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.



Shanghai, China
I wholeheartedly recommend the Japan Lean Tour. The program is exceptionally well-organized, combining rigorous classroom training with hands-on practice on real factory floors, and factory visits that progress smartly from service centers through Tier 3 to Tier 2 manufacturing — offering a full picture of lean excellence across the value chain. Cultural experiences like the…
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Jerome, Idaho, United States
I was very impressed with the professionalism and preparedness of the Shinka team. The support both before and during the tour was fantastic. It was the right mix of culture and personal development. There were lots of learnings I will take with me.
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Western Sydney, New South Wales, Australia
Wow. What a great experience not just from a learning perspective but also a great cultural experience as well. From the start the group came together really well. It was a perfect mix of practical and theory, and to gain an insight into the Toyota Production System and see it in action at all the…
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Quito, Pichincha, Ecuador
I really liked the Lean Japan Tour, since it combines theoretical training, workshops and visits to different companies. It is different to see firsthand how the different methodologies work and take the time to understand that it is part of the organizational culture. Thank you Shinka Management team. Now let’s get to work…!!
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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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Göteborg, Sweden
I would like to give my deepest thanks for helping us end the executive program on a high note. This week has summarized TPS / VPS in a very practical and eye-opening manner. The lean journey has become real and exemplified through the many visits we have done. The coaching by Hattori Sensei, and by…
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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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