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.

Koolywurtie, South Australia, Australia
The team at Shinka have done a sensational job of providing an in-depth tour with lots to learn about the Toyota Production System and lean manufacturing. The tour was carefully planned, and we got the most out of our time in Japan.
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Quezon City, Manila, Philippines
Thank you, Shinka Management, for providing me with the opportunity to learn more about Kaizen. As a Quality practitioner, witnessing the evolution of Toyota and its implementation of Kaizen has been amazing. Learning how to adapt Kaizen principles from manufacturing for implementation within a hospital setting has been truly inspiring. Again, thank you Shinka Management!…
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Buenos Aires, Argentina
The Lean Japan Tour has allowed me to learn both professionally and culturally. It has been an invaluable experience to learn through interacting directly with a Japanese sensei. It has been a pleasure experiencing this program in Japan, with the locals always helping us as if we were a relative. The Lean Japan tour is…
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Paul and Ben from Shinka Management need to be commended for the tour that they ran in Japan. The experience has enlightened and energised me to intensify the lean efforts within our organisation. The tour was packed full of knowledge building as well as relationship building with other participants all whilst experiencing a cultural treat…
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The one week Lean Japan Tour not only validates ‘how lean can make business sense’ but also provides the opportunity to learn and share with professionals across different industries.
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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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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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