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  2. Machine elements and parts
  3. 三協製作所 本社事務所
Machine elements and parts
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三協製作所 本社事務所

EstablishmentJuly 1, 1974
capital5500Ten thousand
number of employees48
addressKanagawa/Tsuzuki-ku, Yokohama-shi/4th Floor, Hiramoto Building, 1-28-11 Nakagawa Chuo
phone045-532-4141
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last updated:Oct 24, 2025
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  • Products/Services(44)
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三協製作所 Company Overview

Composite materials such as carbon fiber reinforced plastics (CFRP) are "designable" materials! We respond to your needs with a one-stop service from analysis to manufacturing inspection.

Sankyo Seisakusho utilizes a wide range of materials, from general-purpose plastics to advanced composite materials represented by carbon fiber reinforced plastics (CFRP), various metals, and inorganic materials, along with manufacturing technologies cultivated over 45 years. We respond accurately to the diverse needs of our customers, from conventional parts used in industrial equipment to advanced high-functionality structures for aerospace, radio, and aviation equipment. The workflow for FRP structures (parts) is as follows: 'Concept drawing from the customer → Analysis → Design → Manufacturing → Inspection/Testing → Delivery.' For anything related to FRP, please feel free to contact our web window at t.morimoto@sankyo-ss.co.jp. We strive to respond within 24 hours. (Web contact: Suzuki)

Business Activities

We are engaged in the design, development, and manufacturing of electrical and mechanical components and structures for space and radio equipment, medical devices, and general industrial equipment, using advanced composite materials such as carbon fiber reinforced plastics, as well as hybrid structural materials made from general-purpose plastics and metal materials. We procure intermediate materials such as carbon fiber from fiber manufacturers and prepreg suppliers, and based on the customer's structural design, we proceed through the processes of analysis, manufacturing design, molding, machining, and assembly, delivering the final product to the specified delivery location after final inspection. In the case of composite materials, there are often aspects that cannot be confirmed during the final inspection, so we implement 4M (Man, Machine, Material, Method) management and process management (in-process inspection). Currently, we are limited to domestic sales, but we can prepare "non-applicability judgment documents" for customers' exports. Additionally, we now accept requests for analysis reports only as a second opinion. (Web contact: Suzuki)

Recommended information

"CFRP long material processing service" *Free helpful materials also provided.

"CFRP long material processing service" *Free helpful materials also provided.

We can process long items with a maximum size of 7m in length and 1m in diameter! We are also offering helpful materials that clearly explain the characteristics and properties of CFRP, as well as comparisons with various materials.

CFRP (Carbon Fiber Reinforced Plastic) is said to be a lightweight, strong, and corrosion-resistant advanced functional material. It possesses excellent mechanical properties and outstanding characteristics derived from its carbon content, making it widely used across various applications. Additionally, we have large-scale equipment that can handle the processing of long items measuring "7m in length and 1m in diameter." ★ We are currently offering a 'CFRP and Various Materials Property Comparison Table' that is useful during the design phase as a gift. ★ This includes explanations of the excellent features and properties of CFRP, as well as comparative materials such as GFRP, AFRP, and aluminum alloys. 【Included Materials (Partial Excerpt)】 ■ Overview of CFRP (Carbon Fiber Reinforced Plastics) ■ Classification and Characteristics of Carbon Fibers ■ High Vibration Damping CFRP Robot Hand * The materials can be viewed by clicking the "PDF Download" button below. * For inquiries such as quotes, please feel free to consult us through the "Contact Us" section.

Products/Services (44)

Sankyo Manufacturing Co., Ltd. Company Profile product image
Sankyo Manufacturing Co., Ltd. Company Profile
[Free Gift!] "FRP Q&A Collection" product image
[Free Gift!] "FRP Q&A Collection"
"CFRP long material processing service" *Free helpful materials also provided. product image
"CFRP long material processing service" *Free helpful materials also provided.
Technical booklet "Basic Knowledge of FRP 4" *Free download available product image
Technical booklet "Basic Knowledge of FRP 4" *Free download available

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catalog(21)

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Sankyo Manufacturing Co., Ltd. Company Profile

Sankyo Manufacturing Co., Ltd. Company Profile

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[Free Gift!] "FRP Q&A Collection"

[Free Gift!] "FRP Q&A Collection"

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Technical brochure "Basic Knowledge of FRP 4" *Free download available

Technical brochure "Basic Knowledge of FRP 4" *Free download available

TECHNICAL
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Technical booklet "Basic Knowledge of FRP 1" *Free download available

Technical booklet "Basic Knowledge of FRP 1" *Free download available

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news(6)

We are working on reducing CO2 emissions.

  • OTHER

Our company has set the goal of improving the environment and is continuously implementing it. As part of our internal activities, we have announced plans to reduce electricity consumption and the amount of industrial waste generated, and all employees are working together to reduce CO2 emissions.

Sep 27, 2022

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We will be exhibiting at "MEX Kanazawa 2019."

  • SEMINAR_EVENT

At the 57th Machine Industry Exhibition "MEX Kanazawa 2019" (held from May 16 to May 18), we will be exhibiting our CFRP (carbon fiber reinforced composite) products at the booth of Kanazawa Kiko Co., Ltd., a machine tool trading company from Ishikawa Prefecture. We look forward to your visit.

Mar 29, 2019

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We have renewed our website!

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Sankyo Seisakusho has renewed its website. We have organized the information to provide our customers with a more comfortable experience using the website. Thank you for your continued support.

Dec 07, 2018

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Detailed information

Company name 三協製作所 本社事務所
number of employees48
Contact addresspostalcode 224-0003 Kanagawa/ Tsuzuki-ku, Yokohama-shi/ 4th Floor, Hiramoto Building, 1-28-11 Nakagawa ChuoView on map TEL:045-532-4141 FAX:045-532-4172
Key Partners●Mitsubishi Chemical・NEC ●Toshiba・Hitachi・Mitsubishi Electric ●NEC・Japan Aircraft・Jamco ●Sanwa Kogyo・Showa Electric Wire & Cable・SHI・KHI・MHI・IHI ●Government agencies・Research institutions・University laboratories ●Overseas companies (via trading companies)
[Segment]  ◎Space/RF Equipment  ◎Aerospace Equipment  ◎Medical Equipment  ◎Measurement Equipment  ◎Industrial Equipment  ◎Audio Equipment    Structures and structural components, etc.
Business LocationsClick here for the list
Industry Machine elements and parts
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