Bühler supplies Tier 1 suppliers from Vietnam

The Swiss Bühler Group has supplied Seojin System with two Carat 920 megacasting solutions for its plant in Vietnam. With these cells, the Korean manufacturer aims to strengthen its role in the electric vehicle (EV) supplier industry.

In February 2025, Bühler Group completed the installation of the first out of two state-of-the-art megacasting machines with locking force of 92,000 kilonewtons at Seojin System’s factory in Vietnam. To mark this milestone, Seojin System hosted an inauguration ceremony attended by industry leaders and officials. 

During the event, discussions focused on the automotive sector and the strategic role of Tier 1 suppliers from Vietnam. Jun Dong Kyu emphasized Seojin System’s ability to supply cast automotive parts to original equipment manufacturers globally. "With Bühler’s innovative solutions, we gain a substantial competitive advantage in supplying superior cast automotive parts around the world," he said.

Up to 200,000 parts per year

Delegates toured the Seojin System’s factory, where they observed the Carat 920 die-casting machine in action.  Bühler engineers are currently installing the second machine, further expanding Seojin’s production capacity with up to 200,000 parts per year per machine for electric vehicles such as battery trays, and rear underbodies. This latest installation builds on the companies’ ongoing collaboration, which began with the Carat 610 project in 2019. The addition of the Carat 920 machines strengthens Seojin’s production capabilities and expands its casting operations. By enabling the production of larger components, megacasting technology improves manufacturing efficiency, reduces material waste, and supports more sustainable production processes. 

Expansion plans don’t stop there. Seojin System is already in the construction phase for another factory which will be completed in 2025. Seojin is planning to also cooperate with domestic partners to provide casting parts for companies in the automotive parts supply chain in Vietnam.  

Featured photo: Bühler Group