Ultrasonic Welding of Aluminum Laminated Films on Multi-Function Vertical Machines
Discover VietSonic’s ultrasonic welding technology for aluminum laminated films using multi-function vertical machines – creating airtight, durable seals suitable for technical and pharmaceutical packaging.

Ultrasonic Welding of Aluminum Laminated Films on Multi-Function Vertical Machines | VietSonic

General Introduction

Ultrasonic welding of aluminum laminated films is an advanced technology widely applied in the production of moisture-resistant packaging, desiccant bags, and food preservation pouches. VietSonic‘s video demonstrates this technique on a multi-function vertical welding machine, showcasing continuous welding capabilities with high efficiency.

Key Technical Specifications

  • Operating Frequency: 20 kHz
  • Power Output: 1 500 – 2 000 W (depending on model and mold layout)
  • Welding Horn (Sonotrode): Made of Aluminum or Titanium, customized to the radius and shape of the weld line.
  • Sealing Capability: Airtight (hermetic), watertight, continuous sealing with extended weld length.

These specifications ensure durable, leak-proof seals capable of withstanding humid environments.

Practical Application Process

  1. Preparation of Aluminum Laminated Films:
    Multi-layer materials (PE/PA/Alu…) must be aligned and stabilized before welding to ensure uniformity.
  2. Machine and Mold Setup:
    • Adjust the ultrasonic sonotrode and the Aluminum/Titanium anvil to match the film thickness.
    • Set parameters: Frequency at 20 kHz, Power between 1500 – 2000 W.
  3. Test Run & Inspection:
    Perform a trial weld of approximately 10–20 cm to check for airtightness, aesthetics, and tensile strength.
  4. Continuous Welding Operation:
    The video illustrates the process of welding complex films with high stability, resulting in smooth, seamless seams without tearing, leakage, or thermal distortion common in traditional heat sealing.

Tangible Benefits

  • High Speed & Increased Output: Continuous welding capability meets the demands of automated production lines.
  • High-Quality Seals: Hermetic and watertight sealing ensures products remain free from moisture or microbial contamination.
  • Energy Efficiency: Eliminates the need to heat the entire mold, significantly reducing power consumption.
  • Wide Application Range: Desiccant bags, pharmaceutical/food packaging, and technical films.

Conclusion

The ultrasonic welding technology for aluminum laminated films on VietSonic‘s multi-function vertical machine (20 kHz, ~1500–2000 W power) is an effective solution for industries requiring high packaging quality, especially in humid environments. The welds achieve absolute sealing, high speed, and energy efficiency — making it highly suitable for large-scale production.

If you need further consultation on machine models, mold patterns, or practical applications, do not hesitate to contact VietSonic for pricing, technical demos, and on-site support.