VietSonic Ultrasonic Welders – High-Efficiency Label & Spot Welding Solutions
Discover VietSonic’s ultrasonic welding machines – equipment for spot welding and label attachment that is fast, durable, and precise. Flexible handheld design suitable for various industries.

Ultrasonic Welders – Modern Solutions for Spot & Label Welding

1. Technology Introduction

Ultrasonic welding machines utilize high frequencies (typically 20–40 kHz) to generate mechanical vibrations, creating localized heat at the interface. This causes plastics or flexible fabrics to melt and bond rapidly. Requiring no chemicals or excessive thermal impact, the weld achieves high durability without chemical vapor exposure.

2. Applications in Spot and Label Welding

  • Spot Welding: Ideal for garment, medical, and automotive industries—welding across multiple fabric layers or thick materials.
  • Label/Tag Welding: The machine is capable of bonding clothing labels and warranty tags without damaging the label surface.

3. VietSonic Ultrasonic Welders – Key Advantages

  • Flexible handheld design, easy to manipulate in tight or small spaces.
  • Customizable frequency (28–35 kHz) and power (400–1000 W) to suit various materials.
  • Rapid welding cycle (usually within fractions of a second), precise, with no need for adhesive support.
  • Domestically manufactured, ensuring easy maintenance with dedicated technical service and guidance.

4. Technical Specifications

Parameter Description
Frequency 28–35 kHz
Power Output 400–1000 W
Power Source 220 V – 50/60 Hz
Dimensions ~400 × 195 × 300 mm
Weight Approx. 5 kg

5. Practical Applications

     

  • Medical Masks (3-4 layers): Ear loops, lint straps, and binding cords.

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  • Assembly Line Production: Connecting modules for mask body feeding – welding – inspection – packaging.

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  • Suitable for Workshops & Factories: From medium to large scale, requiring fast and efficient production.

6. Benefits of Usage

     

  • Fast & High Efficiency: Rapid welding speeds optimize production time.

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  • Durable, Glue-Free Welds: Ensures aesthetics and joint durability.

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  • Cost Saving: Eliminates adhesives, reduces energy consumption, and lowers consumable parts costs.
  • Safe & Eco-Friendly: Generates no toxic fumes, requiring no post-processing.

7. Standard Label Welding Process

     

  1. Prepare the machine; select the frequency and power suitable for the label/fabric.

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  2. Clean the sonotrode tip to ensure a beautiful and uniform weld.

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  3. Place the label on the welding position and clamp it firmly.
  4. Initiate welding for the preset time (fractions of a second).
  5. Inspect the weld – ensuring it is strong and does not peel.

8. Why Choose VietSonic?

     

  • Self-manufactured, easy maintenance – excellent after-sales service, reasonable pricing.

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  • High-level engineering team from HCMC University of Technology & international experts.
  • Successfully deployed numerous projects in medical, automotive, garment, and packaging sectors.

Conclusion

The VietSonic handheld ultrasonic welding machine is a flexible – efficient – precise solution for spot welding, label attachment, and various industrial applications. With advanced technology, high-quality domestic manufacturing, and dedicated technical support, this equipment is the top choice for enhancing productivity and product quality.

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