Stirring using air involves a constant bubbling of the liquid in each vat in which it is installed. It is made up of two essential parts: the suppressor that generates the air for the whole line, and the diffusers that distribute the air to each vat.

Loads can be mechanically agitated at the heart of the liquid using a moving structure, which is made to move from side to side by means of an activating device connected to it. It may be horizontal, vertical or circular.

The vibration causes agitation movement that helps the penetration of the liquid into all the parts of the piece. It is especially recommended for small holes and cavities.