Polysoude
Partager
Worldwide leader in orbital and mechanised welding applications and cladding solutions. fusion, piping, tubing TIG and GTAW welding
TIG Welding, Orbital Welding, Automatic Welding, Pipe Welding
Your reliable partner in orbital and automated TIG welding and cladding... Polysoude is renowned for its expertise in orbital TIG welding, with an extensive product range which includes highly efficient equipment for mechanised, automated, robotic and automatic TIG welding systems, as well as solutions for weld overlay / cladding applications.
08/10/2026
𝗣𝗢𝗟𝗬𝗦𝗢𝗨𝗗𝗘 × 𝗣𝗥𝗢𝗧𝗘𝗠 | 𝗔 𝗖𝗢𝗟𝗟𝗔𝗕𝗢𝗥𝗔𝗧𝗜𝗢𝗡 𝗙𝗢𝗥 𝗖𝗨𝗦𝗧𝗢𝗠 𝗦𝗢𝗟𝗨𝗧𝗜𝗢𝗡𝗦
With over 50 years’ experience in on-site and workshop machining solutions, Protem specialises in the design and manufacture of portable machining equipment and supports manufacturers in developing solutions tailored to all their applications.
It is with this in mind that our two companies have combined their expertise in co-design for a recent French project developed for a major player in the defence and shipbuilding sectors.
As part of this collaboration, Protem designed and manufactured the entire chassis as well as the carriage track, the true cornerstone of the project. Polysoude was thus able to integrate a narrow-joint TIG welding carriage fitted with our latest cameras to meet the project’s specific requirements.
This collaboration illustrates how our expertise complements each other in designing and producing bespoke welding and preparation solutions, tailored to the specific needs of each customer’s application.
In these photos, the teams from Protem and Polysoude are working hand in hand for the pre-acceptance of the first narrow-joint orbital welding machine.
01/10/2026
𝗣𝗼𝗹𝘆𝘀𝗼𝘂𝗱𝗲 𝗮𝘁 𝘁𝗵𝗲 𝗝𝗮𝗽𝗮𝗻 𝗜𝗻𝘁𝗲𝗿𝗻𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗪𝗲𝗹𝗱𝗶𝗻𝗴 𝗦𝗵𝗼𝘄!
From September 16 to 19, Polysoude joined GMT, at the Japan International Welding Show in Tokyo.
As Japan’s largest exhibition dedicated to welding, joining and cutting technologies, the show brings together industry professionals from around the world to discover the latest innovations, exchange expertise and explore new solutions for the future of manufacturing.
Throughout the event, our teams had the opportunity to meet with customers and industry professionals, discuss their welding challenges and present Polysoude’s expertise in mechanised and automated TIG welding.
Being alongside GMT at this major industry event is also an opportunity to strengthen our presence in the Japanese market and build on the strong relationships we have developed with our local partner and customers.
Thank you to the GMT team for welcoming Polysoude on their booth, and to everyone who came to meet us in Tokyo!
24/09/2026
𝗥𝗮𝗶𝘀𝗶𝗻𝗴 𝘀𝗮𝗳𝗲𝘁𝘆 𝗮𝘄𝗮𝗿𝗲𝗻𝗲𝘀𝘀 𝗮𝘁 𝗣𝗼𝗹𝘆𝘀𝗼𝘂𝗱𝗲 !
Last week, our teams at the Nantes site came together for our annual Safety Day : a whole day devoted to prevention and safety at work.
As a reminder, every day in France, more than 1,500 workplace accidents are recorded. And sometimes, it takes just 30 seconds to prevent one. So we got together in groups and participated in four fun immersive workshops !
• 𝗖𝗿𝗮𝘀𝗵 𝗧𝗲𝘀𝘁 - A road crash simulator to experience first-hand the importance of wearing a seatbelt
• 𝗥𝗶𝘀𝗸 𝗛𝘂𝗻𝘁 - Spotting hazards in real-life situations and on technical diagrams
• 𝗔𝗰𝘁𝗶𝗼𝗻/𝗥𝗲𝗮𝗰𝘁𝗶𝗼𝗻 - A team quiz with buzzers to test your reflexes… and win prizes!
• 𝗧𝗲𝘀𝘁 𝗬𝗼𝘂𝗿 𝗟𝗶𝗺𝗶𝘁𝘀 - Prism goggles to experience the effects of fatigue, alcohol and drugs on alertness
At Polysoude, everyone’s safety is a daily priority. Events like this provide a different, practical and interactive way to raise awareness of risks that are sometimes underestimated in everyday life.
A big thank you to all the teams involved in organising the event, as well as to all the staff who came along to take part!
18/09/2026
𝗣𝗼𝗹𝘆𝘀𝗼𝘂𝗱𝗲 𝗶𝘀 𝗶𝗻𝘃𝗲𝘀𝘁𝗶𝗻𝗴 𝗶𝗻 𝗶𝘁𝘀 𝗹𝗼𝗻𝗴-𝗲𝘀𝘁𝗮𝗯𝗹𝗶𝘀𝗵𝗲𝗱 𝘀𝗶𝘁𝗲 𝗶𝗻 𝗡𝗮𝗻𝘁𝗲𝘀!
Global demand is accelerating in our key markets: energy, nuclear, defence and high technology (data centres). To meet our customers’ growing needs, we are set to invest in a major extension to our long-established site, which opened in Nantes in 1988.
An additional 2,600 m² of floor space, with increased assembly height for the manufacture of our bespoke equipment, as well as an expansion of our workforce, will enable us to increase our production capacity in Nantes in the long term.
With this investment, as the world leader in mechanised TIG welding, we will be able to support the construction of the future EPR 2 power stations in France – a challenge that is both industrial and one of national sovereignty for the French energy sector.
Since 1961, our TIG welding equipment, designed and manufactured in Nantes, has been exported to more than 70 countries around the world. This expansion marks a new chapter in our development.
10/09/2026
𝗗𝗔𝗧𝗔 𝗖𝗘𝗡𝗧𝗘𝗥𝗦: 𝗛𝗢𝗪 𝗧𝗢 𝗚𝗨𝗔𝗥𝗔𝗡𝗧𝗘𝗘 𝗣𝗘𝗥𝗙𝗘𝗖𝗧 𝗣𝗨𝗥𝗜𝗧𝗬
AI has an enormous appetite for computing power, and therefore for heat. Data centers are massively shifting to liquid cooling to cool their servers, with purity and reliability requirements that rival those of the pharmaceutical and semiconductor industries.
A leak, a contamination, a welding defect on a liquid cooling circuit? This isn't just a technical issue, it means servers going down and millions at stake.
It's precisely on this type of installation that our P4⁺ power sources (AVC/OSC), combined with MW and MU welding heads (notably the MU128), prove their worth:
🔵Closed welds, oxidation-free, zero defects
🔵Guaranteed repeatability across kilometers of piping
🔵Reliability already proven in our historic high-purity markets
AI infrastructures demand welding reliability that matches the scale of their challenges.
⚙️ WHEN EVERY WELD COUNTS
In demanding welding environments, precision isn’t optional, it’s essential.
Polysoude develops tailored solutions for mechanised and automated TIG welding, helping industries achieve consistent, high-quality results across challenging applications, from pipe and tube to tubesheet welding.
🔬 Engineered for precision
Advanced WPS, intuitive interfaces and controlled welding parameters ensure repeatable results while reducing the variability associated with manual operationas.
⚡ Designed for productivity
From Hot Wire TIG for increased deposition rates to optimised welding preparation, our technologies help you:
✅ Achieve repeatable, high-quality welds
✅ Reduce dependence on manual intervention
✅ Optimise filler material consumption
✅ Increase productivity without compromising quality
Because automation isn’t simply about welding faster.
It’s about welding better, consistently, precisely and efficiently.
Discover how Polysoude can support your most demanding welding applications. 🤝
𝗧𝗥𝗔𝗜𝗡𝗜𝗡𝗚 𝗜𝗡 𝗔𝗖𝗧𝗜𝗢𝗡 🔧
A look back at a training session featuring the P6-4, TS8-75 and a rotary welding positioner.
With such a modern machine setup in a brand-new workshop, training becomes an even more engaging experience.
🔧 Technology & precision
A modern machine environment combined with hands-on training creates the perfect setting for sharing knowledge and developing technical skills.
🤝 Strong team, valuable exchange
Technology, precision and teamwork, exactly what professional training should be about.
Continuous learning and technical expertise remain at the heart of what we do. 🤝
20/08/2026
𝗢𝗻𝗲 𝗮𝗿𝗰. 𝗭𝗲𝗿𝗼 𝗰𝗼𝗺𝗽𝗿𝗼𝗺𝗶𝘀𝗲. ⚡
When production demands both speed and repeatability, plasma welding steps in.
At Polysoude, our plasma welding solutions are built to deliver a concentrated, stable arc, ideal for series production and applications where consistency from the first weld to the thousandth is non-negotiable.
Compared to TIG, the difference is immediate:
⛓ No weld-seam preparation required
🧵 Significantly less filler metal consumed
⚙️ Longer lifespan of wearing parts
The result: cleaner seams, shorter cycle times, and a process built to hold its precision over long production runs.
Because when repeatability defines your production line, the arc you choose makes all the difference. 🔩
11/08/2026
⚽️ Le mercato estival touche à sa fin… Mais chez Polysoude, on est toujours à la recherche de nouveaux talents pour rejoindre l'équipe !
🔴 DANS LES COULISSES DE POLYSOUDE
Comme dans toute équipe performante, la nôtre repose sur des postes complémentaires, chacun ayant son rôle à jouer.
Un seul projet de soudage orbital mobilise des ingénieur·es soudage qui conçoivent le procédé, des technicien·nes qui pilotent les équipements sur site, des chef·fes de projet qui tiennent le calendrier et des équipes support qui garantissent à tous nos clients, du nucléaire à l'aéronautique, la précision qu'ils attendent.
En ce moment, nous renforçons nos équipes sur plusieurs postes : ingénieur·es soudage, soudeur·ses TIG orbital, chef·fes de projet, acheteur·ses, développeur·ses informatique embarquée…
Chacun apporte une expertise différente, au service d'une même mission : faire avancer nos produits et les technologies de soudage orbital.
De l'atelier au bureau d'études, chaque poste compte et chaque nouvelle recrue nous aidera à relever le prochain défi technique avec la même précision et la même exigence que nos soudures !
📩 Découvrez toutes nos offres ou envoyez-nous une candidature spontanée à [email protected] / www.polysoude.com/fr/a-propos-de-polysoude/
Elles bougent / Capital Filles / Femmes Ingénieures
𝗪𝗲𝗹𝗱𝘀 𝘁𝗵𝗮𝘁 𝗼𝘂𝘁𝗹𝗮𝘀𝘁 𝘁𝗶𝗺𝗲 ⚡🌍
Laying and connecting underground pipelines remains one of the toughest challenges in the industry. Our customers are regularly called upon to weld pipelines on site for the transport of a wide variety of media, from natural gas, oil up to hydrogen.
At Polysoude, our MU IV welding heads are designed to handle exactly these applications, with reliability and precision on every diameter.
A concrete example here: a carbon steel pipe Ø88.9x5.5mm, welded in 3 layers with our MU IV 115 welding head (28 to 115mm OD, AVC/OSC, cold wire), for a total welding time of approximately 15 minutes.
From the compact MU IV 8/38 open welding head (8 to 38mm OD) with arc voltage control (AVC) and oscillation of the tungsten (OSC) available up to 275mm OD, to the MU IV with Hot Wire (HW) for 25 to 219mm OD pipes, our range covers the full spectrum of on-site pipeline welding needs.
Because as energy networks keep expanding worldwide, on-site welding quality has never mattered more! 🤝
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2, Rue Paul Beaupère
Nantes
44300
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