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.



Riyadh, Saudi Arabia
During my bachelor’s degree I studied TPS and lean extensively but having the theoretical knowledge is very different to actually seeing it and getting the chance to implement it in the practical center. I have enjoyed my time during the tour and learned a lot about how TPS is actually implemented. The tour was very…
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Irvine, California, United States
I attended Shinka Management’s Lean Japan Tour and it was an incredible experience. The content was highly informative and practical, offering deep insights into lean culture and principles and their real-world applications. The organisation of the program was excellent, ensuring a seamless and engaging learning experience. I’d highly recommend this tour to anyone looking to…
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Riyadh, Saudi Arabia
Wonderful! I truly loved how we got a chance to see multiple tiers of the Toyota supply chain, and learned the true definition of some buzz words related to TPS. Getting a chance to see it all up-close was impactful.
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Bowhill, South Australia, Australia
A great mix of Japanese Business Etiquette, site visits show-casing lean principles, Japanese Culture and networking with the other members of the group. Both Ben & Paul were professional yet relaxed and friendly. Their relationships with key personnel in strategic lean businesses is impressive and their ability to translate quickly & accurately minimised the language…
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Sydney, New South Wales, Australia
Had the pleasure to accompany Ben and clients on the 2007 Lean Japan Tour. I had worked with many Japanese, ASEAN, UK and US firms and as such have participated in benchmarking assignments and tours of their operations. Some involved attending and presenting at various strategy, productivity and quality management conferences. In that context, I…
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Kuching, Sarawak, Malaysia
Excellent, from preparing the tour group on do’s and don’ts to guidance on what to watch out for every step of the way. Cannot recommend this enough if you are looking to learn how to resolve issues, and want to understand the lean approach from philosophy to theory to practice. Thank you very much, Paul,…
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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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