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The ultrasonic generator converts alternating current into high-frequency high-voltage electricity at 15kHz, 20kHz, 40kHz, etc. This signal is converted into high-frequency mechanical vibration by the transducer. The horn transmits the vibration to the contact surface of thermoplastics. Due to high acoustic resistance at the interface, intense local friction heat is generated, which instantly melts the contact surface. Pressure is then applied for cooling and shaping, forming a firm molecular bond without adhesives, screws or other auxiliary materials.
1. Ultrasonic Generator: Provides high-frequency electrical signals with automatic frequency tracking function.
2. Transducer + Booster + Horn: Completes electro-mechanical vibration conversion and amplitude amplification; the horn needs to be customized according to the workpiece.
3. Frame and Pressure System (pneumatic / servo): Provides precise pressure and stroke control.
4. Control System: Sets welding parameters such as time, energy and stroke, and records data.
1. Standard Desktop Type (pneumatic / servo):
General purpose, suitable for mass welding of small and medium sized parts; servo models offer higher precision (0.01mm stroke level).
2. Rotary Table Ultrasonic Welding Machine: Multi station automated design, suitable for high speed continuous production.
3. Small Portable / Integrated Type: Compact and flexible, suitable for laboratories or small batch trial production.
- Only applicable to thermoplastics (such as ABS, PC, PS, PA, PP, PET); thermosetting plastics cannot be welded.
- Widely used in electronics & electrical appliances (mobile phone cases, chargers, earphones), automotive (interior parts, sensor housings), medical (syringes, sampling tubes), toys, packaging and other industries.
- Supports various processes including welding, riveting, embedding, spot welding, trimming, etc. Core Advantages
1. Fast speed (single welding 0.1–1 second), high efficiency.
2. Welding strength close to base material, can achieve air tight / water tight sealing.
3. No consumables, no pollution, environmentally friendly and energy saving.
4. Easy to integrate into automated production lines.
