Higher speed, greater precision, better for the environment: The benefits of ultrasonic welding are obvious, and the technology has become a staple in many industrial sectors. Now, the name of the game in the industry is to make existing systems even better. The current multi-frequency machine is a case in point. The sonxTOP line of MS Ultraschall based in the Swabian region of Germany has a servo-electric drive concept that operates without compressed air, is ideally suited for clean-room environments, and ensures process and reproduction accuracy.