PRODUCT REVIEWS
Manual MIG / MAG welding solutions
Family-owned welding specialist Fronius, with 1,752 active patents, has launched its new Fortis series of manual MIG / MAG welding solutions.
“ 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. Fortis combines robust technology and intuitive operation with maximum connectivity to set new standards in the metalworking industry,” highlighted Peter Fronius, Head of System Solutions at Fronius International.
The new devices were seen live for the first time at FABTECH in Chicago( USA) and SCHWEISSEN & SCHNEIDEN in Essen( Germany) in September 2025. Several models were 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 wirefeeder for a significantly extended operating range. All models can be equipped with 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 allrounder 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,” said Fronius.
Rounding off the range is the Fortis Duo. It combines a compact device with an additional, external wirefeeder to enable the use of two wire spools and two welding torches with 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,” explained Michael Eisterhuber, Product Line Manager, 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.”
Manual MIG / MAG welding with the Fronius Fortis.
A flexible tool
In many companies, welding tasks change daily with new materials, changing seam shapes or different components. The Fronius Fortis was developed as a solution to aid in this dynamic.
“ With up to 240 welding characteristics that have been specially optimised for steel, stainless steel and aluminium, Fortis guarantees reliable results— even in demanding applications such as verticalup seams, root passes or thin sheet metal joints,” said Fronius.
The new Fortis product family( 270 to 500 A).
MIG / MAG, TIG or MMA processes are covered. Fortis variants are available up to a power category of 500 A with the Multiprocess function and can handle all common welding processes.
“ With Multiprocess, Fortis is not only versatile but also fit for the future. This means that it is equipped for all possible future tasks that may not even be known today,” added Peter Fronius.
“ A central element of the Fortis series is our new operating concept,” outlined Eisterhuber.“ The clear 7” colour display with dynamic visualisations, self-explanatory graphics and a multilingual menu with over 30 languages make operation particularly
Peter Fronius, Head of System Solutions, Fronius International.
easy— even for less experienced users.” Three robust rotary and push buttons allow precise adjustments and parameter selection, even when wearing welding gloves. Working and welding parameters are also visible on the first menu level.
“ Important settings can be saved and the newly integrated welding parameter wizard guides the welder to the right setting in a few steps, leading to fewer errors, less downtime and greater efficiency and quality in production,” confirmed Fronius.
Connectivity and sustainability
With WiFi and Bluetooth as standard features, the Fortis can be fully integrated into the Fronius software landscape. The devices are compatible with WeldCube Air, WeldCube Premium, WeldCube Navigator and Central User Management for user administration, seamless welding data documentation, fleet management, and process reliability.
“ The Vizor Connect welding helmet can also be connected wirelessly. NFC readers, wireless remote controls and extensive documentation functions are available as optional extras,” added Fronius.
“ The new housing concept for the Fortis series relies on a high proportion of recyclable aluminium( 53 %) and reduces the use of plastic. The devices are particularly easy to maintain, durable, designed for tough use in harsh conditions and extensively tested, protected by the casing for the sophisticated technology inside. Fortis XT also offers energy savings of up to 16 %, making it not only extremely powerful but also resource-efficient,” concluded the welding specialist. n
www. fronius. com / fortis
120 | ismr. net | ISMR October 2025