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.

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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The fact that you can go past all the books and see the Toyota Production System in action first hand is fantastic. It is not sold in a complicated form by those involved but rather the opposite. The training room was found to be hands on and simple allowing us to touch and feel examples…
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I recently had the opportunity to participate in the Lean Japan Tour by Shinka Management, and it was an exceptional experience. The tour is meticulously designed for a concise 7-day itinerary, providing deep and practical insights into Lean Manufacturing. The blend of informative sessions and real-world observations made the learning process both engaging and highly…
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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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