ULTRA-PRECISION&MECHATROMATION Seibu

Company introductionGuide in Each OfficeElectric ActuatorElectric Discharge MachinePrecision LatheMaterial Handling






Over half a century since the establishment of the company,our company has continuously developed innovative products,which conform to a change in the industrial structure.
Our products have been widely used by society, and as a result we have accepted with great pride the name "Seibu of Technology".
Under the technical name, 'Pursuit of Ultra precision and Mechatromation', the company has now grown into a Synthetic Mechatronics Maker of Machine tools, Electric dischage machines,Material handling machines and Industrial machines under a new structure each section is converted into an 'Operation Division'
Since 1991, The company is striving to speed up the product's development, using the ideas of 'To adapt oneself to nature, while doing technical research'.
Furthermore, we are now continuing research to keep up to society's needs.
For example-added value-elevation, labor-saving and worker-unattendance.From now on, all sections will devote themselves entirely to the complete production for the satisfaction of the customers.
We hope to contribute to the development of society by the services, which we render.
Our motto being, 'Make my spirit a customer's spirit.'
To our Technological group which is continuing an incessant challenge, the company respectfully solicits your continual support.


Company name SEIBU ELECTRIC&MACHINERY CO.,LTD.


Capital 2,658,400,000 yen


Established February 1939 (Founded:Jan.1927)


Employees 426


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 President / Kazunari Yoshizumi
Executive Director/ Akira Tsubone
Managing Director / Kenji Uchino
Managing Director / Keishirou Miyaji
Director / Hidefumi Ohgushi
Director / Kaoru Kimura 
Director / Yoshimasa Fujioka
Director / Yasuhiro Kitani
Director / Shinya Nakazato
Standing Auditors / Akira Hiratsuka
Auditors / Yoshifumi Shimizu
Auditors / Masazumi Konishi


Career Seibu Electric, the predecessor of Seibu Electric Mfg. Co.,Ltd., was founded in 1927. Business started for the purpose of manufacturing and repairing electric apparatus and electric instrument. And it was reorganized as a stock company in 1939 and the head office was moved to Koga-machi of the present place in 1945. Thereafter, the company had expanded the business with untiring effort of development and improvement overcoming difficultiss.

The company name was changed form Seibu Electric Mfg.Co.,Ltd., To the present Seibu Electric & Machinery Co., Ltd., and the stocks were listed on Fukuoka Stock Exchange in 1986, and furthermore, the stocks were listed on Osaka Stock Exchange in 1991 as well.
our products have contributed to the improvement of productivity, rationalization of physical distribution, efficiency, and labor saving in various fields such as automobile, precision machinery, metal model, petrochemical industry, civil engineering and construction, shipbuilding, and so on.
Our products have gained great support not only from domestic customers but from overseas cutomers as well.

01.1927 Established as "Seibu Electric" at Hie in Fukuoka city with the start of manufacturing and repair of electrical apparatus.


02.1939 Reorganized as Seibu Electric MFG. Co., Ltd. capitalized at 180,000 yen.


12.1942 Another factory was set up at Koga for the purpose of manufacturing the apparantus for mining.


06.1945 The head office was moved to Koga, and Hie factory was closed.


12.1954 Started manufacturing and marketing valve actuator.


04.1959 Started manufacturing machine tools(especially lathe).


07.1964 Domestic production of large-sized automatic lathe succeeded, and recognized publicly by Ministry of International Trade and Industry.


04.1965 Commemoration prize was awarded for the development of small-sized EDM(Electrical Discharge Machine)and high-speed precision EDM.


01.1967 The first automated warehouse was completed.


01.1970 Succeeded in domestic production of hypoid pinion gear cutting machine, and recognized by newspaper publishing companies as one of the 10 great new products.


10.1972 Developed CNC wire cut EDM for the first time in the world.


10.1973 Seiden-kosan Co., Ltd. was established for diversified business.


06.1976 High precision small-sized NC lathe(brand name "SNC")was developed.


01.1978 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.


09.1981 Started exporting wire EDM to U.S.A.


07.1982 Seibu original DIO(direct input output)system went on the market.


10.1983 Developed NC lead lathe.


02.1986 Prize of physical distribution was awarded for high speed automatic picking system.


07.1986 The company name was changed to Seibu Electric & Machinery Co., Ltd.


10.1986 Developed Ultra-precision NC Lathe SUP-200L for the purpose of spherical machining.


12.1986 Listed on the Fukuoka Stock Exchange.


07.1987 Tokyo Service Station(show room)was completed.


05.1990 New office was completed.


02.1991 Listed on Osaka Stock Exchange. Capital increased \2,658,400,000. Submerged type wire EDM was developed.


03.1991 Granted Korean company the technique of valve control(actuator).


12.1992 Picking system(Merge-veyor)was completed.


03.1993 Logistic center for frozen products(frozen food)was completed.


09.1994 A Grand Prize of Japan Logistic System Association was awarded.


01.1995 Actuator Division obtained ISO9001 certification.


08.1995 High-speed auto wire feeding device(AWF-3)for wire EDM was completed.


09.1995 Seibu Techno Service Inc.(the current Seibu Hitech Co., Ltd.)was established.


01.1998 Precision Machinery Division obtained ISO9001 certification.


06.1999 Material Handling Division obtained ISO9001 certification.


04.2002 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.


10.2002 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.


01.2003 Pin rack type actuator for gate(manual auto)was developed.


04.2003 Submerged type wire EDM M500S, M350S, M750S were developed.


08.2003 Industrial Machine Division obtained Profibus(communication standard)certification.


03.2004 Developed accumulation system by stack tray.


09.2004 Gate Master(Web monitoring system)was developed.


05.2005 Developed Semflex V series and Semflex LP series.


03.2006 Developed hige-precision freeform grinding machine (SFG-28)


04.2006 Seibu Paint Co.,Ltd. (a consolidated subsidiay) was established for the purpose of painting operation of Seibu Products.


12.2006 Listed on Tokyo Stock Exchange.


01.2007 The new head office building was completed.

Electric Actuator

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


Muiti-turn type intelligent valve actuator.
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 >> Specifications


Part-turn type intelligent valve actuator.
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 >> Specifications
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