... performance 4.Durable Ultrasonic Titanium Alloy Sonotrode on Bag Making Machine 1. Applications: It can be used for plastic zippers with teeth, non ... . It is mainly fixed on non woven automatics, plastic bag making machine, etc. And it is also one of the main parts ... of ultrasonic welding machine.2. Size: 2 inches3. Range of frequency: 15KHz, 20KHz, 28KHz ...