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.



Taipei, Taiwan
Shinka Management staff were professional from interpretation, to detailed trip arrangements, to leading the factory tour and catalyzing the thinking and discussion.
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Sanaswadi, Maharashtra, India
I am deeply grateful to Shinka Management, and to Paul, Eri and Ichi, for an outstanding Lean Japan Tour experience. Their expertise and hospitality made the journey both educational and enjoyable. The insights gained from visiting world-class lean organizations were invaluable, and the dedication of the Shinka team to ensuring we absorbed practical knowledge was…
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Adelaide, SA, Australia
I recently completed the Lean Manufacturing Tour of Japan and can highly recommend it to anyone in manufacturing or looking to further their understanding of Lean principles. The tour was highly educational and provided me with a clear understanding of the short-, medium-, and long-term improvements I can implement to strengthen the business.
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Adelaide, South Australia, Australia
Participating in the Shinka Management Lean Japan Tour was a transformative experience. The tour offered a rare opportunity to witness world-class lean practices in action at leading Japanese organisations. From visiting Toyota’s manufacturing facilities to learning directly from lean practitioners, every moment was an invaluable learning experience. The insights gained into kaizen, waste reduction, and…
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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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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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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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