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Latest update: 27/04/2017 14:19:05

Shinkou Kinzoku Co., Ltd.

We supply products from cast iron covers for sewage and waterworks manholes to aluminum parts for automobiles.

Our company manufactures cast iron and aluminum products and also produces molds. We constantly make use of more than 100 partner companies in addition to our own factories. Our iron casting products are used as industrial machine parts for robots, machine tools, construction machines, agricultural machines, rolling stock, pumps, and motors. They are also used as iron manhole covers and vehicle stoppers, or as frying pans and barbeque pots in the home. We achieve high-quality precision casting of aluminum casting products with surfaces and dimensional accuracy equivalent to die casting. Our automobile part products are used for engines and other power systems and also for fuel systems.


Other presentation

[Company strength]
Our company excels at handling all processes from mold production to development, trial manufacturing, and mass production. This is our advantage for high-mix low-volume production in a short period of time. We change the production pattern of our automatic molding line about 60 to 80 times a day to satisfy small-lot production orders for cast iron parts. We make use of self-hardening characteristics to manufacture cast iron and aluminum products for trial manufacturing. We design and manufacture products based on plans optimized by means of casting analysis simulation analysis to suppress the occurrence of defects in first-time products.

[Business description]
Our core products are industrial cast products for automobiles, robots, construction machines, and pumps, and also iron covers for sewage and waterworks manholes. We make use of our own specific casting technology to manufacture and sell cast iron and aluminum products. Our field of business covers a wide range from trial manufacturing and development to high-mix low-volume manufacturing and mass production.

Iron and aluminum casting part manufacturing

[Strength of products/technologies]
We use sand molds to achieve high-quality precision casting for aluminum cast products with surfaces and dimensional accuracy equivalent to die casting. Vacuum degassing treatment (HVC) of cast iron improves the molten viscosity enough to manufacture thin-wall cast products. This treatment reduces shrinkage cavities and increases yields. We provide quick turnarounds in trial manufacturing by using 3D printers for laminated sand molds.

[Representative's message]
Our core business activities cover from development and trial manufacturing of parts for automobiles and robots, high-mix low-volume production for quick supply, and mass production of covers for small manholes. Our business outside Japan so far has involved satisfying procurement orders for our iron casting products received from China, Korea, and Thailand. Our company is now promoting overseas expansion of our manhole business mainly to the ASEAN region. We will also expand our business by simultaneously promoting overseas exports and local site development to create synergy in our group. 

[Company structure for market development/overseas expansion]
Our sales staff provide meticulous support for new customers in all regions. We have six salespersons at our head office (Hiroshima City) and three at the Chubu sales office (Nagoya City). Our staff from the production technology and quality assurance departments visit customers with our sales staff for technical meetings to solve customer issues.

[Awards and media coverage]
Commendation by the Chugoku Bureau of Economy, Trade and Industry as a excellent business operator for energy management, and so on (February 2015).

Shin-Hiroshima TV, "Sodattano Company" (March 15, 2015); Nihon Keizai Shimbun, "Sankai Niyama (Chugoku Region)" (March 26, 2015).

ISO 9001 and ISO 14000 certification.

[Joint research and development]
Manufacturing Eutectic Graphite Cast Iron and Nodular Graphite Cast Iron by the Decompressed Ladle Degassing of Molten Cast Iron (Japanese Patent No. 3275069).
Patent No. 3769628 "Manufacturing Ultra-Thin High-Silica Cast Iron and Ultra-Thin High-Alloy Cast Iron by the Decompressed Ladle Degassing Method (Japanese Patent No. 3769628).

[Main Clients / Business History (domestic)]
Mazda (trial manufacturing of cast iron and aluminum parts, ongoing); Yamaha Motor (trial manufacturing and mass production of aluminum parts for Lexus LFA engines, until 2012, and mass production of cast iron parts for shock absorber systems, ongoing); Fujikoshi (trial manufacturing and mass production of cast iron and aluminum parts for robots, ongoing); Kawasaki Heavy Industries (trial manufacturing and mass production of cast iron and aluminum parts for robots, ongoing); and KOBELCO Construction Machines (trial manufacturing and mass production of cast iron parts for speed reducers, ongoing).

[Main Clients / Business History (overseas)]
Sales of cast iron ashtrays as novelty products to a company in Thailand.

This company is recommended by the following support organizations.

Chugoku Head Office, SMRJ