What are the advantages of using the Newland Electric Atomiser for coating? The droplets produced by the rotary atomisation method are of such a well-defined size, ie., the distribution of droplet diameters is so narrow (much better than with any other spray method), that a very even coating can be achieved, ie., the liquid very evenly distributed.

Because the Atomiser does not need a pump on its input, a reservoir above the unit being sufficient, little extra equipment is needed to complete the spraying operation so the Newland Electric Atomiser can be a very cost-effective system.

The lack of need for pressure or compressed air, and the low momentum of the spray cloud, also means there is minimal foaming of the input liquid.

What about the spray pattern? The Newland Electric Atomiser is not a directional spray. In most situations it produces a 360° -all-round spray, roughly toroidal in shape. When operating at low flow rates and at high speed however, the spray cloud is too diffuse to be defined; and at higher flow rates and at low speed, the droplets are larger and fall under gravity, giving a hollow parabola.

In spraying with oils and other low-surface-tension liquids, where the droplets are too small to fall under gravity, the Atomiser must be mounted roughly parallel to the target (so the droplets hit the target side-on) - the Atomiser being mounted either roughly vertical or roughly horizontal as necessary. In this geometry about half the spray cloud is un-used; if required a screen can be erected to condense and perhaps recycle the unused liquid.

When the droplets are large enough to fall under gravity (generally with aqueous input liquids), the Atomiser can be mounted above the target.

When running the Atomiser at slow speeds, the unit generates very little suction, and some pressure head on the input might be required to achieve a sufficiently high flow-rate.

Our application is in the food industry - what about hygiene? The Atomiser is manufactured from stainless steel and polypropylene (see 2.4. of the Technical Data - "Wetted Parts") - both unreactive materials. The internal volume has been designed to be a minimum, and if the input liquid is shut off at the same time at the Atomiser (eg.by a solenoid valve close to the Atomiser) then the de-celeration of the Atomiser is usually sufficient to expel the remaining liquid. To keep the Spray Head clean, it is recommended that a spare is kept soaked in biocide when out of use.