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High Frequency Ultrasonic Spot Welding Continuous Processing

High Frequency Ultrasonic Spot Welding Continuous Processing

portable ultrasonic welder

handheld ultrasonic welder

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Horn Material:
Alumium Alloy Or Titanium Alloy
Digital Generator
5kg In Totall
Product Name:
High Frequency Ultrasonic Spot Welding Continuous Processing
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Product Description

High Frequency Ultrasonic Spot Welding Continuous Processing



Ultrasonic spot welding machines are widely used in the plastic industry around the world. The working principle of ultrasonic spot welding machines is to use the high-voltage and high-frequency signals generated by the generator to convert them into high-frequency vibration through the energy conversion system and add them to plastic products. On the surface, the friction between the workpiece surface and the internal molecules is generated by vibration at the interface. When the temperature reaches the melting point of the workpiece, the workpiece interface rapidly melts, then fills the gap between the interfaces. After the vibration stops, the workpiece is cooled and formed under a certain pressure To achieve perfect welding. Ultrasonic welding is an advanced process for joining plastic parts due to its fast, clean, and safe advantages. This technology can replace the solvents, adhesives, studs or other mechanical fixing methods used in the past. Applying this technology can improve production efficiency ,lower the cost.













Vibration method



Welding time 





Grid horn

Application of ultrasonic spot welding machine:

  1. Principle of operation: Ultrasonic non-woven welding utilizes high-frequency mechanical vibrations to create frictional heat at the bond interface of the non-woven materials. The process involves the following steps:

    • Preparation: The non-woven fabrics to be joined are placed together, ensuring proper alignment and contact along the bonding area.

    • Ultrasonic horn and anvil: An ultrasonic horn, also known as a sonotrode, is placed against one side of the non-woven fabrics, while a complementary anvil supports the other side.

    • Application of vibrations: An alternating electrical voltage is applied to a transducer, which converts it into high-frequency vibrations. These vibrations are transmitted to the horn, causing it to vibrate rapidly.

    • Welding phase: The vibrating horn applies pressure to the non-woven fabrics, causing them to deform and generate frictional heat. The heat softens the fibers on the surface of the fabrics, allowing them to fuse together.

    • Cooling and solidification: After a specified welding time, the vibrations and pressure are stopped, and the bonded area is allowed to cool and solidify, forming a strong bond.



  • Speed and efficiency: Ultrasonic non-woven welding is a rapid process, enabling high production rates and efficient assembly.                                                                                                                                                            

  • Strong and reliable bonding: The localized heat and pressure generated during ultrasonic welding result in strong and durable bonds between non-woven fabrics.                                                                                                     

  • No additional materials: Ultrasonic non-woven welding does not require the use of adhesives, solvents, or stitching, reducing material costs and simplifying the assembly process.                                                                                      

  • Clean and aesthetically pleasing: The welding process does not leave behind residue, ensuring a clean and visually appealing bond.                                                                                                                                                          

  • Versatility: Ultrasonic non-woven welding can be used to join various types of non-woven fabrics, allowing for versatility in applications.


Features of Ultrasonic Spot Welder:
1. High-quality imported ultrasonic transducer with strong power and good stability.
2. The whole machine is exquisite in design, small in size and does not take up space. The operation is simple, convenient and practical.
3.800W is more powerful and more powerful than ordinary other products.
4. Assembly of high-quality imported parts of main parts.
5. The noise is slight and the working environment is environmentally friendly.


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