Centrifugal fans & blowers
Powerful air circulation for industry and electronics
Centrifugal fans and blowers are key solutions for applications where efficient air circulation and targeted cooling are required. They are used especially when air has to pass through ducts, filters or other resistance in enclosures, machines or systems.
The difference is that centrifugal fans are often used for general air circulation and ventilation at moderate pressure, while blowers are specially designed for higher pressure and more directional airflow - ideal for industrial processes and high resistance enclosures.
Swelex offers a complete range of both centrifugal fans and blowers, with different sizes, voltages and performance levels for standard applications as well as customised solutions for demanding environments.
Advantages of centrifugal fans & blowers
- High pressure capacity and directional airflow
- Stable operation under load and continuous use
- Long life and robust construction
- Energy-efficient solutions, even for high-load systems
- Flexible options for standard and customised applications
Typical applications
- Industrial electronics: cabinets, control systems, frequency converters
- Machinery & automation: Robots, production equipment, process air systems
- Telecoms & data centres: servers, network equipment, high-performance IT systems
- Power & energy systems: UPS, charging stations, battery management
- Harsh environments: Environments with dust, moisture, vibration or extreme temperatures
DC Centrifugal Blowers
DC centrifugal blowers are fans that use the centrifugal principle to create airflow with high static pressure. The air is drawn in axially and discharged perpendicular to the axis of the impeller, making them ideal for ventilation systems, HVAC applications and machinery where pressure rather than flow is critical.
- High energy efficiency and low energy consumption
- Robust construction and long lifetime
- Protection against overloading
- Versatile applications
- Easy installation and maintenance
EC Centrifugal Blowers
EC centrifugal blowers combine the centrifugal principle with electronically commutated (EC) motors for high energy efficiency and precise flow control.
- Electronically commutated motor for high energy efficiency
- Optional inlet nozzle & mounting bracket
- Variable voltage and 0-10 V PWM speed control
- Communication possibilities via RS485 & Modbus
- UL/cUL certified
FAQ - Frequently asked questions
What is the difference between centrifugal fans and blowers?
- Centrifugal fans are often used for general air circulation with moderate back pressure, while blowers are high-pressure variants designed to push air through ducts, filters or complex systems.
When to choose a blower instead of a centrifugal fan?
- If the application requires higher pressure, directional airflow or the air has to pass resistance, a blower is the best choice.
Can centrifugal fans and blowers be controlled electronically?
- Yes, Swelex offers EC versions with precise speed control, as well as PWM and voltage controlled options.
Does Swelex offer customised solutions?
- Yes, we can customise the fan size, speed, voltage, IP rating and accessories to optimise the airflow for your application.