PTS 2000

This is a rear view of a Tornado PTS2000 Lt trailing sprayer fitted with a 36"axial fan and upper and lower single sided air conveyors or volutes.
It is operating in a macadamia orchard where the trees at approx. 7-8mtrs tall.
The fan system is so efficient that it is operating at below standard PTO speed, at medium fan pitch and in 1st gear of the two speed fan gearbox.
Note the under tree conveyor where the air is directed and separated from the main air stream of the axial fan. This directed air is forced upward into the base of the tree canopy and in particular on the opposite side of where the unit is spraying.

This action of increased air speed allows a 'venturi effect' to take place allowing air coming from the outside of the tree to be forced inward for greater spray coverage.
The top conveyor is manually adjustable so as to attain the correct angle of air discharge to suit tree habit and shape.
There is the option of hydraulic tilt fitted to this unit where both conveyors which are bolted to the sprayer conveying ring can be adjusted for sloping terrain.

This is another view of the Tornado PTS Model sprayer fitted with upper and lower conveyors or volutes.
The tree sizes in this photo are approx. 5-6mtrs in height.
Because of the efficient air production of the Ciclone fans, where high volume and medium to low density is achieved, greater travel speeds are attainable.
These fans have large central hubs manufactured from die cast aluminium and have the largest centrifugal clutches. The fan blades are also manufactured from aluminium are large in their depth to produce vast quantities of air.

This view is taken of the discharge area of the adjustable top conveyor or volute.The air in this area discharges at a higher velocity compared to lower down the conveyor. This is brought about due to the fact that the target to be sprayed is usually at the greatest distance.
Further down the top conveyor, air speed reduces accordingly as the target areas distance is also reduced.
Sprayer calibration in the top conveyor is adjusted for output dependant on the trees height and density. This usually involves different spray nozzles discharging different spray rates.

This image shows the Tornado PTS2000 Lt sprayer with upper and lower conveyors or volutes in a macadamia orchard where trees are approx. 5-6mtrs tall with medium leaf density.
It should be noted that a larger portion of the total tree spray volume is directed at the middle and top of the tree. This is in relation to the air discharge angle and in particular where the greatest tree density is located.
Lower spray discharge rates are usually at the bottom of the sprayer as the tree density is considerably lighter.
When the bottom conveyor is fitted, the spray discharge is directed upwards and slightly outwards into the tree. The spray discharge is usually higher in this area as the air flow is accelerated to push into the middle area of the base of the tree canopy.

This is another view of the top conveyor of the Tornado PTS2000 trailing sprayer working in a macadamia orchard.
Note the large volume of spray laden air being discharged into the tree canopy.

This image shows spray laden air inside a 6mtr macadamia tree. This tree is of medium leaf density and the discharge of spray is 4lts/tree @ 3.6km/h. Tree spacing in the row is at 4mtrs.
Standard ceramic hollow cone nozzles were used for this discharge.
Air distribution in the tree was excellent with the sprayer utilising below recommended PTO speed, medium blade pitch angle and 1st gear of fan gearbox.