© Gernot Walter

“The optimal solu­tion for every oper­ating point”

AxiForce, AxiFlow, and DiaForce make up ebm-papst’s new compact fan family. Chris­tian Stern, Senior Product Manager, explains the strengths of each model and why this approach is better than relying on a one-size-fits-all solu­tion.


Mr. Stern, why is ebm-papst launching an entire family of compact fans?

Because no two appli­ca­tions are alike. Our customers have very different require­ments for compact fans – some models deliver high static pres­sure and others provide the highest possible airflow while remaining excep­tion­ally quiet. There is no single product that can do all of these things equally well. That’s why we’ve devel­oped three fan solu­tions, each with its own special­ized design. Depending on the appli­ca­tion, they offer the optimal combi­na­tion of airflow, effi­ciency, and reli­a­bility.

5-10 dB(A)

quieter than conven­tional two-stage units, depending on the instal­la­tion

Up to

0 Rpm

Up to

0 Pa

maximum static pres­sure

BG20

one motor for four compact fans

What do the three models–AxiForce, AxiFlow, and DiaForce–have in common, and how do they differ?

AxiForce 40, AxiForce 60, AxiFlow 60, and DiaForce 40 are all based on the same, newly devel­oped BG20 motor. However, they differ in their aero­dy­namic design – which depends on the specific customer require­ments. AxiForce is designed for appli­ca­tions with higher back pres­sure and offers maximum effi­ciency combined with opti­mized noise perfor­mance. AxiFlow pursues the same goal but is specif­i­cally opti­mized for appli­ca­tions with lower back pres­sure and higher airflow. DiaForce delivers a combi­na­tion of effi­ciency, power density, and an excep­tion­ally low noise level – making it suit­able for demanding, high-pres­sure appli­ca­tions.

For which appli­ca­tions were the Force and Flow vari­ants devel­oped?

In general, both vari­ants are suit­able for a wide range of appli­ca­tions with high demands on airflow, effi­ciency, and reli­a­bility: from indus­trial appli­ca­tions and data centers to photo­voltaic and battery storage systems, as well as charging infra­struc­ture, medical tech­nology, refrig­er­ated display cases, and displays. In the IP68 version or with ATEX certi­fi­ca­tion, they are also ideally suited for outdoor use.

We’ve devel­oped three fan solu­tions, each with its own special­ized design. Depending on the appli­ca­tion, they offer the optimal combi­na­tion of airflow, effi­ciency, and reli­a­bility.

Chris­tian Stern, Senior Product Manager

DiaForce plays a special role within the family. What makes it so special?

DiaForce was devel­oped specif­i­cally for appli­ca­tions with very high pres­sure require­ments, such as in data centers. Its unique selling point is its aero­dy­namic design in a single-stage config­u­ra­tion. While compa­rable solu­tions often use two counter-rotating fan stages, DiaForce achieves the required pres­sure output with just one stage. This improves effi­ciency and reduces noise: Unpleasant, high-frequency noise compo­nents are mini­mized, and even at high power levels and in high-pres­sure appli­ca­tions, it produces a signif­i­cantly more pleasant sound profile. This is a crucial advan­tage, espe­cially in data centers with a large number of contin­u­ously running fans. In these envi­ron­ments, reli­able cooling, every decibel, and every gain in effi­ciency count.

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Compact fans

Highly efficient axial, radial or diagonal compact fans