Chuo Malleable Iron – Factory Tour
Chuo Malleable Iron is a manufacturer of cast iron and aluminum components. The company mainly supplies to the automobile and electric industries and their major trading partners include Toyota Group companies such as Toyota Motor Corporation, Denso and Aisin Seiki. The company also produces steel furniture such as metal framed chairs which represents around four percent of their revenue.

Corporate Information
- Company: Chuo Malleable Iron Co., Ltd.
- Foundation: 1944
- Location: Headquartered in Aichi Prefecture
- Main Business: Manufacturing of cast iron and aluminum components

Chuo Malleable Iron – Lean Characteristics
Kanban System, JIT, Visual Management
Chuo Malleable Iron is a supplier of cast iron and aluminum components to the automobile and electric sectors. The company was founded in 1944 in Aichi Prefecture and started to supply for Toyota Motor Corporation in 1948.
The company has four production bases in Japan, three in the Tokai Region and one in Kumamoto Prefecture on the southern island of Kyushu as well as two production bases in China.
Their Nisshin Plant is the biggest plant that produces approximately 2,400 tons of cast iron products and 100 tons of aluminum products per month. The company uses electric furnaces in their efforts to achieve improved environmental outcomes and Just-In-Time fabrication of components based on a kanban system. The factory also features effective visual management examples.
The visit to the Nisshin Plant includes a presentation, a site tour and a Q&A session with senior managers.



If I had to describe the Lean Japan Tour, I would describe it as a great “experience”. It was an experience in every sense – from being surrounded by a new culture, landscapes, food, people; and learning a successful and proven work philosophy with results that are maintained over time. We were able to learn…
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The whole tour was very professionally undertaken and led. Paul and Ben have to be congratulated for putting together a very informative and very enjoyable experience. The itinerary was excellent and to see from the raw material all the way through the supply chain through to the finished product was superb. I loved the thought…
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A great tour. Having spent over 20 years in manufacturing I now understand the true meaning of Kaizen.
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The tour has been a once in a lifetime experience and a real insight into Japanese Industry and culture. The warm welcome and organisation of the week including travel, hotels, places to eat and all visits were exceptional. The Toyota Group and Isuzu factory tours really demonstrated the Toyota Production System followed up with great…
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I recently had the privilege of attending the Lean Japan Tour organized by Shinka Management, and I can say it was an unforgettable experience! From start to finish, the tour was exceptionally well-managed, and I came away with a wealth of new knowledge and insights into lean manufacturing. I want to express my gratitude to…
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The Shinka Management Lean Japan Tour is a professional development program run several times annually. The program includes a mix of lean and kaizen seminars, hands-on lean training and visits to several benchmark lean companies. For further information and program dates, see the lean tour overview page.
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