Briefly summarized: Centrifugal Fan
Centrifugal fans – also known as radial fans – are used in virtually every type of application and are available in various designs and drive configurations. The wide product range covers everything from low-pressure to high-pressure fans. We offer the right centrifugal fan for every requirement, featuring a performance curve precisely tailored to the specified operating point. Whether high or low process temperatures, aggressive media or solids, explosion-proof designs in accordance with ATEX, low sound power in the standard version, or custom-made solutions for integration into customer-specific systems – your challenge is our drive.
What are centrifugal fans?
Centrifugal fans offer high efficiency and operate with relatively low noise levels. They are capable of conveying both gases and solid particles within the air or gas stream, and their design allows them to generate very high pressures. This makes them particularly suitable for overcoming high resistance, and they are often used in combination with filtration systems or other process applications such as heating or cooling systems.
The video provides a concise explanation of all fan types and shows the differences in their operating principles at a glance.
How do centrifugal fans work?
Centrifugal fans operate using an impeller with blades that rotate around a central axis. The rotation of the impeller generates pressure within the fan housing and creates a radial (i.e., outward circular) airflow that exits the housing. The speed or volume of the airflow can be influenced by the fan’s rotational speed and the geometry of the blades. A distinction is typically made between clean gas transport and material transport, and the components are adapted accordingly.
What is the difference between centrifugal and axial fans?
Centrifugal fans and axial fans (also referred to as axial blowers) are both types of fans used to move media – most commonly air or gases, but potentially also solid and liquid particles in the airflow. The key difference consists in the direction of airflow. An axial fan moves air in a straight line, similar to an airplane propeller. It is often used for moving large volumes of air and is commonly found in cooling applications for electronic devices. A centrifugal fan, on the other hand, draws air in along the axis of the impeller and then deflects it 90 degrees to move it radially outward from the impeller axis.
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Applications of centrifugal fans
Centrifugal fans are used in a wide range of applications — from air conditioning in buildings to the extraction of exhaust gases or particulate matter. They are particularly useful in scenarios that require higher pressure, such as in industrial environments, navy, or when used in combination with filters. Centrifugal fans can also be integrated into cooling and heating systems to increase airflow and enhance the system’s overall efficiency.
What are the advantages of centrifugal fans?
High efficiency: Centrifugal fans typically have a higher efficiency than axial fans and can move larger volumes of air with less energy consumption.
Greater pressure capability: They can generate higher static pressure than axial fans, making them ideal for demanding applications.
Versatility: From room ventilation to the extraction of exhaust gases, centrifugal fans cover a wide range of use cases.
Durability: These fans are generally robust and long-lasting, often operating for extended periods without the need for major repairs.
Radial fans at LTG
In addition to centrifugal fans for all types of industrial, commercial, or agricultural applications, we offer a wide range of conveying fans for transporting solid materials. We also provide reliable exhaust fans to remove harmful emissions.
High-performance centrifugal fans
LTG centrifugal fans offer outstanding aerodynamic performance, achieving high efficiency while maintaining quiet operation. Our range includes low-pressure to high-pressure fans, which can be selected to match the performance curve required at the specified operating point. In addition to standard models, we also offer customized designs that can be integrated into client-specific systems. Thanks to their robust construction, LTG fans are well suited for extreme operating conditions. Certain LTG centrifugal fans are engineered for chemically aggressive gases, and are available in ATEX-certified explosion-proof versions.
Further Information
Here you’ll find additional information related to the topic of radial fans. Centrifugal Fan
Material handling fans
LTG material handling fans are perfectly suited for transporting solid particles. They are capable of conveying fine dusts as well as long-fibered materials. Our LTG material handling fans are highly reliable and require minimal maintenance, as they are made of wear-resistant special steel and all components are robustly welded. These fans are used, among other things, in our LTG filter systems, where they efficiently transport dust and fibers in various industrial sectors.
Exhaust fans
The LTG exhaust air centrifugal fans of the NM..SO type are single-inlet centrifugal fans with direct drive and welded housings. Up to size 500, they are rotatable. The inlet and outlet connections are round and smooth up to size 280; from size 315, the inlet is flanged and the outlet rectangular. All fans are equipped with aluminum cooling fins, allowing them to handle media temperatures of up to 200 °C. A heat-resistant aluminum coating is used for surface protection.
Does LTG also manufacture custom centrifugal fans?
Yes, at LTG we are specialized in designing and manufacturing custom centrifugal fans tailored to your specific requirements. Our experienced experts offer comprehensive and personalized consulting to ensure that the fan is optimally suited to your needs and system. We support you from the planning phase to the delivery of your customized centrifugal fan. Feel free to contact us for more information — without obligation.
Centrifugal fans with ATEX certification
ATEX stands for “ATmosphères EXplosibles.” To ensure that industrial fans can be safely used in potentially explosive environments, they must obtain special ATEX certifications. These certifications are issued by independent institutions and confirm that a centrifugal fan is capable of operating in explosive atmospheres. There are various ATEX categories, depending on the application and the risk level in the respective environment. Centrifugal fans must meet at least equipment group II of the ATEX directive to be used in potentially explosive zones. Are you looking for centrifugal fans for use in explosion-prone areas? We would be happy to advise you in detail and without obligation.