Electrostatic Spraying

What is Electrostatic Spraying?

At the heart of our air assisted electrostatic sprayer is the induction-charging nozzle, which applies charge to the atomised spray.

Air and liquid enter the atomizing nozzle under pressure. The air moves through the nozzle under pressure and meets the liquid at the nozzle tip, causing the formation of spray droplets that are 30 to 60 microns in diameter. At the tip of the nozzle is a tiny electrode which applies an electrical charge to the spray. The electrical charging causes a natural force of attraction between the spray droplets and target surface, similar to the attraction between items of clothing created by the tumbling of a clothes dryer. The attraction to the target's surfaces relates to Coulomb's Law, which states that any two charged objects will create a force on each other. The charge on the droplets, though small, pulls the spray towards the target at 75 times the force of gravity. The spray droplets can reverse direction, moving against gravity, to coat all sides of an object.

ESS takes advantage of the principal of physics to achieve better coverage and to lessen the environmental impact by allowing smaller amounts of chemicals to be used. In addition ESS uses air-assistance to help with spray delivery. Air is necessary in electrostatic spraying to create tiny droplets (30-60 microns, 900 times smaller than conventional sprayers) that can travel in the turbulent airstream into dense areas.


Sustainability is key in todays business operations. The requirement to use less water and chemicals in our environment is at the core of every business operation where the application of chemicals in any form is required. Also, water conservation is important and technology such as electrostatic spraying meets both of these requirements especially in crop spraying applications.
The reduction of chemical and water usage also has a cost impact as significantly less of both comodeties provides more rapid return on investment in electrostatic technology.
ESS spraying systems are available as mobile units powered by the latest battery technology and low noise compressors making the system more operator friendly. The units are also constructed from modular compoents that are relatively easy to maintain and replace.
The ESS electrostatic spraying system is ideal to apply new surface modification technologues that once dry are capable of providing long term microbiocidal properties to any surface. The ability of the technology to spray frequently touched surfaces even computer keyboards, televising controllers reduce the risk of cross-contamination and infection.
Because the spraying technology actively seeks out even hidden surfaces that could potentially harbour harmful microorganisms and bio-films.
  • ESS Europe Ltd.
    Bay Horse Farm
    Thorlby, Skipton
    BD23 3LL
  • T: +44 (0)1756 700965