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Head office & Main Factory Nagano Factory Shizuoka Factory Nagano Factory Kyushu Factory Nagano no.2  Factory SEIHATSU(THAILAND)CO.,LTD

Head office and Main Factory

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4-33-5 Nishirokugo Ota-ku, Tokyo 144-0056
TEL: +81-3-3733-4681 FAX: +81-3-3735-1087

The head office and factory were moved to the present location in 1967. The factory is located in Ota-ward, center of the Keihin manufacturing district, which, as one of nation's leading manufacturing conglomerations, has an excellent reputation for both quality and technology.

The main factory plays an important role as the mother plant, supporting all our other factories.

Head office and Main Factory

>> Wires processing

Computer-controlled coiling machine
Computer-controlled
coiling machine

Automatic manufacture by computer-control coiling machine

  which forms wire springs with a wire diameter range of 0.10mm to 1.80mm: low temperature annealing.

>> Plates processing

Forming machine
Forming machine

Automatic manufacturing by progressive die press and forming machine forms flat springs with a plate thickness of 0.10mm to 0.40mm

 low temperature annealing.
 Austempering *bainitic treatment furnace.

*bainitic treatment is a superior hardening treatment to common hardening methods; in ductility and bend ability, with high sag resistance, low distortion and low effect in hydrogen embitterment.

>> Molds processing

3D CAD/CAM system designs Metal mold and WC/MC mold processes.
3D CAD/CAM system
3D CAD/CAM system
Wire Cut processing machine (WC)
Wire Cut processing machine (WC)
Machining Center (MC)
Machining Center (MC)

Nagano Factory

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411 Nakajohidaka, Nagano city, Nagano 381-3201
TEL: +81-26-267-2116   FAX: +81-26-267-2118

Nagano Factory is located 15km northeast from JR Nagano station in a greenfield environment, surrounded by forests and the grand north peaks of the western Japanese Alps. This is our main factory, established in 1970.
Nagano Factory

>> Wires processing

Computer-control coiling machine
Computer-control coiling machine

Automatic manufacture by computer-controlled coiling machine forms
wire springs with a wire diameter range of 0.60mm to 6.50mm

 and shapes formed wire springs, from 0.50mm to 4.50mm wire diameter,
 and rod bars: low temperature annealing.

>> Plates processing

150t link motion press Production line
150t link motion press
Production line

150t link motion press
and 60t/45t/25t press Production line with progressive die press.

 Flat spring thickness of plate from 0.10mm to 0.80mm
 can be formed: low temperature annealing.

Shaping of flat and wire springs by forming machine applies to flat springs with a plate thickness of 0.10mm to 0.40mm and to wire springs with a range of 1.00mm to 1.40mm wire diameter: low temperature annealing.


>> Plates and Wires processing

No oxidation heat-treatment furnace
No oxidation
heat-treatment furnace

Low temperature annealing for continuity function parts by no oxidation heat-treatment furnace is the optimal method for continuity function parts due to no oxide film on surface.

Nagano no.2 Factory

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3494 Takafu, ogawa-mura, Kamiminochi-gun,
Nagano 381-3302
TEL & FAX: +81-26-269-2235

Nagano no.2 Factory is located 4km northeast of the Nagano Factory and along the Olympic Road which leads to a well-known sightseeing area, Hakuba, a natural environment on a clean tributary of the Sai River. It was established in 2005 as a base for business expansion.

Nagano no.2 Factory

>> Wires processing

Close-up picture of computer-controlled coiling machine
Close-up picture of computer-controlled coiling machine
State-of-the-art computer-controlled coiling machine
State-of-the-art computer-controlled coiling machine
Automatic manufacture by the newest computer-controlled coiling machine shapes processing of wire springs and formed wire springs: low temperature annealing.

>> Assembly

Assembly
Assembly

Formed parts utilize coiling technology and assembly processing.

Production and assembly of commodities with our unique technology and welding with lead-free solder alloy.

Laser welder
Laser welder

Non-contact welding method produces less welding distortion to the processed material from thermal effects.

The ideal output-waveform made by real-time power feedback function provides high-quality and stable pulse welding.

Shizuoka Factory

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722 Nagasaki, Shimizu-ku, Shizuoka city,
Shizuoka 424-0065
TEL: +81-54-348-2202 FAX: +81-54-348-2422

Shizuoka Factory is located in the Tokai Industrial Area of Shimizu-ku, a land blessed with warm climate, abundant seafood and a spectacular view of Mt. Fuji to the east. The Factory was established in 1994 as a strategic base for flat spring and precision press products.

Shizuoka Factory

>> Plate processing

200t/150t/110t/80t servo link motion press Production line with progressive die press
200t/150t/110t/80t servo link motion press Production line with progressive die press

200t/150t/110t/80t servo link motion press
and 80t/60t press Production line with progressive die press.

Features of large flat spring forming and precision pressing:
- Thickness of flat spring from 0.10mm to 1.00mm
   (up to 2.60mm for Carbon tool steel, etc).
- Thickness of precision pressing from 0.03mm to 2.00mm.
80t to 35t Production line of a single die press
80t to 35t Production line of a single die press

80t to 35t Production line of a single die press

  Other processes are multiple spindles, tapping and caulking
  by high-spin riveting machine.
3D Coordinate Measuring Machine
3D Coordinate Measuring Machine

3D Coordinate Measuring Machine

  an instrument that can measure in three dimensions.
Non-contact 3D measuring system
Non-contact 3D measuring system

Non-contact 3D measuring system

  an automatic measuring instrument for non-contact dimensional measurement
  using image processing.
Assembly
Assembly

Assembly

  Various sensors such as our company-developed jig, laser, etc. are utilized
  for precision assembly operation.

Seihatsu Kyusyu Co., Ltd.

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4550-51 Omagari, Yoshinogari-cho, Kanzaki-gun,
Saga 842-0103
TEL: +81-952-51-1230 FAX: +81-952-51-1233

Seihatsu Kyusyu Co. Ltd., near "Yoshinogari ruins" historical town, is located in Saga Tobu Chukaku Industrial Park with very convenient access to road, rail and air infrastructures. The company was established in 2007 with the intention to expand sales channels to precision equipment companies and others in northern Kyusyu area and as a strategic base for production to utilize our skills and experience we gained so far.

Seihatsu Kyusyu Co., Ltd.

>> Wires processing

Computer-controlled coiling machine
Computer-controlled coiling machine

Automatic manufacture by computer-controlled coiling machine forms wire springs with a wire diameter of 0.40mm to 2.00mm and makes low temperature heat treatment

>> Plate processing

150t Servo press machine
150t Servo press machine
200t double-crank Servo press machine which can set mold size to 1.850mm.
200t double-crank Servo press machine which can set mold size to 1.850mm.

200t double-crank and 150t/80t Servo
Press and 80t press Production line
with progressive die press.

35t press performs a single die pressing.

Flat spring thickness of plate from 0.20mm to 1.40mm and precision pressing can be formed, and low temperature heat treatment is performed.
Design and manufacture of mold of flat spring and precision press
Wire Cut processing machine (WC):
Design and manufacture of mold of
flat spring and precision press
Non-contact 3D measuring system
Non-contact 3D measuring system
 
Washer: cleaning process by state-of-the-art fully automatic washer.
Washer:
cleaning process by state-of-the-art fully automatic washer.
Assembly: Spot and assembly of precision pressing parts.
Assembly:
Spot and assembly of precision
pressing parts.
 

SEIHATSU(THAILAND)CO., Ltd.

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700/765 Moo.1, Amata Nakorn Industrial Estate (Phase 8)
T. Phanthong, A. Phanthong, Chonburi 20160 Thailand
TEL: +66-38-079947-50 FAX: +66-38-079946

SEIHATSU THAILAND is located in Amata Nakorn Industrial Estate, which has excellent transport links. It is located 57 kilometers southeast of Bangkok, 42 kilometers from Suvarnabhumi Bangkok International Airport, 40 kilometers from Laem Chabang Port, and 96 kilometers from Map Ta Phut Industrial Port. It has been a global base for foreign markets since its establishment in 2010.

SEIHATSU(THAILAND)CO.,LTD

>> Wires processing

Computer-controlled coiling machine
Computer-controlled
coiling machine

Automatic manufacture by computer-controlled low temperature treatment coiling machine forms wire springs with a wire diameter range of 0.40mm to 1.50mm.

>> Plate processing

60t progressive die press/80t Servo press machine
60t progressive die press/80t Servo press machine

80t servo press and 60t press Production line with progressive die press.

Both flat spring thickness of plate from 0.20mm to 0.60mm and precision pressing parts can be formed: low temperature heat treatment.

Production control system
Production control system
Torque/Load measuring instruments.
Torque/Load measuring instruments.
 
Machine tools
Machine tools
Projectors in QC (Quality Control) room
Projectors in
QC (Quality Control) room
 

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