GUNMA SEIKO | The Pioneer of Cold Forging

[News]

2024/4/25 Information IONING PROCESS TECHNIQUE Part.3 was added.
2022/4/5 Information "Ironing thechonology & two-parts integration” using hydraulic presses was added.
2021/8/25 Information Realization of long “double-shaft splined” shaft forging was added.
2020/10/29 Information “What is cold forging” & ”Merits of cold forging “, etc. have been added.
2019/09/25 Information We have added a page to introduce our purposed technology.

Click here to view the company introduction video.

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Ever since its establishment in 1968, Gunma Seiko has worked consistently to establish cold forging technologies.
Of these, our aluminum cold forging processes are backed by years of technical know-how and these technologies are garnering a great deal of attention as a manufacturing process that delivers high quality with little material waste.
We invite you to explore our globally recognized cold forging technologies.