MICRONAIR AU8500 ULV TREE SPRAYER
1. INTRODUCTION
The Micronair AU8500 is a tractor-mounted airblast sprayer developed specifically
for the control of pests in tall trees using products formulated for Ultra Low Volume
(ULV) application. The machine is intended to be used as a ground-based
alternative to aerial application in date palms, tropical fruit trees, forestry etc. The
sprayer can also be used for broadcast application of ULV pesticides against migrant
pests (locust, armyworm etc).
The AU8500 uses a Micronair rotary atomiser to give excellent control of spray
droplet size over a wide range of flow rates. Spray droplets are carried upwards into
the tree canopy by the air blast from a highly efficient tangential flow fan driven from
the Power Take-Off (PTO) shaft of the tractor. The fan is provided with a two-speed
gearbox to match the fan speed and air output to the tractor being used. This allows
the sprayer to work both with small tractors (32 – 75 HP) and larger types (75 HP
and above) for maximum vertical coverage.
The atomiser is mounted at the outlet of a flexible air duct. This is normally directed
vertically for optimum coverage of tall trees. However, the angle of the duct can be
adjusted for spray application onto smaller trees or bushes or for the control of
migrant pests at ground level. The air duct can also be moved to the horizontal
position for transport or when driving under obstructions.
The pesticide tank and all pipework and components in contact with the spray liquid
are manufactured from materials that are resistant to aggressive solvent-based ULV
formulations. The tank has a wide aperture for ease of filling and a drain valve for
easy and safe emptying after use. The sprayer incorporates an additional flushing
tank to allow the pipework, pump and atomiser to be safely washed out with a non-
toxic solvent after use.
The sprayer is operated from a control box inside the tractor cab (where available)
for maximum operator safety. The machine incorporates many unique safety
features, including an air flow sensor to stop the pesticide pump in the event of the
PTO drive being disengaged during operation.
2. SPECIFICATION
Dimensions: Main
frame:
Length 1380 mm, width 1100 mm, height 1200 mm
(excluding air duct and atomiser)
Air duct and atomiser:
Height 1500 mm above top of frame.
Atomiser height:
3.2 mm above vehicle ground level (on tractor with category
2 linkage at typical operating height)
Weight:
360 Kg (tanks empty)
Mounting:
ISO standard category 2 3-point linkage
Drive:
From tractor PTO shaft operating at 500 – 540 RPM
Summary of Contents for AU8500
Page 1: ...AU8500 ULV TREE SPRAYER Operator s Handbook and Parts Catalogue...
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