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Latest update: 27/04/2017 14:15:03

Koiwai Co., Ltd.

3D printed trial-manufacture and mass-production casting parts

We manufacture and sell 3D printed trial-manufacture and mass-production casting parts. We handle various materials including aluminum, cast iron, cast steel, stainless steel, and highly heat-resistant alloys. We have many major domestic customers such as Toyota Motor Corporation, Nissan Motor Co., Ltd. and Yamaha Motor Co., Ltd. We also have a proven track record of transactions with BorgWarner Inc. in South Korea, Tata Motors Limited in India, etc. We also manufacture and sell products manufactured by laminating metal powder of titanium, cobalt chrome, aluminum, copper, etc. We have a sales base in Bangalore, India.


Other presentation

[Company strength]
We were the first company in Japan to provide cast products using 3D printing techniques. We are proud to be “the No. 1 laminated sand mold casting manufacturer in the Asia-Pacific region”, for facilities, technical capabilities, production ability and output. We have our headquarter factory and another one in Miyagi. We carry out trial manufacture, and research and development at the headquarter factory, and deal with mass-produced articles at the Miyagi factory. We are also promoting overseas development. We set up Koiwai India Private Limited in Bangalore, India in 2012, and established a business office. We obtained approval for our business innovation plan to further business development in June 2012.

[Business description]
We manufacture and sell the following 3D printed products. Trial-manufacture and mass-production casting parts (made of aluminum, cast iron, cast steel, stainless steel, highly heat-resistant alloys etc.), and 3D metal powder laminated products (titanium, cobalt chrome, aluminum, copper etc.). Our products play an active part in various industries such as the automobile industry and the medical care industry.

Manufacture and sale of trial-manufacture and mass-production casting parts, 3D metal powder laminated products

[Strength of products/technologies]
We make a sand mold directly from a design using a 3D laminated sand mold device “in which sand is baked and hardened” in the 3D laminated sand mold construction method. The labor required to make a cast has been halved as a result. There are various other merits including;
(1) Sand molds can be directly cast from three-dimensional CAD data. 
(2) Products can have complicated shapes which a wooden model cannot accommodate.
(3) High shaping speed and accuracy.
(4) Various models can be shaped at the same time.
(5) Sand molds can be produced with few man-hours and at low cost.

[Representative's message]
We employed a 3D laminating construction method in the casting industry in 2007. Japan acknowledged the value of this activity, and we accepted the invitation to develop entirely domestically produced 3D lamination devices and materials, which is a national project. We are now involved in the project planning as a representative of user companies. We also accompanied the Economy Minister, Mr. Miyazawa, to India as the only SME among the 25 major companies attending in April this year. We stated our expansion into India in front of concerned Japanese and Indian parties during dialogues between Japan and India. This shows that our business models are highly evaluated and greatly anticipated. We will aim at expansion of our business, utilizing these techniques both in Japan and overseas.   

[Company structure for market development/overseas expansion]
We also actively carry out overseas development. We established Koiwai India Private Limited in Bangarole, India and set up a business office in 2012. We plan to set up a local factory in 2016. 

[Market share/Ranking]
Casting of laminated sand molds: Our domestic share is about 75%.

[Awards and media coverage]

NHK’s Special program, The Nikkei, The Nikkei Business 
Daily, The Nikkan Kogyo Shimbun, The Yomiuri Shimbun, The Asahi Shimbun, The Sankei Shimbun, etc.

ISO 9001 Certification
Eco Stage Certification
Certification of “Projects Promoting Establishment of Business Facilities in Japan, Group C” of Ministry of Economy, Trade and Industry in the fiscal year 2011, etc.

[Joint research and development]
JP A 2014-113610 (Casted Product and Method for Manufacturing the Same)
JP A 2014-18835 (Chiller and Method for Casting the same), etc.

[Main Clients / Business History (domestic)]
Trial-manufacture sand mold castings delivered to: “Yamaha Motor Co., Ltd. Toyota Motor Corporation, Nissan Motor Co., Ltd., Fuji Heavy Industries Ltd., MAZDA Motor Corporation, Hino Motors, Ltd., IHI Corporation, Mitsubishi Heavy Industries, Ltd. (MHI), Hitachi Automotive Systems, Ltd., Komatsu Ltd., Toyota Industries Corporation, Hitachi Construction Machinery Co., Ltd., Isuzu Motors Limited, Daihatsu Motor Co., Ltd., SUZUKI MOTOR CORPORATION, Honda Motor Co., Ltd., Honeywell Japan Inc., BorgWarner Inc. MIKUNI CORP. etc.”Metal powder products delivered to: “Japan Aerospace eXploration Agency (JAXA), IHI Corporation, Mitsubishi Heavy Industries, Ltd. (MHI), Nabtesco Corporation, TOSHIBA CORPORATION, Mitsubishi Hitachi Power Systems, Ltd. Kawasaki Heavy Industries, Ltd., Mitsubishi Electric Corporation, NEC Corporation, Nikon Corporation, Canon Inc., AISIN AW CO., LTD. etc.”   

[Main Clients / Business History (overseas)]
Trial-manufacture of engine casting parts for Tata Motors Limited in India, and trial-manufacture castings of turbochargers for vehicles ordered by Honeywell in India, BorgWarner Inc. in South Korea and Keyyong Precision Co., Ltd in South Korea

This company is recommended by the following support organizations.

Kanto Head Office, SMRJ