VietSonic Ultrasonic Non-Woven Bag Production Line – Clean, Smart, and Scalable
1. Sustainable Technology for the Future
- Non-woven bags are a leading eco-friendly alternative to disposable plastic bags, favored for their reusability, biodegradability, and cost-effectiveness.
- The ultrasonic welding technique delivers precise, clean, and durable seams—without the need for glue, thread, or high heat.
- VietSonic’s machines offer a clean, fast, and cost-efficient solution for businesses of all sizes, from small workshops to industrial-scale manufacturers.
2. Working Principle – Clean and Efficient
- High-frequency ultrasonic waves (20–40 kHz) are transmitted through a specially designed sonotrode to the fabric joint.
- The vibration causes local melting of PP/PE fibers at the seam under minimal heat (approx. 60–120 °C), forming a solid, seamless bond.
- The process allows simultaneous cutting and sealing, ensuring straight edges and consistent finishes.
3. Outstanding Advantages
- No glue or thread: eco-friendly, cost-saving, and safer production
- High productivity: up to 60 bags per minute for continuous operation
- Strong welding: tear-resistant and reliable joints for durable bags
- Dust- and smoke-free: ideal for medical, food, or cleanroom applications
4. Technical Specifications
- Fabric width: up to 1.6 m
- Bag size: width 100–800 mm, length 200–650 mm
- Fabric GSM: 40–120 g/m²
- Output: up to 60 bags/min
- Ultrasonic frequency: 20 kHz, power 2000 W
- Heating assist: 60–120 °C
- Power supply: 220 V
- Machine dimensions: 2.2 × 1.4 × 7 m, weight ~2000 kg
5. Customizable Configurations
- Tabletop models: ideal for R&D, prototyping, and small-batch production
- Industrial machines: rotary horns, roll-type sonotrodes, integrated handles/drawstrings
- Optional modules: PLC control, servo motors, automated cutting, optical sensors, bag counters
6. Comparison with Traditional Methods
| Feature |
Manual Sewing / Gluing |
Ultrasonic Welding |
| Glue or thread needed |
Yes |
No |
| Seam appearance |
Irregular |
Clean & uniform |
| Production speed |
Low to medium |
High |
| Cleanroom suitability |
Low |
High |
| Operating cost |
Medium to high |
Low |
7. Versatile Applications
- Shopping and promotional bags
- Medical bags, cleanroom packaging
- Industrial packaging
- Fashionable drawstring or gusseted bags
8. Smart Automation Compatibility
- Easily integrated with SCARA robots, CNC conveyors
- Programmable logic control (PLC), Modbus-ready
- Optional photo-eye or vision systems for precise alignment and quality control
9. Support – Testing – Certification
- Free sample test: Send us your material—we’ll weld and return demo photos/videos
- Certified process: Cleanroom and eco-compliant
- After-sales service: 12-month warranty, spare parts available locally, remote and on-site technical support
10. Contact & Orders
Get in touch today for expert consultation and quotation tailored to your needs:
VietSonic is your trusted partner in delivering clean, scalable, and beautiful packaging solutions with state-of-the-art ultrasonic welding technology. From prototype to full-scale production—we stand by your side at every stage of the journey.
