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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Kalgoorlie, WA, Australia
This tour was very well thought out—a busy, fast-paced week that provided a strong range of learning and practical application of the Toyota Production System. The program was thoughtfully structured to apply knowledge gained directly into the factory visits, while also offering valuable insight into Japanese business and culture. I absolutely loved the experience. Thank…
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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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Adelaide, South Australia, Australia
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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Cupertino, California, United States
Great experience delivered by passionate professionals. The training is well-balanced between real life factory/hospital visits (lean in action), theory (basic concepts, why it makes sense) and exercise (set up your own mini factory line using lean concepts). All of this where it started: Japan. Definitely recommend the tour for any professional looking for ways to…
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Madrid, Spain
The tour has given me the opportunity to understand in a practical way what I learned theoretically. I have checked that the theory is possible to put in practice. This has been the first time that I have felt the lean manufacturing philosophy first hand. Congratulations to the Shinka Team. The organisation has been perfect…
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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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