Micronair Rotary Atomiser Range For Helicopters

Micronair Rotary Atomisers for Aerial Helicopter Application

Micronair rotary atomisers for helicopters incorporate over 30 years’ experience in the design of pesticide application equipment for agricultural aircraft. Their precise control of droplet size enable effective spray application at lower volumes, maximising productivity.

Versatile

Micronair offer a choice of wind or electrically driven atomisers specifically developed for helicopters. The AU7000 wind-driven atomiser is ideal for operations with constant and relatively high airspeeds. The AU6539 electrically driven atomiser is recommended for operations requiring a low or variable airspeed that would make it difficult to maintain the correct rotational speed with wind-driven atomisers.

Atomiser kits include boom mounting clamps with different clamps available for a wide range of round and streamline section spray booms.

In addition to atomisers developed specifically for helicopters, Micronair AU5000 atomisers can be used on helicopters operating at higher airspeeds. See the Micronair Product Selection Guide for further details and guidance.


Light weight and low power requirement

The design of Micronair atomisers focuses on light weight and low drag to minimise their effect on helicopter performance. The AU6539 uses a highly efficient electric motor to give maximum output whilst keeping the electrical power consumption within the sometimes limited capability of small agricultural helicopters. The four fan blades of the AU7000 ensure high efficiency and drag over a wide range of airspeeds.

Droplet size control

Controlled Droplet Application (CDA) is achievable on these units with their precise control of droplet size. This means that the atomisers can be set to produce larger droplet sizes for applications where drift risk is an issues.

However, where an operator requires application equipment suitable for drift spraying (for example in locust or migrant pest control) or space spraying (adulticiding for mosquitoes and flies), the unique flexibility of Micronair atomisers offers operators the ability to create smaller droplets as required.

At all rates of application the Micronair helicopter range of atomisers allows the operator to control the droplet size to a very narrow spectrum. The droplet size is varied by adjusting the rotational speed of the atomiser. This is achieved by varying the angle of the fan blades on the AU7000 or by means of an optional electronic speed controller for up to six AU6539 atomisers.

Cost effective

In an industry where time is money, the benefits of increased work rates through accurate and effective application can quickly be realised from reduced flying time.

Precise flow control and liquid shut-off

The flow to each atomiser is controlled by a variable restrictor unit (VRU).  This provides finger-tip control of the flow by the simple turn of a knob and eliminates the need to dismantle or change individual restrictor orifices.

Overall flow from the helicopter is regulated by the boom pressure in exactly the same way as a conventional spray system.

Every atomiser is supplied with a diaphragm check-valve to ensure immediate shut-off of chemical at the end of each spray run.


Downloads

AU6539 Manual (English) (PDF 1025 Kb)

AU6539 Brochure (English) (PDF 257 Kb)

Micron AU7000 Manual (English) (PDF 815 Kb)

Micronair helicopter spray equipment (Powerpoint 10716 Kb)

Micronair Aerial Product Range Brochure (English) (PDF 1419 Kb)

Boom Clamp Dimensions & Templates (PDF 337 Kb)

Public Health Catalogue Micron-IK (English) (PDF 3578 Kb)

Public Health Catalogue Micron-IK (Español) (PDF 2300 Kb)

Public Health Catalogue Micron-IK (Français) (PDF 2301 Kb)

Public Health Catalogue Micron-IK (Português) (PDF 2894 Kb)

Public Health Catalogue Micron-IK (русский) (PDF 3190 Kb)

Public Health Catalogue Micron-IK (Arabic) (PDF 7072 Kb)


Specifications

MODEL AU7000 AU6539
Drive: Wind-driven adjustable fan (4 blades) Electric Motor 
Power Requirement:  N/A 24/28 V DC @ 6 A maximum  
Weight:  1.5 kg (3.3 lb) complete with mounting bracket 2 kg (4.4 lb) complete with mounting bracket
Mounting:  By streamlined mounting clamp – specify boom size and profile when orderingBy streamlined mounting clamp – specify boom size and profile when ordering
Liquid throughput: 0–10 L/min (0–2.6 USG/min) per atomiser 0–3 L/min (0–0.8 USG/min) per atomiser  
Flow control: By variable restrictor unit By variable restrictor unit 
Chemical shut off:  By diaphragm check valve By diaphragm check valve 
Rotational speed: Adjustable by fan: 2,000–7,500 RPM max Adjustable by optional speed controller: 1,000–11,000 RPM max  
Operating airspeed: 64–160 Km/hr (40–100 MPH) Unrestricted  
Droplet size: Variable between 60–500 µm (VMD) Variable between 45–120 µm (VMD)