超音波ミシンでPP袋を高精度溶着｜VietSonicの無針縫製技術

Ultrasonic Sewing Machine – Modern Textile Welding Technology from VietSonic

1. Overview and Role

The VietSonic ultrasonic sewing machine operates at high frequency (20 kHz) with powerful output (1,500–2,000 W) and roller speeds of 0–20 m/min. It is a breakthrough compared to traditional sewing machines:

  • Needle-free & thread-free: Operates using ultrasonic waves to generate localized heat for bonding PP films, non-woven fabrics, and laminated films.
  • Seamless welds: Lint-free and highly aesthetic.

2. Advantages of Ultrasonic Technology for PP Woven Bags

  • High Efficiency: Speeds up to 20 m/min, suitable for automated production lines.
  • No Consumables: No needles, thread, or glue required—reducing operating costs.
  • Strong & Watertight Seals: Dustproof, suitable for packaging chemicals, fertilizers, and food.
  • Hygienic: Welds do not generate dust—ideal for medical and food products.

3. Applications in PP Woven Bag Sewing

PP woven material (polypropylene woven) is lightweight, reusable, and resistant to chemicals and corrosion, used for packaging:

  • Rice, grains, fertilizers, sugar, salt, plastic granules, chemical powders…
  • Ultrasonic machines weld top edges, handles, or crimped lines, ensuring high durability and aesthetics.

4. Outstanding Technical Features from VietSonic

  • Frequency: 20 kHz; Power: 1,500–2,000 W; Power Supply: 220 V/50–60 Hz; Weight approx. 100 kg.
  • Roller & Electronic Control: Precise adjustment of pressure, speed, and welding position. Some versions integrate pneumatic systems, puller tables, and safety protection.
  • Versatile: Edge welding, embossing, slit cutting, hole punching, and decorative shaping. Suitable for materials like PP, PE, non-woven, and polyester.

5. VietSonic – Your Trusted Local Partner

  • Custom Design: Patterns, dimensions, and productivity customized per order.
  • 100% Manufactured & Supported in Vietnam: Fast, low cost, available spare parts, convenient maintenance.
  • Consultation, Installation & Warranty: Experienced engineering team, 12-month equipment warranty with continuous technical support.

Conclusion

The VietSonic ultrasonic sewing machine is the optimal solution for PP woven bag production: Fast – Strong – Clean, meeting industrial packaging needs from agricultural products to chemicals and construction materials. Needle-free technology delivers superior efficiency and optimal savings by eliminating consumables.

You can watch the detailed illustration in the following video: