The arc electric welding is the most diffused and well-known welding technology. In this field ISEA produces welding dynamo with and without auxiliary generator.
These machines are intended to be combined to thermal engines to realize weldings motion, or to be mounted on pipe heating tractors.
The arc welding machines are also used in the countryside in the realization of aqueducts, oil pipelines, gas pipelines, etc. ISEA also produces converter groups for arc welding established by a welding dynamo moved by an electric engine.