Ultrasonic Plastic Welding Equipment Manufacturer. (Ultrasonic Welding Transducer https://www.bjultrasonic.com/shop/ultrasonic-welding-transducer/ ) The ultrasonic welding process uses high frequency mechanical sound waves (ultrasonics) to create molecular heat between thermoplastic materials. These high frequency acoustic vibrations are transmitted through thermoplastic material by a sonotrode. Typically two parts are located and supported in a fixture beneath the sonotrode. The