It is well-known that water is the carrier to effectively distribute agricultural chemicals to obtain complete and targeted coverage.
Reducing the liquid to small droplets can obtain a uniform distribution of small quantities of chemicals over wide areas of vegetation.
Traditional sprayers often use diaphragm or piston pumps to obtain high water pressure to distribute through one or more small diameter holes. The use of a fan permits the ‘hold up’ of the water droplets while assisting the distribution of the chemicals – conventionally called high volume spraying.
The Cima pneumatic low volume venturi sprayers use a system based on the venturi tube. A centrifugal fan generates an intense air flow that passes over the venturi tube and exits through an adequate throat. The water is introduced, without pressure, into the throat of the venturi and is sheared into extremely fine and uniform particles. The application of this principal is the essential and binding condition for the construction of pneumatic sprayers.
The difference of the particle size is extremely important. At equal volumes of water used, it allows the pneumatic sprayers to do a distribution significantly larger than the traditional sprayers. Cima pneumatic sprayers cover the same area of vegetation treated as the high-volume sprayers but with much less water.
“Run off is almost completely eliminated, but coverage is massively increased,” said Andrew Holbrow at ArborAgri. “Using much less water is not only environmentally beneficial but can also lead to big cost and time savings for growers.”
Venturi heads are available in many configurations for different crops and alongside a tank capacity up to 2,000 litres, there is a narrow 1,000 litre tank available.