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Latest update: 06/12/2016 14:38:25

Sanwa Kizai Co., Ltd.

We develop products based on excellent digging technologies, which have also been proven at many difficult construction sites outside Japan.

We design and manufacture low-noise, low-vibration pile drivers, small-diameter pipe jacking machines, and various other industrial machines. We developed Earth Auger, Horizonger, and other products. Earth Auger has been used at many difficult construction sites outside Japan. Horizonger is a horizontal boring machine that enables horizontal digging and makes it possible to construct sewerage works by the tunnel method. We intend to extend our business to Southeast Asia from our subsidiary in China.

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[Company strength]
Our company was established in Nihonbashi, Tokyo in 1955. Our first business was to purchase and sell construction materials and machines. Our in-house development of a mortar pump and mixer in 1957 was a turning point, and initiated our history as a manufacturer. Our mainline product now is Earth Auger, which was used for the construction of the Tozai Subway Line in Tokyo in 1963. The enactment of the Noise Control Act in 1968 also helped Earth Auger spread quickly throughout Japan, mainly for subway construction, building foundations, and other urban development and improvement works. Earth Auger was also used to dig permafrost in Fairbanks, Alaska in 1974. It was used to dig tundra and construct a bridge for the Baikal-Amur Mainline in Tynda, Siberia, in what was then the Soviet Union, in 1975.

[Business description]
We design, manufacture, sell, and maintain various industrial machines. Our products include the following.
(1) Earth Auger low-noise, low-vibration pile driver. 
(2) Horizonger small-diameter pipe jacking machine. 
(3) Rock Doughnut Auger Machine (RODAM) large-diameter digging machine. 
(4) PM series mortar batcher plants. 
(5) Earth Net construction management machine. 


[Industry]
Industrial machine design, manufacturing, and sales

[Strength of products/technologies]
Earth Auger has also made achievements in many difficult construction works outside Japan. We developed our Horizonger horizontal boring machine by applying the vertical digging technology to the tunnel method. It has made it possible to construct sewerage works using the tunnel method. We also developed Enviliner to promote vinyl chloride tubing. We have advantages in product development using the digging know-how we have accumulated so far. We are also devoted to the development of software such as our construction management machine, which visualizes the quality of construction works.

[Representative's message]
Our company has perceived an impending crisis from stagnant market development in Japan and market globalization outside Japan. We established a subsidiary in Wujiang City (now Wujiang Ward), China with our sole investment in 2005 to overcome this sense of crisis. We will aggressively promote the application of our unique technologies accumulated in Japan with this subsidiary as our site for overseas marketing.

[Company structure for market development/overseas expansion]
We established Sanwa Kizai (Suzhou) Co., Ltd. (100% subsidiary of our company) in Jiangsu Province, China, in 2005. This company mainly manufactures and sells Earth Auger and continuous wall production machines that use the Trench cutting & Re-mixing Deep wall method (TRD) with domestic Chinese specifications. This company also procures parts and materials (cultivating outside suppliers) for Japan (the head office of our company). The product quality of the factory is now stable after nine years of production. We will extend our business on a full scale to Southeast Asia from our company’s subsidiary in Suzhou, China.

[Market share/Ranking]
Earth Auger: Top share in the Japanese market.

[Awards and media coverage]
[Awards]
Construction Technology Appraisal Award; 87NO-DIG Award; Award of the Architectural Institute of Japan; Technology Appraisal Award of the Construction Ministry; Encouragement Award of the Japan Construction Machinery and Construction Association; Japan Current (Kuroshio Current) Award of the Japan Mircotunneling Association.

[Media]
NSDD method and construction management machine: Nikkan Kogyo Shimbun and many other publications.
Surf Robo concrete floor finishing robot: NHK TV, "Today's Close-up;" Asahi Gakusei Shimbun.
MMW continuous wall production machine for housing: NHK TV, "Today's Close-up;" Chiba Factory NBC; NHK News.


[Authorization/Certification]
ISO-9001, ISO-14001.
Tokyo Metropolitan Business Innovation Plan approval (our business plan in China).


[Joint research and development]
Licensing of our Horizonger technology to James Hausen & Company, UK. Licensing of our promotion technology to Hsioung Yi Industrial, Taiwan. Licensing of our full turning technology to FUWA, China.
Technical cooperation with JR East, Takenaka Corporation, Taisei Corporation, Kajima Corporation, Penta-Ocean Construction, Toshiba, etc.


[Main Clients / Business History (domestic)]
Auger for Penta-Ocean Construction Group, and many others.

[Main Clients / Business History (overseas)]
Russian Federation (former Soviet Union), Southeast Asia, Middle and Near East, USA, Korea, China, etc.

This company is recommended by the following support organizations.

Kanto Head Office, SMRJ
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