Centrifugal fans - Import export

Radial fans or centrifugal fans are a type of fan that uses centrifugal force to create a pressure increase and a volume flow. This type consists of a fan wheel that rotates in a snail-shaped cover. The flow enters the fan through an inlet placed axially with the fan wheel shaft and motor, and is then thrown out radially with the help of the force from the fan wheel. Unlike axial fans, the motor is not in the volume flow of radial fans. To change the performance and characteristics of centrifugal fans, different designs are used on the fan wheel. The strength of the centrifugal fan is its versatility. A radial fan can be designed to transport a variety of volume flows at a wide range of pressures. At higher flows and relatively low pressures, an axial fan may be a better option. Centrifugal fans are available in single and double suction versions.

Axial fans are a type of fan that creates airflow through a fan wheel that rotates around an axis and moves the air parallel to the axis. Axial fans can also be called propeller fans and are usually delivered as a complete unit consisting of fan wheel, motor and cover. Typically axial fans are direct driven with the impeller mounted on the motor shaft. There are also other designs such as e.g. belt-driven or with shaft bearing and coupling. The axial fan’s strength is to transport large volume flows at low pressures. At higher pressures, a centrifugal fan may be a better choice. To reach higher pressures with axial fans, these can be connected in series. Usually, the efficiency of an axial fan is comparatively lower than that of a centrifugal fan. But by using guide rails, diffusers and other accessories, an axial fan can reach the same or higher efficiency. The flow of axial fans can be regulated with vane or damper or speed regulation.

Plug fans, or chamber fans as they may also be called, offer great versatility for complex system configurations. A plug fan is a centrifugal fan without a cover that is placed in an air unit. Plug fans provide highly efficient recirculation air with the advantage that they are easy to install and dismantle in units. Our many years of experience and large product range give our customers peace of mind. Development, design and manufacture of fans takes place with the highest precision and with the highest quality materials. The fans are usually delivered for assembly in another unit. Plug fans are typically used as an internal fan in an air handling system, where the fan is mounted in an air handling unit. Typical application is for internal installation in ventilation solutions. Depending on requirements, the design of a plug fan can be completely adapted to the customer’s needs. With the right dimensioning and material selection, a plug fan will work problem-free for many years.

A fan designed for material transport is often a centrifugal fan with an impeller adapted for abrasive particles in the air flow. Fans that transport different materials in the air flow are often extra robust fans, with the right material in the cover and fan wheel. Depending on the application, the fan wheels can be equipped with knives that not only beat but also cut the transported material into smaller pieces, this type of fan is called a knife fan. By developing a fan for your particular application, we ensure that the fan can perform over time – regardless of how tough the application is. With a durable design with a stable fan curve, we know that our fans for material transport can help you with your particular application. Our many years of experience and large product range give our customers peace of mind. Development, design and manufacture of fans takes place with the highest precision and with the highest quality materials.