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.

Shenzhen, Guangdong, China
I would like to thank the Shinka team. They have been doing very well since day one of the program notification. Their work is a demonstration of the lean principles of standard work and Plan, Do, Check and Action (PDCA). The Shinka team arranged factory visits to various tiers of the automotive industry and building…
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San Francisco, California, United States
Thank you, Paul Smith and Ben Sparrow, for hosting this amazing real time learning experience through visits to factories in Japan practicing Lean methodologies. This trip is something I will remember and take with me throughout my professional career and personal life.
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One of the best weeks of my life. It has changed the way I see my production facility forever!
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Toulouse, France
Amazing Tour. Great experience to see and share with Japanese managers. I learned a lot about their culture, their way to think, to work and to improve by themselves. Great moments during training and after work. Thanks a lot. We will return back home with a new eye and mindset.
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Hobart, Tasmania, Australia
Paul Smith and the team at Shinka Management, in particular Eri Dennis, did an incredible job planning and leading our tailored Japan Study Tour in March 2024. Our team of construction and training professionals learnt and more importantly experienced so much about lean management and Japanese construction, manufacturing and factory practices. Without the expertise and…
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Porto Alegre, Rio Grande do Sul, Brazil
My experience on the Lean Japan Tour: – High level of attention and kindness with all participants; – Quality of content in the classroom; – Knowledge and experience of senseis; – Experiments in the dojo; – High-quality company visits; – High-quality hotels, meals and transports.
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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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