Altrasonic’s Ultrasonic Sleeve Welding Machine is a high-performance system designed specifically for the sealing and welding of sleeves made from synthetic and blended fabrics. It offers multiple intelligent functions such as frequency tracking, amplitude adjustment, automatic overload protection, primary overcurrent pulse handling, overheating protection, secondary overcurrent adjustment and protection, speed control, and more. The result is a highly stable and reliable machine tailored for precision textile processing.

Working Environment Requirements
Ambient Temperature: < 45°C
Humidity Range: 10%–90% RH (non-condensing)

Power Supply: 220V ±10%, 50/60Hz, 8A

Specifications
Input Power: 200W
Ultrasonic Frequency: 20 kHz
Operating Speed: 0–20 m/min
Pattern Roller Type: Special cross-shaped (“+”) design, Width: 0–20mm; Diameter: 30mm
Machine Dimensions: 720mm (L) × 540mm (W) × 1430mm (H)
Net Weight: 85 kg

Operating Principle
Ultrasonic welding uses a high-frequency electrical signal generated by an oscillation circuit, which is then converted into mechanical vibration energy. This energy—at a frequency beyond the threshold of human hearing—is transmitted through the horn (welding head) to the materials being welded. The high-speed friction at the joint interface causes the materials to soften and fuse under pressure. When the vibration stops, pressure is briefly maintained, allowing the materials to solidify and bond on a molecular level. Typical welding times are less than one second, and the resulting weld strength can match that of the original material. Mold size and shape are customized based on the product.

Machine Composition
The ultrasonic sleeve welding machine consists of a pneumatic system, control system, ultrasonic generator, transducer, horn and mold (anvil wheel), and mechanical framework.

Key Feature
1. The patterned roller (horn) is made from specially treated high-strength alloy steel, ensuring excellent wear resistance and long service life.
2. No preheating is required. The machine supports both continuous and pulse operation modes, depending on material characteristics. It offers fast processing, mass production capability, precise corner welding, and operates without smoke, sparks, or damage to fabric edges.
3. Simple operation—easy to learn and use, suitable for standard factory workers.
4.Low-noise 20kHz ultrasonic system minimizes environmental interference.
5.The machine can weld, perforate, and emboss in one step, producing seamless, sealed, and aesthetically clean edges without fraying.
6.Ultrasonic sealing directly bonds various thermoplastic materials, enabling hemming, embossing, and pattern pressing. Power can be adjusted based on material type and thickness.
7. Capable of achieving both color printing and foil stamping effects through pressure application.
8. Multiple machines can be combined to handle larger-scale products such as duvet covers or umbrellas. The robust cast structure ensures durability and consistent welding/embossing performance. Rollers and molds are made from high-quality alloy steel. Custom pattern rollers can be developed based on customer designs. All parts are easy to install and adjust via eccentric mechanisms for quick horizontal alignment.

Welding Demonstration Video
Below is a video demonstration showing our ultrasonic sleeve welding machine processing Oxford fabric. As shown, the machine delivers excellent waterproof sealing and strong weld strength, making it ideal for high-performance applications.

If you're looking for a reliable solution for high-efficiency fabric sealing and sleeve production, Altrasonic's Ultrasonic Sleeve Welding Machine is your ideal choice. 

Contact us today for technical consultation.