Featuring a 20 kHz – 1500 W ultrasonic configuration and a sewing speed of 5–18 m/min, the machine supports 1 kg desiccant bags divided into five compartments or individual 1–2 kg bags. VietSonic advises and manufactures machines based on each business’s actual bag samples, materials, and output requirements.
Desiccant bags can vary in material, weld width, number of compartments, filling weight, and required speed. If the machine configuration is unsuitable, businesses may experience inconsistent weld seams, slow operation, or difficulty switching to a new specification.
Energy, pressure, and speed must be calibrated for the material to produce continuous, neat, and consistent weld seams across every product.
Ultrasonic technology bonds compatible materials without needles or thread, reducing auxiliary materials and thread-related operations.
A business may require 1 kg multi-compartment bags, individual 1–2 kg bags, or other dimensions for its actual application.
As output increases, the system can incorporate an additional transverse compartment-sealing stage instead of requiring a completely new solution.
The finished sample demonstrates the ability to create compartment-dividing weld seams along a continuous bag strip. This is one of the specifications used by VietSonic to evaluate the machine’s application capability.
The machine is test-run directly with the actual material and bag sample.
The machine uses ultrasonic vibration to generate localized heat at the contact area, bonding layers of compatible thermoplastic material. The process requires no needles, thread, or adhesive and can run continuously at the set speed.
The video allows businesses to observe material feeding, weld-seam formation, and the finished bag samples directly.
Operating capability cannot be assessed by power specifications alone. Weld quality, stability during continuous operation, operator handling, and the shape of the finished product must all be reviewed before finalizing the configuration.
Each business may use a different material, bag size, and production process. A suitable solution must therefore begin with an understanding of the product, weld requirements, and target output.
The engineering team at VietSonic can receive samples, conduct welding trials, select the ultrasonic configuration, design the material-feeding mechanism, and recommend options for expanding the process. Businesses receive a solution aligned with their production requirements instead of having to adapt an unsuitable machine themselves.
Identify the material, dimensions, number of compartments, filling weight, speed, and preferred operating method.
Evaluate weldability, seam profile, power, pressure, and the appropriate speed range.
Complete the machine mechanism, test it with the actual sample, and fine-tune it before delivery.
Provide operating instructions, basic setup guidance, and technical coordination when the business changes products.
The specifications below provide an initial reference. The final configuration should be determined after evaluating the material sample and production requirements.
| Technology | Ultrasonic sewing/welding of materials without needles or thread |
|---|---|
| Ultrasonic frequency | 20 kHz |
| Sewing machine power | 1500 W |
| Sewing speed | 5–18 m/min |
| Reference bag specifications | Five-compartment 1 kg bags; individual 1–2 kg bags |
| Higher-output option | Add a 20 kHz – 2000 W vertical ultrasonic welder to form transverse compartment seals |
| Customization capability | Adjustable for the material, bag dimensions, weld-seam profile, and target output |
A sample trial is required for an accurate evaluation. Ultrasonic technology is suitable for many thermoplastic materials, but composition, thickness, and layer structure directly affect the welding result.
Yes. This specification is demonstrated in the video. If the number of compartments, bag length, or filling weight changes, the engineering team will reassess the mechanism and weld-seam layout.
Not necessarily. If transverse compartment seals need to be formed more quickly, an additional 20 kHz – 2000 W vertical ultrasonic welder can be considered. The specific solution depends on the process and target output.
Samples and requirements can be received for testing, configuration consultation, mechanism design, and trial operation before delivery.
Provide the material sample, bag dimensions, number of compartments, and required output. VietSonic will discuss a sample-testing plan and a machine configuration suited to your production line.
Solutions for the design, manufacture, and application of ultrasonic technology in industrial production.
