Electrostatic Mist Blower VS Air Blast Sprayer

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 (run off) and uneven coverage 


All the air sucked in by the dual intake blower is used 

Uniform air flow on all of the outlet section and perfectly directed air stream 

The special streamlined design of the spray-heads directs the air almost with no loss of power 

Continuous air stream of high speed and penetrative power, but without violence and turbulence 

The two outlets can be turned through 90°, thus for every shape of tree the air stream can be directed individually to the most important parts of the tree 

Both heads can be directed in one direction: this doubles penetration so that perfect coverage is possible also under windy conditions 

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 

Air Blast

Only 2/3rds of the axial fan produces air: 1/3rd of the fan is not used although it requires power 

The air turns round 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) 

The air must suddenly turn through 90° causing a loss of speed and power of 20% 

Heavy turbulence in the air stream causing great loss of speed and power 

No adjustment or adaptation to the tree shape possible 

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 

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 

DOUBLE AIR ACTION: uniform droplet production and transport of liquid

SINGLE AIR ACTION: only transport of the liquid divided into droplets of different size by the pressure nozzles