Can 100kHz Ultrasonic Spray Technology Improve Your Coating Uniformity?

Can 100kHz Ultrasonic Spray Technology Improve Your Coating Uniformity?

A 100kHz ultrasonic atomization spraying system is a high-precision coating system that uses high-frequency ultrasonic vibration to atomize liquid materials (such as coatings, solutions, and functional slurries) into micron- or even submicron-sized particles and uniformly spray them onto the substrate surface.

Compared to traditional spraying methods (such as pneumatic spraying or pressure spraying), 100kHz high-frequency atomization offers finer droplet sizes, more uniform distribution, and less material waste, making it widely used in high-end manufacturing and precision coating fields.

Its core principle is based on Ultrasonic Atomization technology: high-frequency vibration creates standing waves on the liquid surface, causing the liquid to naturally break down into uniform microdroplets under low-energy conditions.

 

The 100kHz ultrasonic atomization spraying equipment mainly consists of the following parts:

Ultrasonic generator (provides high-frequency electrical energy)

Ultrasonic transducer (converts electrical energy into mechanical vibration)

Atomizing nozzle (core atomization area)

Infusion system (controlling fluid flow)

Airflow assist system (optional, for spray guidance)

When the liquid is delivered to the surface of the atomizing head, the high-frequency 100kHz vibration will create tiny ripples in the liquid film, eventually breaking the liquid down into micron-sized droplets and forming a stable spray.

Advantages of 100kHz frequency

Compared to low-frequency ultrasound (20kHz–60kHz), 100kHz falls within the high-frequency precision atomization range, offering the following significant advantages:

1. Finer atomized particles

It can form smaller droplets, resulting in a more uniform and dense sprayed surface.

2. Higher coating uniformity

Suitable for high-precision applications such as nano-coatings and functional thin films.

3. Lower material waste

With virtually no splashing or bounce, material utilization is improved.

4. Lower thermal impact

Suitable for heat-sensitive materials (biological solutions, electronic materials, etc.).

5. More controllable coating thickness

It is easy to achieve micron- or even nano-scale coating control.

Equipment technical features

100kHz ultrasonic atomization spraying equipment typically possesses the following technical characteristics:

High-frequency stable output (100kHz ± stable control)

The atomized particle size is controllable (typically in the range of 1–20 μm).

Programmable spray coating control system

Low-clogging atomizing nozzle design

Supports continuous/intermittent spraying modes

Compatible with various liquid viscosities and concentrations

100kHz ultrasonic atomizing spraying equipment, with its high precision, low loss, and excellent uniformity, is gradually replacing traditional spraying methods and becoming an important process equipment in high-end manufacturing. Its application value is rapidly increasing, especially in the electronics, new energy, and biomedicine fields.