1. Highly Efficient, Thorough, and Penetrative

   · Cavitation Effect: Ultrasonic waves generate tens of thousands of tiny bubbles (cavitation bubbles) in the cleaning liquid. When these bubbles instantly collapse, they produce localized high temperatures, high pressures, and strong shock waves. This energy can penetrate the finest crevices, holes, and recesses of the object being cleaned—areas inaccessible to traditional methods—achieving comprehensive, dead-angle-free cleaning.

   · Particularly suitable for precision parts with complex structures, blind holes, fine holes, and threads.

2. High Consistency in Cleaning Results

   · Since the cleaning process is uniformly driven by ultrasonic energy, as long as the workpiece is submerged in the cleaning liquid, all surfaces receive fundamentally the same energy and cleaning intensity, ensuring a high degree of cleanliness consistency across all parts and all areas during batch cleaning.

3. Non-Contact Cleaning, Protecting Workpieces

   · The cleaning force originates from the vibration of liquid molecules and cavitation shock, avoiding physical friction with the workpiece. Therefore, it can effectively clean highly delicate, soft, or brittle items (such as precision optical lenses, silicon wafers, precious jewelry, historical artifacts, etc.), preventing surface scratches.

4. Capable of Cleaning Various Contaminants

   · By pairing with different cleaning agents (water-based, solvent-based), it can effectively remove various types of soil, including:

     · Greases, oils (cutting fluids, rust-preventive oils, etc.)

     · Dust, particulate matter

     · Polishing paste, metal shavings

     · Fingerprints, oxides

     · Biological contaminants (in combination with enzyme cleaning agents)

5. Eco-Friendly and Energy-Saving

   · Compared to high-pressure spraying or immersion in large volumes of chemical solvents, ultrasonic cleaning typically uses less cleaning agent and energy and allows for the recycling and filtration of the cleaning liquid, reducing waste discharge.

   · Workpieces are easier to rinse and dry after cleaning, further saving water resources and time.

6. Simple Operation, Integrates Automation

   · Once parameters like time, temperature, and power are set, the process runs fully automatically, reducing manual operation and labor intensity.

   · Easily integrated into automated production lines to achieve full process automation, including loading, cleaning, and drying.

Principle-Based Features

1. Adjustable Frequency to Meet Different Needs

   · Low Frequency (e.g., 20-30kHz): Cavitation bubbles are large, explosion force is strong, suitable for cleaning heavy oil, large particles, and structurally robust workpieces (e.g., metal mechanical parts).

   · High Frequency (e.g., 40kHz and above, even 80kHz, 120kHz): Cavitation bubbles are small and dense, explosion force is gentle, and penetration is stronger, suitable for cleaning precision and ultra-precision workpieces (e.g., semiconductors, LCD screens, miniature bearings), reducing surface cavitation erosion.

   · Multi-frequency or Sweep Frequency: Advanced equipment can switch or sweep frequencies to avoid cleaning dead spots caused by standing waves.

2. Diversified Cleaning Media

   · Not limited to water; deionized water, alcohol, acetone, hydrocarbon solvents, specialized water-based cleaning agents, etc., can be selected as the medium based on the nature of the soil.

Limitations (Points Requiring Attention)

1. Not Suitable for All Materials

   · May cause "cavitation corrosion" on certain materials, where tiny pinholes appear on the surface (especially under prolonged, high-power use). Must be used cautiously or avoided for soft materials (e.g., certain rubbers, soft plastics), coated surfaces, and natural gemstones (e.g., pearls, opals, cracked jade).

2. Requirements for Workpiece Placement

   · Workpieces cannot be placed directly on the bottom of the cleaning tank; a cleaning basket or suspension must be used to ensure uniform transmission of ultrasonic waves. Workpieces should also not be tightly overlapped, as this shields the ultrasonic waves.

3. Higher Initial Investment

   · The purchase cost of a reliable ultrasonic cleaning machine, especially industrial models with heating, filtering, and automation functions, is higher than that of ordinary cleaning tanks or spray equipment.

4. Requires Maintenance

   · The cleaning solution needs regular replacement or filtration to maintain its cleanliness and effectiveness. Transducers may also require maintenance due to scaling or corrosion.

Main Application Fields

· Industrial Manufacturing: Automotive parts, aerospace components, precision machinery, hydraulic and pneumatic components.

· Electronics and Electroacoustics: Printed circuit boards (PCB), semiconductor silicon wafers, connectors, miniature motors.

· Medical Devices: Surgical instruments, dental tools, laboratory glassware (this is one of its earliest and most important applications).

· Jewelry and Watchmaking: Fine jewelry, watch movements, precious metal ornaments.

· Optics and Optoelectronics: Optical lenses, LCD panels, camera modules.

· Others: Printer nozzles, coin collecting, cultural relic restoration, laboratory equipment, etc.

Summary

The core characteristic of ultrasonic cleaning is its ability to use cavitation to achieve non-contact, highly efficient, and uniform cleaning of complex, precision workpieces. It is an indispensable, advanced cleaning technology in many fields demanding high cleanliness, but its effectiveness relies on carefully selecting equipment parameters and processes based on workpiece material, soil type, and cleanliness standards.