Low drift and documentation

When small drops can also be controlled - proven in practice

Drift is a matter of control – not just droplet size

Drift is often directly associated with small droplets. In practice, the picture is more nuanced. With Danfoil's air-assisted spray technology, the droplets are given energy and speed, making it possible to work with fine droplets while maintaining controllability.

The point is that the movement of the droplets is not only determined by their size, but also by the momentum they have when they leave the atomizer.

Why air assistance reduces drift

  • Higher droplet velocity – the droplets reach their target faster and are less affected by crosswinds.
  • Directional airflow – helps the droplets down towards the crop.
  • Stable droplet formation – the droplet spectrum is controlled by air pressure and is less sensitive to pressure variations in the liquid.
  • Low boom height – the combination of air and correct boom height reduces the drop height and thus the risk of drift.

Important: Low drift is not achieved by "as much air as possible," but by the correct air pressure for the task . Too high air pressure can increase turbulence and counteract the effect.

Documented drift reduction

Danfoil's spray technology has been tested under controlled conditions. In 2009, Danfoil achieved a 75% drift reduction approval from the German Julius Kühn Institute (JKI).

The approval documents that air-assisted spraying with Danfoil can significantly reduce wind drift compared to conventional spraying systems—even when using relatively fine droplets.

Drift in practice – not just in the laboratory

Documentation is important, but drift is also managed in daily operations. With Danfoil, the operator has several tools at their disposal to adjust spraying:

  1. Air pressure – fine-tuned according to crop and wind conditions.
  2. Boom height – kept low without compromising coverage.
  3. Driving speed – adjusted so that airflow and droplet trajectory remain stable.
  4. Visual control – the crop should move slightly, not be "laid down."

The combination of these parameters makes it possible to work safely – even in conditions where conventional sprayers often have to give up or switch to coarser nozzles.

Conclusion

Low drift with Danfoil is not about avoiding small droplets, but about controlling them correctly. Air assistance enables both effective application and documented reduction of wind drift – when the system is set up correctly.