Top Message
While taking over the thought of our predecessors, also will continue challenge to new things.
Hamanaka Chain Mfg. Co. Ltd was established in 1936 at the Himeji city, Hyogo prefecture, in where the famous world heritage and National Treasure Himeji Castle is located.
Himeji is the major production area of chains in Japan, which makes up 70% of the total in the country. This is closely related to the Himeji castle indeed. At the time when the castle was still under construction, a huge amount of "Matsuhara Nail" was needed, and it led to the massive production and development of forging skills, and thus the foundation of today.
Since our establishment, we specialize in the production of anchor chain cables, mooring buoys, and stud link/studless offshore chain cables. We weathered serval storms and hard times, and every time we became stronger as one team. We believe that our history is filled with hard work and wisdom from our predecessors. We introduced the first flash butt welding machine from Sweden to Asia and manufactured the first flash butt welding chain in Japan. Besides, we are devoted to new developments such as steels for anchor chains, overseas offshore business, and chains for offshore wind power. We always aim to have new breakthroughs.
Based on the sound foundation built by our predecessors, we would like to continue to be devoted to satisfying our customers, developing new items, improving production efficiency, reducing burden to our environment and uniting our society.
At the time in our establishment there was a saying goes "chain is the last production of lives" (cutting the anchor chain under terrible weather and let the ship drift, the ship may sink and it is linked to all lives in the ship). We will definitely remember this origin of ours to provide safe and secured items, to create top world standard chain and receive new challenges.
Corporate Philosophy
Hamanaka Chain Mfg. Co. Ltd has the following corporate mission, heads for our 100th anniversary and then more enormous breakthroughs on the higher levels.
- Pursue high standard items and service for the satisfaction of customers.
- Provide a satisfying and safe working environment for all associates and their families to continue to grow.
- All associates work with a clear goal, continue to learn, and grow.
- All associates work to contribute to society, and experience the happiness from it.
- Utilize the geographical differences in different areas as positive energy for development.
- Improve and accept new challenges together with the time.
Hamanaka Chain Mfg. Co., Ltd.
President and Representative Director:
Go Hamanaka
Company Profile
Offices
Shirahama Plant
Aboshi Office / Plant
Tokyo office
Address | Shin-kokusai Bidg. 825, 4-1, Marunouchi 3 cho-me,Chiyoda-ku,Tokyo 100-0005,Japan![]() |
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TEL / FAX | TEL: +81-(0)3-3213-8681 / FAX: +81-(0)3-3211-7619 |
Hamanaka International, Inc.(USA)
Address | P.O. Box 19629, Houston, Texas 77224, U.S.A. |
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TEL | TEL: +1-281-493-9696 |
History
1942 | Factory established, start of anchor chain production |
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1950 | Became a factory certified by the Lloyd's register |
1952 | Tokyo office established. The factory receives JIS approval |
1957 | Start of supply of flash butt welded chains for the first time in the country |
1973 | K4 chains delivered |
1986 | DNV K4 certification |
1992 | API Quality Regulation certification |
1996 | Acquired ISO 9001 |
2006 | Acquired ISO 14001 |
2007 | ABS R5 certification |
2008 | DNV R5 certification |
2012 | Supply of chains to the Fukushima Floating Offshore Wind Farm Demonstration Project |
2013 | Acquired OHSAS 18001 |
2015 | R6 development |
2016 | Certified as the "Hyogo Only One Company" |
2017 | Ministry of Economy, Trade and Industry approved as a regional future traction company |
2020 | Acquired ISO45001 |
Group Companies
Hamanaka Nut Co., Ltd.
TEL: +81-(0)79-245-1741
FAX: +81-(0)79-245-6604
- Manufacturing and sales of nuts, bolts, washers, hot forged parts, building hardware, etc. and related business
Himeji Ecotec Co., Ltd.
TEL: +81-(0)79-245-3332
- Air quality measurement, environmental measurement certification business
- Measurements of exhaust gas, dioxins, noise levels
- Management of power plant condenser tubules (contamination measurements, formation of anticorrosive film)
- Sales and construction of cleaning systems for thin pipes in heat exchangers
- Surveys on birds (birds of prey and common birds)
- Surveys on attached organisms and jellyfish
- Biological damage control operations for seawater facilities
Geartech Co., Ltd.
TEL:+81-(0)79-247-0113
- Design and manufacture of various types gears, polishing of gear teeth
Sessile Research Corporation
Management System
The quality assurance system, environmental management system, occupational health and safety system at Hamanaka Chain Mfg. Co., Ltd. are recognized by the Classification Society and by partners worldwide.
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ISO9001
Quality
(DNV) -
ISO14001
Environment
(DNV) -
ISO45001
Health & Safety
(DNV) -
QA System
Quality
(ABS) -
Spec Q1
Quality
(API) -
QA System
Quality
(Aramco)
Manufacturing approval
-
American Bureau of
Shipping (ABS) -
Bureau Veritas
(BV) -
China Corporation
Register of Shipping
(CR) -
Det Norske Veritas
(DNV) -
Korean Register of
Shipping (KR) -
Lloyd's Register of
Shipping (LR) -
Nippon Kaiji Kyokai
(NK)
Other standards
American Petroleum Institute (API)
Norwegian Maritime Directorate (NMD)