
Ultrasonic
Spray Coating System
Completely replaces traditional compressed air spraying methods that waste materials. Ultrasonic technology uses high-frequency vibrations to atomize liquids into ultra-fine, uniform mists.
Vietsonic pioneers the development of industrial-grade automated spray coating systems (system-level), meeting the strict standards of the electronics, medical, and advanced materials industries.

The Revolution in Material Savings & Surface Optimization
Our system solves the toughest challenges in high-precision industrial surface coating.
Eliminate Overspray
Low-velocity mist particles adhere directly to the target instead of floating into the environment. Save up to 80% on expensive chemicals.
Uniform Coating Thickness
Precisely control coating thickness at the micrometer or nanometer level, leaving no streaks, drips, or air bubbles on the product surface.
Non-Clogging Nozzle
Continuous ultrasonic vibrations make the nozzle self-cleaning, completely eliminating clogging when using suspensions or high-viscosity liquids.
Ultrasonic vs. Traditional Pressure Spraying
Customized Applications for Diverse Industries
Designed with a flexible modular structure, Vietsonic systems are ready to meet all specialized factory requirements.
Electronics & Semiconductors
Requires extremely precise thin-film coating on components, circuit boards, and semiconductor wafers — where traditional methods completely fail to meet the required resolution.
- Flux Spraying — Precise pattern coating on each SMT solder pad, strictly controlling flux volume.
- PCB Conformal Coating — Protective coating against moisture, chemicals, and vibration for PCBs/PCBAs to IPC-A-610 standards.
- Photoresist Spraying — Coating photo-resist, perovskite, and functional layers for photovoltaic cells.

Medical Devices
Demands absolute precision and strict sterile conditions. Vietsonic systems meet Class 10000 cleanroom standards and are biocompatible.
- Blood Collection Tubes (Vacutainer) — Uniformly and stably spray anticoagulants (EDTA, heparin) into the tubes at pL/sec flow rates.
- Cardiovascular Stents — Ultra-thin, uniform drug-eluting coating on metal stent surfaces, controlling drug release rates.
- Biomedical Dressings — Antibacterial, collagen, and stem cell material coating on medical scaffolds.

Energy & Advanced Materials
Advanced applications in R&D and manufacturing of next-generation renewable energy devices, requiring nano-level material structure control.
- Fuel Cells — Spraying catalyst ink (Pt/C) onto proton exchange membranes (PEM/MEA) with optimal uniform catalyst density.
- Anti-Reflective (AR) Coating — Coating SiO₂/TiO₂ nanoparticles onto displays, automotive glass, and industrial glass.
- Perovskite Solar Cells — Coating active perovskite and HTL/ETL layers for next-generation photovoltaic modules.


Synchronized Integrated Design (OEM/ODM) with Vietsonic
Vietsonic does not retail individual, disconnected spray nozzles. We position ourselves as a total solution partner (OEM/ODM system-level), designing the entire system synchronously.

From Consultation to Turnkey Operation
Technology Consultation
Analysis of materials, solutions, thickness requirements, and output
Layout Design
Spray chamber design, line schematic, and configuration selection
Manufacturing & Integration
Machining, assembly, and testing of each module according to specs
On-site Installation
Installation, electrical-pneumatic-fluid connections, and parameter calibration
Acceptance & Training
Trial run, FAT/SAT acceptance, operation and maintenance training

Looking for High-Precision Automated Spray Coating Solutions?
With the capability to provide comprehensive solutions — from technology consultation and spray chamber layout design to turnkey installation, Vietsonic is ready to accompany your production optimization process.
