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Images of Martignani-KWH fluorescent dye electrostatic mist blowing (200 l/ha) show impressive
coverage. |
Images of Air Blast fluorescent dye high volume spraying (1500 l/ha) show big droplets
(runoff) and uneven coverage. |
Electrostatic Mist Blower vs. Air Blast Sprayer
Replying to many questions, here are the most important differences concerning how air is used by the “Martignani-KWH” Mist Blowers and the traditional Air Blast Sprayers
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All the air sucked in by the dual intake blower is used |
Only 2/3rds of the axial fan produces air: 1/3rd of the fan is not used although it requires power |
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Uniform airflow on all of the outlet section and perfectly directed air stream |
The air turns around the impeller shaft, causing turbulence and non-uniform air stream at the outlet (the stream in mainly upwards on one side and downwards on the
other) |
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The special streamlined design of the spray-heads directs the air almost with no loss of power |
The air must suddenly turn through 90° causing a loss of speed and power of 20% |
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A continuous air stream of high speed and penetrative power, but without violence and turbulence |
Heavy turbulence in the air stream causing great loss of speed and power |
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The two outlets can be turned through 90°, thus for every shape of the tree the air stream can be directed individually to the most important parts of the tree |
No adjustment or adaptation to the tree shape possible |
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Both heads can be directed in one direction: this doubles penetration so that perfect coverage is possible also under windy conditions |
When working one-sided, the liquid output on one side must be
closed, the air capacity of this side will remain unused though power is absorbed |
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Straight flow air stream and the absence of turbulence gives a high output. Add to this the advantages of the many adjustments possible for single and double-sided spraying – the K.W.H. B 612 can be considered as using 100% of the power required |
It has a loss of power of 20% and 33% (see points 1, 2, 3) leaving only less than 50% which on the other hand is used inefficiently |
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DOUBLE AIR ACTION: uniform droplet production and transport of liquid
(PNEUMATIC SYSTEM) |
SINGLE AIR ACTION: only transport of the liquid divided into droplets of different size by the pressure nozzles
(AIR-CONVEYANCE) |