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Latest update: 27/04/2017 14:02:58

Nakagawa Tekkousho Co., Ltd.

Machining of long products and processing of hard-to-cut materials for such fields as construction/civil engineering, shipbuilding and automobiles

We handle the machining of long products such as shafts, rolls and plates up to 14 m in length and 10 t in weight. We also handle the processing of difficult-to-cut materials including Inconel and super duplex stainless steel, for which there is high demand in state-of-the-art technology fields. We have exported products overseas, including the parts for 150 shale gas mining centrifugal separators in North America, pump shafts for desalination plants in the Middle and Near East, and winding shafts for ultra-high-speed elevators in a high-rise building in China. Our seismic isolation and control devices are installed in large-scale facilities in Japan, including Sharp’s Kameyama Plant and the Kabukiza Theater.

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[Company strength]
Facilities: Machinery capable of handling a maximum length of 14 m and maximum weight of 10 t
We have four lathes for long products exceeding 10 m, two five-face processing machines (bed length 7 m), two horizontal boring machines, an overhead traveling crane (15 t) and other facilities.
Technology and proposals: Micron-order processing making full use of our extensive knowledge and experience; VA proposals based on our research & development of tools for hard-to-cut materials in collaboration with industry, government and academia
Quality management: Construction of our original quality management system; cleared the requirement criteria for ISO 9001


[Business description]
We deliver high precision machined products and assemblies mainly in fields related to energy, environment, construction/civil engineering, shipbuilding, and automobiles.
Machining of long products: Including shafts, rolls and plates up to 14 m in length and 10 t in weight.
Processing of difficult-to-cut materials: Including Inconel and super duplex stainless steel, for which there is an increasing demand in state-of-the-art technology fields.
Integrated production and assembly: From VA proposals and material procurement to heat/surface treatment and assembly; non-stop products taking advantage of our corporate network.


[Industry]
Machining and manufacturing

[Strength of products/technologies]
High-precision processing of hard-to-cut long materials
Our pump shaft (super duplex stainless steel S21750) for a desalination plant exceeds 10 m in length and 30 in L/D ratio, in which distortion and deflection are likely to occur, and clears the swinging accuracy.
We process power generation turbine parts (Inconel IN-718) at a precision of 5 microns, which is much higher than the 1/100 mm or 10 micron precision requested by customers.
Our shale gas mining centrifugal separator parts (austenite stainless cast steel SCS14) achieve roundness and concentricity that enable rotation at 3,000 rpm. We also produce marine parts for the Ministry of Defense and the Japan Coast Guard, which require high precision and quality management.


[Representative's message]
Our goal is to be number one in the country in the processing of large size, long materials and hard-to-cut materials, with the key words “good faith + responsibility, technology and challenge”. To reach this goal, we promote the integration of know-how and further research & development. Following our certification as the “Ishikawa Prefecture Niche Top Enterprise Training Business (2012)”, we were selected for the “SME Monozukuri (Manufacturing) Subsidy” in 2013 and 2014. We intend to participate in exhibitions in major metropolitan areas and further strengthen our sales department. We will also be recruiting young engineers to ensure that we continue manufacturing products that contribute to safety and security.

[Company structure for market development/overseas expansion]
A veteran full-time employee with 25 years of experience handles technical inquiries. We opened a Tokyo office in April this year by reorganizing our sales engineering department. Our VA proposal system makes full use of our extensive knowledge and expertise as well as our tool research & development in collaboration with industry, government and academia. Our processing technology for hard-to-cut materials is handled mainly by the design development department established several years ago.




[Market share/Ranking]
We cannot calculate our market share and industry ranking since our high-precision products are used in a variety of fields and are made-to-order in small-volume lots. However, few companies can match our processing technology.



[Awards and media coverage]
[Awards]
Ishikawa Prefecture Niche Top Enterprise Training Business (2012)

[Media]
“Strengthening production of parts for shale gas mining equipment” (The Nikkei, November 10, 2012)
“Processing long steel material into a true circle” (The Yomiuri Shimbun, October 12, 2012)
Ishikawa Prefecture Industry Creation Support Organization magazine (2013)
Furusato (homeland) Ishikawa (Supplementary reader for high schools in Ishikawa Prefecture, 2009)


[Authorization/Certification]
KES Environmental Management System certification

[Joint research and development]
The Kanazawa Institute of Technology and Ishikawa Prefecture Industrial Experimental Station (Development of cutting tool suitable for hard-to-cut material processing for long and large products such as Inconel and super duplex stainless steel, and processing technology for achieving high precision (2012 to present)

[Main Clients / Business History (domestic)]
H&F Corp., Kamome Propeller Co., Ltd., Kubota Corp., Kobe Steel, Ltd., Komatsu Ltd., Daido Kogyo Co., Ltd., Pacific Steel Mfg. Co., Ltd., Tanabe Engineering Corp., Tomoe Engineering Co., Ltd., Torishima Pump Mfg. Co., Ltd., Nakashima Propeller Co., Ltd., Hitachi Industrial Equipment Systems Co., Ltd., Hitachi Automotive Systems Ltd., Hitachi Building Systems Co., Ltd., Mitsubishi Heavy Industries, Ltd., Ryoki Tool Co., Ltd., and other companies

This company is recommended by the following support organizations.

Hokuriku Head Office, SMRJ
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