Handhold Ultrasonic Welding Machine

Product Description:

The handhold ultrasonic welding machine (also known as an ultrasonic welding gun) is a portable spot-welding device consisting of an ultrasonic generator and a pistol-style handheld gun (comprising a transducer and a welding tip). Designed for single-point welding of thermoplastics and non-woven fabrics, it eliminates the need for adhesives, screws, or high-temperature soldering irons, making it ideal for on-site spot welding, riveting, and sealing operations on large workpieces. It operates by converting standard mains electricity into high-frequency electrical energy (20 kHz, 28 kHz, 30 kHz, 35 kHz, or 40 kHz) via the ultrasonic generator. Inside the handheld gun, an ultrasonic transducer converts this electrical energy into high-frequency mechanical vibrations-oscillating tens of thousands of times per second. When the welding tip presses against the two layers of the workpiece, the vibration generates frictional heat at the contact interface, causing it to melt instantly. Upon releasing the switch, the vibration ceases and the material cools rapidly, forming a strong weld joint through molecular fusion; a single welding cycle takes only 0.1 to 1 second.

Parameter of Handhold Ultrasonic Welding Machine:

Features of Handhold Ultrasonic Welding Machine：

1.Ergonomic welding gun with light weight. Free movement without workpiece size limitation. Ideal for large plastic parts, deep cavities and on-site spot repair work.

2.Digital ultrasonic generator with real-time auto-tuning. No frequency drift during long continuous working. Effectively avoid cold solder joints, virtual welding and burning through materials.

3.Welding time can be digitally adjusted accurately within 0.01s. Welding quality stays consistent batch after batch, no scorching or material deformation.

4.Local friction heat only on welding points. Bonding completes within 0.1–1 second. The spot forms molecular fusion with high tensile strength, waterproof and airtight. No glue, no screws, no pollution.

5.Swap titanium alloy welding heads freely to finish plastic spot welding, rivet staking, brass nut embedding and non-woven fabric dot bonding. One machine meets multiple production demands.

6.Perfect for PP, PE, ABS, PC, nylon and other thermoplastics, as well as non-woven fabrics, chemical fiber cloth, hollow boards. Widely used in auto interiors, medical supplies, toys and electronic housings.

Application:

1. Automotive industry: Interior door panels, bumper repair, floor mats, plastic clip riveting points, battery casing spot welding;
2. Medical non-woven industry: Face mask ear-loop spot welding, non-woven protective suit bonding points, non-woven fabric seaming;
3. Packaging industry: Corrugated plastic boxes, plastic cartons, resealable bags, blister packaging seal spot welding;
4. Electronic toys industry: Remote control casings, plastic toy riveting, battery casing spot welding;
5. Light industry/Consumer goods: File folders, cosmetic casings, plastic rivet fastening, craft item spot welding.

FAQ：

Which frequency should I choose, 28kHz or 35kHz?

1.28kHz (higher amplitude & stronger vibration)
This model delivers greater vibration energy. It is the best choice for thick rigid plastic parts, plastic riveting, automotive interior components and thick hollow boards. It creates high-strength welds for heavy-duty production.

2.35kHz (low amplitude, gentle heat output)
This high-frequency option generates less heat, effectively preventing thin materials from being burned or scorched. It is ideal for non-woven fabrics, mask ear loops, thin plastic sheets and precision small parts that require clean and intact surface.

If you send us your material samples, we can run welding tests and recommend the most suitable frequency for you.

Will it cause virtual welding (cold solder, weak joint)?

No, virtual welding rarely happens with our handhold ultrasonic welding machine. Our generator is equipped with automatic frequency tracking technology. It keeps stable vibration without frequency drift even during long continuous production. The digital control panel allows precise adjustment of welding time. Operators can set proper parameters to achieve tight molecular fusion between two layers of material.

If you follow our parameter setting guide, you will get consistent, high-tensile welds without cold joints or weak bonding. We also provide technical debugging support if you meet any welding problems.

For more details of Handhold Ultrasonic Welding Machine, please feel free to contact us !