Failed to register as Favorite Page
Failed to cancel as Favorite Page
This page is already registered as a Favorite Page
You can't add your company to your favorites.

Latest update: 30/11/2016 17:58:55

Tomihama Seiko Co., Ltd.

Our high-precision broaching technology allows us to handle irregular shapes, in addition to circles and rectangles. 

Our company manufactures cogwheels and precision metal parts mainly through broaching. We possess a unique small-diameter keyway broaching technology that led to our Keyman small-diameter broaching machine. Keyman can bore holes as small as diameter 5, and realizes high-precision machining while reducing the machining time. 

Main image

Other presentation

[Company strength]
Our flagship broaching technology was born from creative thinking, which was facilitated by the fact that we are a small-scale company. The same engineers who are in charge of machine development also conduct manufacturing. This is why they possess superb problem-solving abilities, which have made our broaching technology the best in Japan. Our small-diameter machining is our original technology with an original structure and original theory. We are a group of broaching experts, and we have realized a series of difficult machining steps that no other company can provide. Our deep understanding of mass-production broaching technologies for large and small items has helped us work with customers during their productization process on a long-term basis. We do this by providing consignment processing and other services for prototypes. 

[Business description]
Our company possesses high-precision broaching technology for keyways on cogwheels and pulleys, and we conduct manufacturing and consignment manufacturing of horizontal broaching machines. Many of our horizontal broaching machines are used for inside diameter serration, small diameter irregular broaching, and extremely small diameter keyway broaching. These broaching machines have been delivered to manufacturers in industries including automobiles, motors, pumps, cogwheels, and pulleys.


[Strength of products/technologies]
Our company possesses multiple patents on both machines and machining technologies, and we are familiar with various kinds of broaching technologies. We have internalized the entire manufacturing process for small-diameter keyway broaching technology. We developed an original technology that makes it possible to machine small holes (from diameter 5) and keys (from 1 mm). Our Keyman product was developed to provide high-precision machining at low cost. We make use of it to propose the best minimum machining method without involving conventional heavy machining tools.  

[Representative's message]
We are a small company, but we are striving to become the best broaching technology company in the field. We have earned our customers’ trust by overcoming a series of technical problems that major companies had found impossible to solve. Keyway broaching will remain a very important technology because of its safety and maintainability. We will continue our current focus on original technology so that it can be used by many more people. 

[Company structure for market development/overseas expansion]
We invite you to make use of our original, safe, cost-effective keyway broaching technology. We are one of the few companies that possess technologies covering the fields of machining tools, blade design, and machine manufacturing. You can count on us to solve your broaching issues.

[Awards and media coverage]
Education Minister’s Award (2005); Nikkan Kogyo Shimbun Manufacturing Innovation Award (2005); Yamanashi Industry Award (2011). 

Many newspapers including Nikkan Kogyo Shimbun and Nihon Butsuryu Shinbun, in addition to a technology information magazine, Tool Engineer (mentioned many times), and a number of others. 

New Partnerships (2007); Management Innovation Plan (2006); Yamanashi Prefecture New Business Pioneer (2009).

[Joint research and development]
Yamanashi Prefecture Fuji Industrial Technology Center: Verification of the precision of broaching.

[Factory (domestic)]

[Main Clients / Business History (domestic)]
Our machines have been shipped to THK, Yasukawa Motor, Teral, Harmonic Drive Systems, and Oriental Motor. We have other customers for consignment processing, such as Sankosha (transportation), THK, Kofu Ina Steel, and Kanie.

[Main Clients / Business History (overseas)]
All our customers are Japanese companies (there have been inquires, which we could not accept due to capacity problems).

[Exhibition History/Information]
We participate in Yamanashi Techno Messe & Multimedia Expo every year. Please contact us if you need information about other exhibitions. 

This company is recommended by the following support organizations.

Kanto Head Office, SMRJ

Similar Companies