Ultrasonic Nylon Film Welding on Automatic Bag Machines – Optimal Solution from VietSonic
Discover VietSonic’s ultrasonic nylon film welding technology on automatic non-woven bag machines – a clean, fast, and durable manufacturing solution that requires no threads or adhesives, ideal for medical, fashion, and industrial sectors.

Ultrasonic Nylon Film Welding on Automatic Bag Machines – Optimal Solution from VietSonic

1. Introduction to Intelligent Automation

VietSonic provides automatic ultrasonic welding machines integrated into non-woven bag production lines. This system combines lifting, positioning, and continuous welding, delivering high productivity and precision without the need for threads or adhesives.

2. Ultrasonic Technology Principle

The machine utilizes high-frequency ultrasonic waves (20–40 kHz), transmitted through a sonotrode/horn to act upon the nylon film and PP/PE fabric layers. The intense vibration creates frictional heat, melting the interface to form a seamless bond – smoke-free and glue-free.

3. Key Advantages

     

  • Threadless & Glue-free: A clean, eco-friendly process that reduces consumable material costs.

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  • High Speed: Capable of up to 60 bags/minute, suitable for all bag sizes, significantly saving labor costs.

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  • Durable & Aesthetic Seams: Tear-resistant bonds that enhance the product’s aesthetic appeal and quality.

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  • Dust & Smoke Free: Ideal for production in clean environments such as medical and food packaging sectors.

4. Technical Specifications

Parameter Value
Fabric Width Up to 1.6 m
Fabric Weight (GSM) 40–120 g/m²
Production Speed Up to 60 bags/minute
Ultrasonic Frequency 20 kHz, Power 2,000 W
Auxiliary Heating 60–120 °C
Voltage 220 V
Machine Dimensions 2.2 × 1.4 × 7 m, Weight ~2,000 kg

5. Flexible Configurations

     

  • Benchtop/Desktop Unit: Suitable for R&D and small-scale production.

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  • Industrial System: Features continuous welding, cutting, and ultrasonic sealing modes; options for PLC, servo motors, sensors, and bag counters.

6. Comparison with Traditional Methods

Criteria Manual Sewing / Gluing VietSonic Ultrasonic Welding
Consumables (Thread/Glue) Required None
Seam Quality Uneven, prone to unraveling Aesthetic, robust, dust-free
Production Speed Low to Medium High (60 bags/min)
Cleanroom Suitability Low High
Operating Cost Medium to High Lower

7. Diverse Applications

     

  • Promotional & Shopping Bags: Durable, attractive, and environmentally friendly.

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  • Medical & Cleanroom Bags: Fast, clean, and compliant with GMP standards.

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  • Industrial Packaging & Fashion: Supports drawstrings, pre-printed handles, and specialized decorative edging.

8. Easy Integration into Production Lines

Designed for PLC compatibility and Modbus standards, the system easily integrates with conveyors, vision cameras, and robots, facilitating complete automation.

9. Technical Support & Certification

     

  • Free sample testing with photos/videos provided.

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  • Clean production process, meeting environmental standards.

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  • 12-month warranty, spare parts available in Vietnam, with both remote and on-site technical support.

10. Real-World Application Video

     

  • Fully automated operation.

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  • Results in beautiful, fast, and contamination-free weld lines.

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  • Machine can integrate additional cutting and ultrasonic edging based on requirements.

Conclusion

The automatic ultrasonic nylon film welding machine from VietSonic is the premier solution for high-end non-woven bag production: Clean – Fast – Durable. It is perfectly suited for medical, fashion, commercial, and industrial manufacturing, helping businesses save costs, improve quality, and meet strict environmental requirements.
📞 For in-depth consultation, live demos, or a quotation, contact VietSonic via: