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 126-436
製造零件編號PMB1212PLB2-A(2).GN
BrandSunon
HK$245.06
單位
12 V dc Blower DC 61m³/h PMB 120mm 120mm 32mm 120 x 120 x 32mm 2500rpm 53.8dB Ball 105 x 105mm Electronic
RS庫存編號 126-414
製造零件編號GB1205PKV1-8AY.GN
BrandSunon
HK$155.42
單位
12 V dc Blower DC 9.7m³/h GB 50mm 50mm 20mm 50 x 50 x 20mm 5200rpm 35dB Vapo - Electronic
RS庫存編號 126-111
製造零件編號PMB2412PLB2-A(2).GN
BrandSunon
HK$446.51
單位
24 V dc Blower DC 61m³/h PMB 120mm 120mm 32mm 120 x 120 x 32mm 2500rpm 53.8dB Ball 105 x 105mm 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
RS庫存編號 126-442
製造零件編號PMB2475PNB4-AY(2).GN
BrandSunon
HK$197.10
單位
24 V dc Blower DC 12.75m³/h PMB 75.7mm 75.7mm 30mm 75.7 x 75.7 x 30mm 1900rpm 28dB Ball - Electronic
RS庫存編號 126-149
製造零件編號PMB4812PLB3-A(2).GN
BrandSunon
HK$212.91
單位
48 V dc Blower DC 53.4m³/h PMB 120mm 120mm 32mm 120 x 120 x 32mm 2100rpm 49.6dB Ball 105 x 105mm Electronic
RS庫存編號 126-133
製造零件編號PMB2497PYB1-AY(2).GN
BrandSunon
HK$250.84
單位
24 V dc Blower DC 51.8m³/h PMB 97.2mm 94.4mm 33mm 97.2 x 94.4 x 33mm 3600rpm 55.8dB Ball - Electronic
RS庫存編號 126-127
製造零件編號PMB4897PYB1-AY(2).GN
BrandSunon
HK$264.61
單位
48 V dc Blower DC 52m³/h PMB 97.2mm 94.4mm 33mm 97.2 x 94.4 x 33mm 3600rpm 55.8dB Ball - Electronic
RS庫存編號 126-391
製造零件編號PMB1275PNB1-AY(2).GN
BrandSunon
HK$156.07
單位
12 V dc Blower DC 23m³/h PMB 75.7mm 75.7mm 30mm 75.7 x 75.7 x 30mm 3400rpm 43.5dB Ball 67.1 x 45.7mm Electronic
RS庫存編號 126-420
製造零件編號PMB1297PYB1-AY(2).GN
BrandSunon
HK$217.99
單位
12 V dc Blower DC 52m³/h PMB 97.2mm 94.4mm 33mm 97.2 x 94.4 x 33mm 3600rpm 55.8dB Ball - Electronic
RS庫存編號 126-177
製造零件編號PMB1275PNB4-AY(2).GN
BrandSunon
HK$187.61
單位
12 V dc Blower DC 12.75m³/h PMB 75.7mm 75.7mm 30mm 75.7 x 75.7 x 30mm 1900rpm 28dB Ball - Electronic