In many industrial processes some products must be cleaned, dried, wiped-off, dusted, cooled or simply moved to another side of a conveyor. Compressed air is often used to perform such operations but it is relatively expensive and creates excessive noise in most cases. Recent developments in flow dynamics now allow to reduce air consumption and noise level and to improve process efficiency. This is obtained by means of air nozzles with a streamlined outside surface that allows a small jet of high pressure air to drag in a bigger volume of surrounding air.
The resulting air stream has a lower speed and a higher mass: the impact efficiency is preserved, whereas both sound level and air consumption drop dramatically.