ULTRA-PRECISION&MECHATROMATION Seibu

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True to our slogan of “Pursuit of Ultra Precision and Mechatromation®(Mechatronics + Automation),” Seibu Electric & Machinery is a mechatronics maker that opens up new paths to tomorrow through our wide array of technologies, including logistics material handling systems, industrial machines, electric discharge machine (EDM), and machine tools.
We are always ready to take on new challenges, and we want to take the initiative in providing products that meet our customers’ high standards.
We want to contribute widely to the world through our technology, quality,and our unique creative abilities.
At Seibu, this is the passion behind our work.


Company name SEIBU ELECTRIC&MACHINERY CO.,LTD.


Capital 2,658,400,000 yen


Established February 1939 (Founded:Jan.1927)


Employees 405


Main banker ・Bank of Tokyo-Mitsubishi UFJ ・Bank of Fukuoka
・ Mizuho Corporate Bank ・NISHI-NIPPON CITY BANK
・Mizuho Trust & Banking ・Mitsubishi UFJ Trust and Banking


Officer Chairperson/ Kazunari Yoshizumi
President/ Kaoru Kimura
Executive Director / Keishirou Miyaji
Managing Director / Yoshimasa Fujioka
Director / Yasuhiro Kitani
Director / Shinya Nakazato
Director / Kouichi Saisyo
Director / Yasuhiko Mizota
Standing Auditors / Akira Hiratsuka
Auditors / Masazumi Konishi
Auditors / Masao Kitou


Career Seibu Electric was established in 1927 by taking over the operations of the Kyushu Factory of Toho Electric, which served as a repair factory for Toho Electric (currently Kyushu Electric Power Co., Inc.). Starting out in the repair and manufacture of electrical devices and electric meters, we restructured into our current organization in 1939, and in June 1945, we moved our headquarters to its current location in Koga city. Since then, we have overcome numerous obstacles, and through tireless dedication to product development and improvement, we have expanded our operations from the manufacturing of coal mine electrical machinery to our diverse product lineups today.

In 1986, we adopted our current company name and became listed on the Fukuoka Stock Exchange. In addition, we joined the Osaka Securities Exchange in 1991 and the Tokyo Stock Exchange in 2006.

Our products contribute to higher productivity, streamlined logistics, higher efficiency, energy-savings, and automation in a wide array of fields, including automobiles, electrical equipment, precision machines, dies, petrochemistry, foodstuffs, civil engineering and construction, shipbuilding, and more, enabling us to develop a loyal customer base in Japan and abroad. Through cutting-edge technology and unrivaled quality, we will continue to build greater trust with our customers.

1927 Established as "Seibu Electric" at Hie in Fukuoka city with the start of manufacturing and repair of electrical apparatus.


1939 Reorganized as Seibu Electric MFG. Co., Ltd. capitalized at 180,000 yen.


1942 Another factory was set up at Koga for the purpose of manufacturing the apparantus for mining.


1945 The head office was moved to Koga, and Hie factory was closed.


1954 Started manufacturing and marketing valve actuator.


1959 Started manufacturing machine tools(especially lathe).


1964 Domestic production of large-sized automatic lathe succeeded, and recognized publicly by Ministry of International Trade and Industry.


1965 Commemoration prize was awarded for the development of small-sized EDM(Electrical Discharge Machine)and high-speed precision EDM.


1967 The first automated warehouse was completed.


1970 Succeeded in domestic production of hypoid pinion gear cutting machine, and recognized by newspaper publishing companies as one of the 10 great new products.


1972 Developed CNC wire cut EDM for the first time in the world.


1973 Seiden-kosan Co., Ltd. was established for diversified business.


1976 High precision small-sized NC lathe(brand name "SNC")was developed.


1978 Technical development of valve (actuator)for atomic energy power plant. Started exporting SNC to West Germany and U.S.A, and started exporting wire EDM to West Germany.


1981 Started exporting wire EDM to U.S.A.


1982 Seibu original DIO(direct input output)system went on the market.


1983 Developed NC lead lathe.


1986 Prize of physical distribution was awarded for high speed automatic picking system.


1986 The company name was changed to Seibu Electric & Machinery Co., Ltd.


1986 Developed Ultra-precision NC Lathe SUP-200L for the purpose of spherical machining.


1986 Listed on the Fukuoka Stock Exchange.


1987 Tokyo Service Station(show room)was completed.


1990 New office was completed.


1991 Listed on Osaka Stock Exchange. Capital increased \2,658,400,000. Submerged type wire EDM was developed.


1991 Granted Korean company the technique of valve control(actuator).


1992 Picking system(Merge-veyor)was completed.


1993 Logistic center for frozen products(frozen food)was completed.


1994 A Grand Prize of Japan Logistic System Association was awarded.


1995 Actuator Division obtained ISO9001 certification.


1995 High-speed auto wire feeding device(AWF-3)for wire EDM was completed.


1995 Seibu Techno Service Inc.(the current Seibu Hitech Co., Ltd.)was established.


1998 Precision Machinery Division obtained ISO9001 certification.


1999 Material Handling Division obtained ISO9001 certification.


2002 High-speed C type stacker crane was completed.High precision small-sized NC lathe SNC-20F, ultra high-precision small-sized NC lathe SNC-20HPISP were completed.


2002 High-speed EE Sorter and automated warehouse RIO-S(roll-in roll-out type)were developed, and the topic prize 2002 for distribution machinery was awarded.


2003 Pin rack type actuator for gate(manual auto)was developed.


2003 Submerged type wire EDM M500S, M350S, M750S were developed.


2003 Industrial Machine Division obtained Profibus(communication standard)certification.


2004 Developed accumulation system by stack tray.


2004 Gate Master(Web monitoring system)was developed.


2005 Developed Semflex V series and Semflex LP series.


2006 Developed hige-precision freeform grinding machine (SFG-28)


2006 Seibu Paint Co.,Ltd. (a consolidated subsidiay) was established for the purpose of painting operation of Seibu Products.


2006 Listed on Tokyo Stock Exchange.


2007 Built new headquarters building and new factory.


2009 Withdrew listing on Osaka Securities Exchange for consolidating stock transactions.
Developed assort boomerang system.
Developed automated system for vault filled with urns.
Developed large-size chain gate driver.
Developed high-precision wire EDM (MM750S).


2010 Developed Semflex® A series.
Developed ultra-high-precision wire EDM (SuperMM50A).

Electric Actuator

Control the penstock opening and closing by servo drive.
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 >> Specifications


Muiti-turn type intelligent valve actuator.
 >> Customer's Advantages
 >> Specifications


Part-turn type intelligent valve actuator.
 >> Customer's Advantages
 >> Specifications
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