Welding

Moojin Keeyeon Co., Ltd. is a nuclear-specialized company possessing core nuclear technology and
world-class welding technology recognized globally. We develop, maintain, and apply
welding procedures for various materials such as carbon, stainless steel, duplex, aluminum,
titanium, aluminum bronze, Stellite, and low-alloy steel, adhering
to stringent nuclear technology and quality standards.

GTAW

Gas Tungsten-Arc Welding

GMAW and FCAW

Gas Tungsten-Arc Welding

LBW

Laser Beam Welding

SAW

Submerged-Arc Welding

World-class technology

We will strive to grow together with our customers and deliver the best possible service.

Moojin's technology offers world-class performance and reliability.
We possess over 130 types of Welding Procedure Specifications(WPS) and
have a team of more than 20 experts and technicians with over 20 years of experience.

Nuclear power plant equipment is broadly divided into Main Power Generation Equipment, Balance of Plant(BOP), and Spare Parts. Large companies such as Doosan Enerbility and the U.S. firm Westinghouse manufacture Main Power Generation Equipment like reactors, turbines, generators, and steam generators, while BOPs and Spare Parts areproduced by small and medium-sized enterprises. Moojin Keeyeon Co., Ltd. primarily manufactures BOP and Spare parts, and it has notably exported six BOP packages to the UAE Barakah Nuclear Power Plant, the highest number among South Korean SMEs.

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Specialized in welding

Moojin Keeyeon Co., Ltd. operates a world-class Quality Assurance system in
the nuclear sector, excels in specialized and precision machining, and possesses advanced
welding technology that is recognized internationally, based on our extensive experience.

Special process management (Heat Treatment, Welding, Non-Destructive Testing, Painting)

Qualification For Inspectors, Testers, Auditors, And Welders

Strict Quality Control width unclear based Quality Assurance Program

Continuous R&D

Moojin Keeyeon Co., Ltd. has a proven track record
of successfully localizing essential nuclear
power plant equipment,
which was previously entirely
dependent on imports, through R&D projects.

SMR(Small Modular Reactor) & others

Moojin Keeyeon Co., Ltd. has participated in the development of next-generation nuclear power plants (SMR, MMR, iSMR) and the development of casks for transporting spent fuel, and is preparing for the future.

Participated in MMR(Micro Modular Reactor) R&D project

period : 2019.04 ~ 2022.12

Carried out R&D project for transport containers for spent fuel in Heavy Water Reactors

period : 2017.05 ~ 2023.04