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.

The whole experience of the lean tour was excellent. I learned so much over the past week and all of my previous knowledge of lean was reinforced. Not only did I learn about lean management but I was also impressed with the Japanese culture. The whole team at Shinka Management were very helpful and made…
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I wanted to take a moment to sincerely thank you for organizing such a fantastic tour. From the seamless logistics to the thoughtfully curated, authentic Japanese experience, everything was meticulously planned, making for an unforgettable trip. Your team’s professionalism, and passion for what you do really shone through, and it truly enhanced the entire experience. I appreciate…
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I am now back in the office in rainy Seattle and wanted to say a huge thank you, once again for making the lean tour such an enjoyable learning experience. There are so many valuable learnings and enriching experiences that I am looking forward to sharing with my team and colleagues here in the coming days. I…
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I would highly recommend the tour to anyone who is in the business of improving people. The ideas stimulated through this tour have helped me reform our entire vision of what improvement means for our business.
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Personally and professionally I found the week extraordinarily rewarding – not only as a fantastic Lean Japan Tour but as a cultural experience not to be missed. Imagine if you will… taking a group of people you had never met before, under your wing, in one of the most crowded cities in the world. Plenty…
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It was a fasntastic tour from the beginning to the end. It was very well-organised and informative. Sessions were followed with practical training which concentrated more on the ideas that had been explained. The factories visited were chosen in a way that allowed the participants to see a live supply chain work. Big thanks 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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