“With our new Fortis series, we are presenting an extremely versatile solution for high-quality manual MIG/MAG welding.
We have specially designed these welding machines to meet the diverse requirements of small and medium-sized businesses,” emphasizes Peter Fronius, Head of System Solutions at Fronius International.
“Fortis combines robust technology and intuitive operation with maximum connectivity to set new standards in the metalworking industry.”
The brand new devices can be seen live for the first time at FABTECH in Chicago (USA) and SCHWEISSEN & SCHNEIDEN in Essen (Germany) in September 2025. Several models will also be available for visitors to try out in person.
One series, many variants
The Fortis product range contains powerful devices in the 270 to 500 A categories, either as compact all-in-one systems or as split versions with an external wire feeder for a significantly extended operating range.
All models can be equipped with proven Fronius functions such as pulse welding, SynchroPulse, stitch welding, TAC tacking function, HotStart, and anti-stick.
The portfolio is complemented by the Fortis XT, an extremely energy-efficient all-rounder for three-phase mains voltages from 200 to 600 V and single-phase operation up to max. 320 A including CEL mode.
As a result these machines are perfect for worldwide use, save energy thanks to their higher power factor, and offer an additional higher output characteristic curve for even greater welding performance.
Rounding off the range is the Fortis Duo. It combines a compact device with an additional, external wire feeder to enable the use of two wire spools and two welding torches with just one single machine.
“This means that the welder can easily switch between different materials or wire diameters at the touch of a button—and all without any retooling,” explains Michael Eisterhuber, Product Line Manager at Fronius International.
“Users save an enormous amount of time through this feature, which is ideal for frequently changing tasks in contract manufacturing, steel construction, or assembly.”