Ultrasonic Horizontal Sealing for Desiccant Bags — Optimal Solution from VietSonic
Discover VietSonic’s ultrasonic horizontal sealing technology for desiccant bags – Strong, clean, glue-free, and high-speed seams. An optimal solution for modern packaging industries.

Ultrasonic Horizontal Sealing for Desiccant Bags — Optimal Solution from VietSonic

1. Introduction to Ultrasonic Welding Technology

Ultrasonic welding utilizes high-frequency acoustic vibrations (20–40 kHz) to generate localized heat and bond thermoplastic materials or composite films. This method delivers strong, hermetic seals without the need for consumables, ensuring a contamination-free process with high aesthetic quality.

2. Challenges in Horizontal Sealing of Desiccant Bags

Desiccant bags are typically thick and contain moisture-proofing materials, so horizontal sealing requires:

     

  • Providing sufficient energy to melt the outer layers without damaging the inner contents.

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  • Precise adjustment of pressure and time to ensure a beautiful, tight, and leak-proof seal.

3. Application Process at VietSonic

According to the video “Ultrasonic Horizontal Sealing for Desiccant Bags” by VietSonic, the system operates as follows:

     

  1. Precisely align the bag under the welding head.

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  2. Position the sonotrode (ultrasonic horn) perpendicular to the sealing line.

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  3. Adjust the frequency (typically ~35–40 kHz) and welding parameters (time or energy mode).

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  4. Execute horizontal sealing – vibrations are transmitted, creating friction and bonding the outer film layers.

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  5. Post-weld inspection to ensure high sealing integrity and zero leakage.

4. Superior Advantages of This Solution

     

  • Thin, Precise, and Clean Seams: Non-perforated (unlike heat sealing), glue-free, perfectly suited for desiccant bags requiring high hermeticity.

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  • High Speed & Automation: Meets the demands of large-volume production.

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  • Energy Optimization: Lowers operating costs, ideal for industrial desiccant bag manufacturing.

5. Why Choose VietSonic?

     

  • Manufactured in Vietnam: Reduces costs and accelerates maintenance and warranty response times.

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  • Focus on R&D: Equipment is fine-tuned specifically for desiccant bags, backed by a team of experts for technical guidance and operation training.

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  • Investment in Quality Components: Featuring high-grade sonotrodes and digital controllers for monitoring pressure, time, and energy.

6. Conclusion

VietSonic‘s ultrasonic horizontal sealing for desiccant bags is a modern, precise, and efficient solution — meeting the requirements of large-scale industrial production. If you need to optimize your moisture-proof packaging process with high quality and cost savings, contact VietSonic for advice on the right equipment and technology.

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Vietnam Ultrasonic Equipment Co., Ltd. (VietSonic)