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VietSonic Handheld Ultrasonic Welder – Fast, Durable & Affordable Spot Welding for Fabrics & Labels

1. General Introduction

The VietSonic handheld ultrasonic welder utilizes modern high-frequency ultrasonic technology (28/30 kHz) to bond materials such as fabrics, labels, and clothing tags without the need for glue or stitching. The process is rapid, resulting in flat, sharp, and durable welds.

2. Working Principle

  • Ultrasonic waves are amplified into mechanical vibrations via the sonotrode.
  • Upon contact, these vibrations generate friction and localized heat.
  • Thermoplastic materials (synthetic fabrics) melt at the contact point and solidify, instantly bonding the layers together firmly.

3. Outstanding Advantages

Advantage Details
Fast – Compact – Clean Welds in seconds, no glue required, no burrs or flash.
Versatile Power 400–1000 W, compatible with appropriate sonotrodes for spot welding labels, tags, and branding.
Compact Size Weighs approx. 5 kg, easy to manipulate on assembly lines or in workshops.
Chemical-Free Compatible with PP, PE, ABS materials.
Operational Mode Safe, eco-friendly, reduces consumable costs.

4. Specialized Applications

  • Label/Tag Welding: Saves time and increases the durability of multi-layer fabric welds simultaneously.
  • Fabric Spot Welding: Used for fixing collars, hems, display garments, curtains, etc.
  • Garment Accessory Welding: Production of non-woven items, protective gear, and technical textile products.

5. Technical Specifications

  • Frequency: 28 – 30 kHz
  • Power: 400 / 800 / 1000 W
  • Power Supply: 220 V – 50/60 Hz
  • Weight: ~5 kg
  • Dimensions: ~400×195×300 mm
  • Sonotrode (Welding Horn): Customized upon request (small for labels, large for linings or multi-layers).

6. Why Choose VietSonic?

  • 100% Localized: From design to manufacturing, ensuring convenient maintenance and competitive costs.
  • Top Experts: Developed by Assoc. Prof. Dr. Nguyen Thanh Hai – HCM City University of Technology (HCMUT).
  • Full Technical Support: Consultation on sonotrode selection, machine integration, operation training, and periodic maintenance.
  • Serving Diverse Industries: Garment, textile, accessories, cosmetics, medical, electronics, packaging, etc.

7. Application Demo Video

Below is a demo video of the VietSonic welder in action:

8. Conclusion

The VietSonic handheld ultrasonic welder is the optimal solution for garment workshops, brands, and household goods manufacturers needing high-quality, compact, clean, and safe welding for fabrics and labels. Contact us: