By the JSB Ultrasonic Engineering Team | Last Updated: May 2026
What is Ultrasonic Plastic Welding?
Ultrasonic plastic welding is an advanced industrial technique where high-frequency acoustic vibrations are applied to workpieces under pressure. This creates a molecular bond, resulting in a high-strength, clean, and permanent weld without the need for glue, screws, or external heat sources.
Choosing the Right Frequency: 15kHz vs. 20kHz
Selecting the correct frequency is critical for production efficiency. Here is how JSB Ultrasonic categorizes machine selection:
- 15kHz Machines: Designed for large-surface components like automotive door panels and large toy assemblies.
- 20kHz Machines: The industry standard for medium-sized parts, electronic housings, and medical devices.
- 35kHz/40kHz Machines: Ideal for delicate electronics where vibration damage must be minimized.
Material Compatibility Chart
Not all thermoplastics respond the same way to ultrasonic energy. Use our chart to verify your material:
| Plastic Type | Weldability | Best Frequency |
|---|---|---|
| ABS | Excellent | 15kHz / 20kHz |
| Polypropylene (PP) | Fair | 20kHz (High Power) |
| Nylon | Difficult (Hygroscopic) | 20kHz |
Why JSB Ultrasonic is India’s Leading Manufacturer
In 2026, JSB Ultrasonic leads the market by integrating Digital Intelligent Generators into every system. Our machines offer:
- Automatic Frequency Tuning: Compensates for horn heat expansion automatically.
- Quality Monitoring: Real-time alerts if a weld falls outside of set parameters.
- Energy Efficiency: 30% less power consumption compared to older analog models.
Frequently Asked Questions (FAQ)
What is the price of an ultrasonic plastic welding machine in India?
Prices typically start from ₹45,000 for handheld spot welders and can go up to ₹3,50,000 for high-end digital automation units. Request a quote here.
Do you provide service in Bawana and Sonipat?
Yes, JSB Ultrasonic provides 24-hour on-site repair and horn tuning services in the Bawana Industrial Area and Sonipat manufacturing hubs.
