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.



Doha, Qatar
A very valuable and well-organized experience. Getting good access to factories where TPS and lean manufacturing are used as well as the instruction from experienced instructors made this a very worthwhile experience. Participants should leave well equipped to train others as well as conduct kaizen practices themselves.
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Auckland, New Zealand
First of all I would like to offer an absolute gesture of gratitude to the Shinka Management team – Paul, Ichi, Kaji Sensei, and especially Eri who often went out of her way to make sure everything ran smoothly and we had a great time. In my opinion the organization of the whole tour was…
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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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Sydney, New South Wales, Australia
I attended the Shinka Management / Ai Group / JMAC Lean Japan Study Tour in 2010 – outstanding, highly recommended. (I don’t have this much fun when I go on holiday.) To see the cultural home of Lean Manufacturing is an experience you will never forget. Ride on a bullet train, walk the factory floor…
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Riyadh, Saudi Arabia
The thing about the Lean Japan Tour by Shinka Management is that it’s not focused only on production efficiency, but also involves the lean way of managing people & reducing waste as a path to improving an organization’s quality & efficiency. We had the chance to visit different plants, and the privilege of meeting sensei…
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Rancagua, O'Higgins, Chile
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 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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