Electronics Device Division

Electronics Device Division

Electronic Device Division

Electronics Device Division

Our Electronic and Information Equipment division have ensured quantative expansion through processing our magnet wires. We have also expanded our fields from materials to downstream in order to create more high-value added products. We have accurately captured the trends of our users through secondary processing, and responded effectively to their needs through our technological development. By integrating our technologies of magnet wires, secondary processing, and application products, we aspire to further advance our skills and services.


◆ Motor Division

サーボDCモーター

We manufacture motors for factory and office automation under business consignment contract with major motor manufacturers. The process involved for servo DC motor section are shaft polishing, winding, armature stacking, commutator processing, motor assembly, and encoder assembly. The process involved in AC/DC fan motor section are stator/rotor processing, winding, blade assembly, and motor assembly. By incorporating our magnet wires we are able to offer fine quality, cost, and delivery that demonstrate cost cutting and flexibility in production, which we have been highly praised of.


◆ Coil Processing Division

VCMコイル

With our magnet wires, we manufacture actuator coils (VCM coils) that functions as a driver for the magnetic heads of hard disk drives (HDD). We also manufacture the plastic mold assembly which connects the arm and the actuator coils. Our coils and plastic mold assembly are incorporated into the HDD of various computer part manufacturers around the world. As the majority of our clients are based overseas, we have established a facility in Thailand specifically for VCM coil manufacturing. The facility has been in production since 1993.



◆ Starter Relay Division

スタ−タリレ−

We produce starting motors for diesel engines and operational relays under business consignment contract with major automobile manufacturers. Our magnet wires are processed into coils through our self-developed winding machine, which are then assembled with other parts and molded with the automatic casting machine that is also another development of ours.


◆ Engineering Division

Our Quality Control department and Production Engineering department are actively involved in supportingour production process through constant quality improvement and technological developments.

★ Equipments:
NC milling machine (Okuma & Howa 2R-NC)
            
Wire-electrical discharge machine (Mitsubishi Electric DWC90C)
            
Cylindrical grinding machine
             
(Kondo gloss450/ Minakuchi LGU45/ Seiko AUG25)
            
High speed lathe (Ookuma LS type)
            
High speed precision lathe (Hasegawa WHN-1)

*We offer sample productions of the above mentioned equipments.



   ■Timeline of our Technology & Production (Electronic Device Division)  
1983 April Established Information Equipment division, begin production
Begin secondary processing of magnet wires
1985 April Incorporated wiring factory into Hirane factory (2 story 990 sq. meters)
Manufacture stepping motor wiring assembly, FDD motor coil winding,
and servo motor control panel related products
1990 April Begin production of relays for in-car relay with our vacuum casting device
Manufacture universal ignition coils and diesel engine relays for
Sawafuji Denki under business consignment contract
Begin production of HDD VCM coil
December Hirane factory expands to 3 stories
Expanded/strengthens precision micro motor & coil secondary processing div.
Consolidate Information Equipment division to Hirane area
Launched Electronic Device division
1991 Manufacture VCM coils for overseas manufacturer
1992 Begin production of OMA for HDD
1994 March Received award of excellence at NT workshop hosted by Toyo Denso
September Developed and marketed stepping motor controller WMT-S200
December Received inquiry from Sanyo Denki to manufacture AC fan motor
1995 April Begin production of AC fan motor for Sanyo Denki under business
consignment contract
1996 April Begin manufacturing MC fan motors for Sanyo Denki for Intel
Established MC fan motor production system
July Transferred stepping motor production system to San-Ei Denki factory
November Begin production of BLDC fan motor
1997 March First factory completed, expand secondary processing production system
1998 Begin mechanical processing at our fourth factory
Implemented integrated manufacturing of AC fan motors
2000 May End production of MC fan motors
2001 January Begin production of DC servo motor for Sanyo Denki
2002 May Begin production of starter/alternator coils for Sawafuji Denki
2004 April Establish production engineering department and upgrade machinery
In-house production facility speeds up prototype production
July Electronic Devise div. begins production of edgewise coils (heater coils)
2006 January Produce 400 edgewise coils (heater coils) per month
2007 March Commended by Sawafuji Denki for our Quality Improvement division
2008 May Commended by Sanyo Denki for our production activity



SAN-EI electronics Toppage