What is a tangential blower?

Tangential blowers consist of cylindrical impellers with blades arranged parallel to the axis of rotation. The air flows through the impeller twice in a centrifugal pattern: first from the outside to the inside and then from the inside to the outside. This double flow ensures wide, even air distribution and makes them ideal for applications with flat exposure.

The airflow: How air is moved

Tangential blowers, on the other hand, use a double radial flow through the cylindrical impeller, enabling even air distribution over a wide area. They are ideal for large area applications with high air volume and low-pressure requirements, such as in air curtains or underfloor convectors. Tangential blowers are less noisy than other alternatives, although they have a lower efficiency compared to other designs.

• Uniform air distribution across the entire width: The wide discharge area distributes the air evenly across the area that has to be ventilated. This is particularly advantageous in applications such as underfloor convectors or air curtains, where homogeneous air duct design is crucial.
• Low noise level even at high airflow: The special flow control and the double flow through the impeller enable quiet operation, even with large air volumes. This makes tangential blowers ideal for noise-sensitive environments such as living spaces or medical equipment.
• Flat design for compact installation situations: Thanks to their low height, tangential blowers can be easily integrated into flat housings or tight installation spaces. This is especially relevant for devices with limited space, such as wood-burning stoves or storage heaters.
• Stable characteristic curve with low pressure increase: The pressure increase is uniform and low in intensity, resulting in a stable characteristic curve. This allows the fans to be easily integrated into systems with constant airflow requirements

• Moisture-proof versions for refrigeration technology: Special versions with protection against condensation and moisture are available for humid or cooled environments. These are suitable for applications such as bottle coolers or freezers.
• Flexible Speed control via PWM or 0–10 V analog signal: The speed can be precisely controlled, allowing the airflow to be optimally adapted to the respective requirements. This increases energy efficiency and enables demand-based closed-loop control.
• EC motors enable higher speeds and automatic adjustment: Electronically commutated motors offer higher speeds than conventional AC motors, and automatically adjust to the respective operating point. This ensures optimum performance with minimum energy consumption.