Ultrasonic Welding and Bonding Systems
topic
Ultrasonic lamination systems use piezoelectric transducers vibrating at 20 to 40 kilohertz pressing against thermoplastic composite stacks through a patterned anvil roll at pressures of 0.3 to 3 Newtons per millimetre, creating localised frictional heating at the substrate interface that melts thermoplastic components at bond point locations defined by the anvil pattern, producing patterned bonds without external heat for medical device assembly, hygiene product construction, and filtration media lamination.
Role
Creates clean, contamination-free thermal bonds between thermoplastic substrates without adhesive, flame, or conductive heat transfer, providing the dry bonding method for medical and cleanroom applications where adhesive outgassing or flame contamination is unacceptable, with ultrasonic welding being the dominant bonding technology for disposable medical nonwovens, face mask perimeter sealing, and hygiene product ear loop and waistband attachment requiring rapid, clean bonding at defined pattern locations.