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.



Flamatt, Switzerland
A very intensive and learning Lean Japan Study tour. Alternating with company tours, training session and feeling the Japanese culture. Experiencing the TPS live generated many new inputs and ideas for me. I can recommend it to anyone interested in Lean / Kaizen, but also to experts. It shows what culture is behind it and…
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Orange, California, United States
Outstanding lean tour hosted by Shinka Management. When researching lean tours in Japan, I wanted to choose the provider offering the most credible program – rich in technical depth and practical, hands-on learning. I’m happy to say this turned out to be a world-class experience that I highly recommend. The program combined expert training and…
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Quezon City, Manila, Philippines
My experience on the Shinka Management Lean Japan Tour was spectacular. Learning more about TQM and Lean Management in the country where almost all industries are implementing these approaches has been surreal. It was also a good experience witnessing these firsthand in the manufacturing industry and even more so in the healthcare industry. It is…
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Pforzheim, Germany
The Lean Japan Tour was the best lean management experience I have had. I wish I had done this earlier, so I could have done some things differently. One learns that some aspects of lean that one thought one knew, really have a different dimension to them. It helps to see lean management where it…
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Bikfaya, Lebanon
Life changing experience. The tour was extremely well prepared: 1. In terms of logistics and schedule, everything was organized to provide enough time for full day efficiency without putting too much physical or cognitive strain. 2. In terms of quality of information, the senseis’ knowledge is world-class level and they were more than willing to…
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Milton, New Zealand
If you have embarked on a lean journey The Lean Study Tour should be on your bucket list! It was inspiring to see the Toyota Production System in action as a management system, as well as the small improvements made day in and day out by dedicated and motivated teams all striving to continuously improve.…
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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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