Founded in 1969, Mecasonic SAS is a leading European specialist in welding and cutting technologies for thermoplastics. Based in Juvigny, France, we bring over 50 years of engineering expertise to manufacturers seeking high-performance, reliable, and industrially robust joining solutions.

As part of the Crest Ultrasonics Group, Mecasonic offers one of the most comprehensive ranges of plastics welding technologies on the market — including ultrasonic, vibration, spin, hot plate, hot-air (thermic), and laser welding. This wide portfolio allows us to support customers across the full spectrum of plastic component manufacturing, from precision micro-assemblies to large, structural parts.

Our solutions are used extensively in the automotive, medical, packaging, electronics, cosmetics, and consumer goods industries, where consistency, speed, and process control are essential. We work closely with clients to tailor welding systems, tooling, and process parameters to ensure optimal part quality and repeatability in both standalone stations and fully integrated production lines.

In addition to plastics expertise, Mecasonic also provides ultrasonic cutting solutions for food processing, delivering clean, accurate cuts with minimal waste — an area where our precision engineering continues to set industry benchmarks.

Mecasonic’s mission is simple: to enable manufacturers to achieve higher quality, greater efficiency, and faster production through advanced, reliable welding and cutting technologies backed by decades of know-how.