The vertical electrostatic oiler, with its unique nozzle oil mist atomization method and precise controllability, achieves a uniform oil coating of 2mg/m², widely applied in the tinplate/tin-coated plate, galvanized, chromium-plated, and aluminum-plated plates, aluminum plates and foils, steel plates, and automotive panel industries. So, what is its working principle?
　　OiTech answers for you: The nozzle system extracts oil from the storage tank and atomizes it into micron-sized (one millionth of a meter) fine particles within the atomization chamber. All large-sized oil droplets collide with the chamber wall and drip down along it, being recycled back to the storage tank. The consistent air pressure within the nozzle produces a quantitative oil mist, filling the atomization chamber with a uniform oil mist. The generated oil mist is approximately 100 times more than what is needed to meet the maximum working conditions. Controlled airflow enters the atomization chamber from the plenum chamber, pushing the oil mist through the heavy-oil mist baffle. The heavy-oil mist baffle can block larger particles. The oil mist then enters the electrostatic charging section, where the corona discharge area generated by the ionization wire charges the oil mist particles negatively. After passing through the ionization chamber, the negatively charged high-voltage plate drives the negatively charged oil mist particles towards the surface of the moving strip steel. Since the strip steel is grounded, the charged oil mist particles are simultaneously adsorbed onto the strip steel body. Due to maintaining a constant oil mist generation, the amount of oil mist applied to the strip steel is closely related to the air flow rate introduced into the machine by the flow control system. When the production line speed or strip steel width changes, the flow rate of the controlled airflow is automatically adjusted to maintain the selected oil application rate value. The design of the ion generator and negative high-voltage plate is to ensure that all oil mist passing through the ionization chamber is ultimately applied to the strip steel.

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