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Latest update: 27/04/2017 14:17:56

Sakurai Seisakusho Co., Ltd.

We manufacture machining tools such as rotary milling machines, and offer part processing.

Our company provides processing services for automobile, motorcycle, and general-purpose machine parts, and we also manufacture and sell machine tools. Our part processing department mainly deals with relatively large parts such as engine parts and transmission parts, where high precision and high quality are prerequisites. The machine tool department provides comprehensive services from design to production and installation for all kinds of machining tools, from stand-alone machining tools to large line systems. Our main products include rotary milling machines, multi-spindle machines, and five-axis deburring centers. Our rotary milling machines are the only domestic Japanese products on the market, and our company name is well known as a brand. 


Other presentation

[Company strength]
Our company values using know-how in conducting proposal-based sales activities rather than simply selling things, and our products are widely used around the world as a result. Automobile-related industries will experience increasing demand and production in emerging countries, but they also face severe conditions in the domestic Japanese market in terms of both production volume and cost. We will focus on entering non-automobile fields, such as our self-developed five-axis machining tool, reinforce activities in other countries, mainly in Asia, and strive to be useful to our customers. 

[Business description]
Our company has two divisions: one handles part processing for automobiles, motorcycles, and general-purpose machines, and the other handles machine tool manufacturing and sales. Our operation sites include two plants in Hamamatsu City, as well as another production site in Vietnam and a sales office in Ohio, USA. Our parts processing department mainly deals with relatively large engine parts and transmission parts where high precision and high quality are prerequisites. The machine tool department provides comprehensive services from design to production and installation for all kinds of machining tools from stand-alone machining tools to large line systems. Their development and technology capabilities are highly valued by our customers. 

Transportation equipment manufacturing

[Strength of products/technologies]
We are a leading manufacturer with a global perspective. Our company will demonstrate advanced technology development capabilities to develop a better future. Our previous experience with mass-production parts includes automobile AT and transmission cases (8,000 units monthly), and general-purpose engine cylinder blocks and heads for an agricultural machinery manufacturer (4,000 units monthly). We also have experience producing motorbike cylinders (500 units monthly) and passenger car engine crank cases (4,000 units monthly). Our experience with non-mass production parts includes cases involving R&D products and prototype production. We have manufactured a V8 cylinder block for a racing car engine, as well as a CVT transmission case for R&D purposes. We have conducted machining testing for prototype parts when mass production was considered, and five-axis machining of metal aerospace parts.

[Representative's message]
In the information era it is necessary to view the entire world as a market from a global perspective to open the door to the future. We look at our volatile era as it is, and continue to launch high-value-added products through our advanced technology development capabilities. Our products incorporate flexible ideas, craftsmen’s skills, and our corporate identity as a user-first company. We will continue to evolve while helping society to develop through advanced precision part processing and machine tool development. 

[Company structure for market development/overseas expansion]
We actively promote overseas business using overseas sites. We conduct customer acquisition and sales activities targeting companies that visited our booth at the 27th Japan International Machine Tool Fair. Our company has developed a production technology website to gather and analyze access information to cultivate sales channels. These activities are conducted by dedicated sales staff within our organization.

[Market share/Ranking]
(1) Our rotary milling machine is the only Made-in-Japan product on the market, and our company name is well known as a brand.
(2) Our multi-spindle machines are unique products, and the only products of their kind in Japan. They are available in four types: a compact 45-degree type that enables replacement of the multi-spindle head, a vertical type, and a standard seven-head replaceable type.
(3) Our five-axis deburring center is the only product that can deburr even irregularly shaped works at high speed.
(4) Our double-head milling machine is also the only product in Japan that completes all processes at once.

[Awards and media coverage]
Hamamatsu City New Energy/Energy Conservation Top-Runner Award (2014).


ISO 9001 (September 1999); ISO 14001 (March 2001); JIS Q 9100 (November 2014).

[Joint research and development]
We possess no effective patents (our existing patents have expired). A joint patent application with Honda Motor and Asahi Diamond Industrial for a five-axis deburring center is pending. 

[Main Clients / Business History (domestic)]
Aisin AI; Aisin AW; Aisin Keikinzoku; Isuzu Motors; Kubota; Kofu Meidensha Electric Mfg.; Jatco; Suzuki Motor; Nidec; Fuji Heavy Industries; Honda Motor; Honda R&D; Honda Racing; Mitsubishi Heavy Industries; Yamaha Motor; Yanmar.

[Main Clients / Business History (overseas)]
Asian Honda Motor; General Electric Vietnam; Honda Vietnam; Sumitomo NACCO Materials Handling; Toyota Industrial Equipment Vietnam.

This company is recommended by the following support organizations.

Kanto Head Office, SMRJ