In February 2025, the Bühler Group completed the installation of the first of two state-of-the-art megacasting machines with a clamping force of 92,000 kilonewtons (kN) at the Seojin System factory in Vietnam. An inauguration ceremony organized by Seojin System was attended by leading industry and government officials. With this achievement, the two companies have taken a significant step in their partnership, underlining their joint commitment to further develop production capabilities in the EV parts supply sector.
Thomas Gass, the Swiss Ambassador to Vietnam, emphasized that the combination of innovative Swiss technology, Vietnamese industrial determination and Korean experience and reach in the automotive industry improves production efficiency and makes supply chains stronger and more resilient. He was joined by Jun Dong Kyu, President of Seojin System, and Cornel Mendler, Managing Director of Die Casting at Bühler Group.
Jun Dong Kyu emphasized Seojin System's expertise in supplying automotive castings to OEMs around the world:
"Bühler's innovative solutions give us a significant competitive advantage in supplying high-quality automotive castings around the world. Buhler's cutting-edge technology, combined with Vietnam's strategic advantages in terms of logistics, tax incentives and skilled labor, allows us to maximize efficiency and strengthen our position in the global supply chain."
Cornel Mendler expressed his appreciation for Seojin's expertise and significant investment in technology and skilled labor, highlighting the strength of the partnership:
"This partnership highlights the synergy between Bühler's innovative solutions and Seojin's capabilities, strengthening our joint strengths and our role in transforming the automotive sector. Since the beginning of our partnership in 2019, Seojin has invested not only in Bühler's solutions, but also in its experts to ensure the supply of high-quality parts for global OEMs."
Bühler's mega production cells at Seojin in Vietnam were the first - and remain the only - in Southeast Asia.
The delegates toured the Seojin System plant, where they saw the Carat 920 in operation. Bühler engineers are currently installing the second megacasting cell, which will increase production capacity. Each cell can produce up to 200,000 parts per year for electric vehicles - such as battery trays or rear underbodies.
This installation builds on the companies' ongoing collaboration, which began with the Carat 610 project in 2019. The additional Carat 920 machines will strengthen Seojin's production capacity and expand its foundry operations. Megacasting technology enables the production of larger components, improves manufacturing efficiency, reduces material waste and supports more sustainable processes.
Seojin System is already building another factory, which is scheduled for completion in 2025. There are also plans to work more closely with local partners to supply cast parts for the Vietnamese automotive supply chain.
Bühler has been a leader in die casting technology for almost 100 years. The Carat series was developed to meet the growing demand for large structural castings in modern vehicle manufacturing. With clamping forces of 10,500 to 92,000 kN, it enables the production of large, complex components. Megacasting can replace up to 100 individual parts with a single die-cast structure - simplifying assembly processes, reducing material usage and increasing performance through lighter, stiffer designs.
With production facilities in Europe, the USA and China, Bühler has a global presence. Over 900 Carat machines are already in use worldwide - making them one of the most widely used solutions in the industry.
