RS庫存編號 892-3623
製造零件編號150918-50
BrandAmetek
HK$4,178.38
單位
5 → 14 V dc Blower DC 41.8m³/h Microjammer 3.0" 74.7mm 77.7mm 88.1mm 77.7 x 74.7 x 88.1mm - - - - Brushless
RS庫存編號 892-3403
製造零件編號119151-51
BrandAmetek
HK$13,588.64
單位
240 V ac Blower Ac 305.82m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless
RS庫存編號 892-3431
製造零件編號119155-52
BrandAmetek
HK$13,725.29
單位
240 V ac Blower Ac 455.33m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless
RS庫存編號 892-1738
製造零件編號DR454R58M/080481
BrandAmetek
HK$32,404.31
單位
115 V ac, 230 V ac Regenerative AC 200.28m³/h DR454 343mm 318mm 367mm 318 x 343 x 367mm - - Ball - -
RS庫存編號 892-3594
製造零件編號150434-50
BrandAmetek
HK$8,409.10
單位
24 V dc Blower DC 214.87m³/h Windjammer - Bypass 5.7" 149.4mm 149.4mm 131.1mm 149.4 x 149.4 x 131.1mm - - - - Brushless
RS庫存編號 892-3566
製造零件編號150400-50
BrandAmetek
HK$8,805.25
單位
24 V dc Blower DC 221.74m³/h Windjammer - Bypass 5.7" 149.4mm 149.4mm 153.5mm 149.4 x 149.4 x 153.5mm - - - - Brushless
RS庫存編號 892-3475
製造零件編號119379-52
BrandAmetek
HK$7,260.25
單位
24 V dc Blower DC 64.24m³/h Minijammer 5.0" 127mm 127mm 71.6mm 127 x 127 x 71.6mm - - - - Brushless
RS庫存編號 892-3465
製造零件編號119378-01
BrandAmetek
HK$9,108.84
單位
24 V dc Blower DC 74.76m³/h Minijammer 5.0" 127mm 127mm 71.6mm 127 x 127 x 71.6mm - - - - Brushless
RS庫存編號 892-3576
製造零件編號150403-50
BrandAmetek
HK$8,499.71
單位
24 V dc Blower DC 214.87m³/h Windjammer - Bypass 5.7" 149.4mm 149.4mm 131.1mm 149.4 x 149.4 x 131.1mm - - - - Brushless
RS庫存編號 892-1914
製造零件編號EN858BD72WL/038744
BrandAmetek
HK$94,079.09
單位
230 V ac, 460 V ac Regenerative AC 634.22m³/h EN858 660.4mm 472.4mm 622.3mm 472.4 x 660.4 x 622.3mm - - Ball - -
RS庫存編號 892-1671
製造零件編號DR101Y9M/038936
BrandAmetek
HK$20,866.22
單位
115 V ac, 230 V ac Regenerative AC 51.73m³/h DR101 211mm 199mm 292mm 199 x 211 x 292mm - - - - -
RS庫存編號 892-3605
製造零件編號150524-00
BrandAmetek
HK$10,624.88
單位
240 V ac Blower Ac 270.99m³/h Nautilair 7.6" 189.5mm 204.22mm 138.4mm 204.22 x 189.5 x 138.4mm - - - - Brushless
RS庫存編號 892-3421
製造零件編號119153-51
BrandAmetek
HK$10,701.48
單位
240 V ac Blower Ac 237.68m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless
RS庫存編號 892-3471
製造零件編號119379-05
BrandAmetek
HK$8,152.02
單位
24 V dc Blower DC 64.24m³/h Minijammer 5.0" 127mm 127mm 71.6mm 127 x 127 x 71.6mm - - - - Brushless
RS庫存編號 892-3620
製造零件編號150908-50
BrandAmetek
HK$4,389.66
單位
24 V dc Blower DC 45.07m³/h Microjammer 3.0" 74.7mm 77.7mm 88.1mm 77.7 x 74.7 x 88.1mm - - - - Brushless
RS庫存編號 892-3412
製造零件編號119152-01
BrandAmetek
HK$16,075.31
單位
240 V ac Blower Ac 305.82m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless
RS庫存編號 892-3428
製造零件編號119153-50
BrandAmetek
HK$16,336.27
單位
240 V ac Blower Ac 237.68m³/h Windjammer - Bypass 5.7" 150mm 150mm - - - - - - Brushless