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Filter LONGWELL Centrifugal Blower Fan models by airflow, static pressure, voltage or size. Every model on the Fan Selector lists its measured or digitised curve, dimensional drawing and datasheet.
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Library: Ø25–1,000 mm, single units up to about 52,000 m³/h — larger duties go straight to an engineer. Prefer to talk it through? Send your specs to an engineer

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Centrifugal Blower Fan

Energy conservation is crucial today, especially in ventilation and air conditioning. Longwell has developed a complete product range of dual-inlet, direct-drive centrifugal blowers with efficient Brushless EC technology for these applications.

Our integrated motor electronics enable convenient, infinitely variable speed control of the EC fans. Up to three air flow levels can be programmed in “Constant Flow” mode, ensuring a constant air flow even if resistance changes, such as when filters become clogged.

Switching from a traditional fan with an asynchronous motor to our modern, energy-saving technology is seamless and requires no design modifications.

Longwell Centrifugal Blower Fans generate strong, steady airflow for heating, cooling, and air-cleaning systems. They are designed for efficiency, durability, and low vibration operation.
Featuring backward or forward curved impellers, Longwell blowers offer flexible performance options for different industrial and commercial ventilation needs.