IIDZKA SEISAKUSHO CO.,LTD.
Most recent update: 2025-04-09
PR message
We mainly manufacture important safety parts for seat belts and airbags, and parts that require precision such as parts for engines.
By making full use of precision cold forging technology, we offer stable mass-produce products with complicated shapes with high quality.
Please feel free to contact us for estimation.
-Please contact us for production from the prototype stage-
We can manufacture prototype by combining cold forging and cutting.
There are cases to manufacture faster and cheaper than cutting-only processing.
By utilizing the long experience and knowledge of mass production, we also can make proposals of prototype stage with an eye on mass production.
[iiDZKA's Strength]
We handle every process from manufacturing design to mold design, prototype, prototype mass production, and mass production in-house.
We are fully equipped with quality control and quality assurance system to realize high quality mass production products in a short delivery time.
[In-house mold design/manufacturing]
We handle everything from mold design to manufacturing using mold manufacturing special-purpose equipment.
We respond to the diverse needs of our customers, such as products with complex shapes.
In addition, we will respond quickly to design changes and process improvements.
[Manufacturing base]
Hari Factory: 767 Tsugebaba-cho, Nara-shi, Nara Prefecture
Kagoshima Factory: 3043-8 Hisasue, Kamou-cho, Aira-shi, Kagoshima Prefecture
We have two factories that ensure the same production line.
Since there are two plants, development of multiple projects can be performed at the same time, and efficient development and prototype support are possible by decentralizing development (design change) man-hours and coordinating between plants.
[Gear shape automotive parts made by cold forging only. We handle from prototype development to mass production]
Material: Iron
Industry: Automobiles (automotive parts)
Features: This is an example of machined parts (gear shape) of important safety parts by press working and cutting.
We are a professional in automotive parts manufacturing and cold forging manufacturing.
We can handle complicated shapes too. Please feel free to contact us.
[Construction method conversion from welding to metal caulking, patented high-strength cold forging]
Usage: Automotive parts (seat belt parts)
Material: SWCH15K
In this product, two different parts were joined by welding, but the joining was performed by cold forging. By this method, the strength of the joint is increased. Mass production is now possible with automation by manufacturing with a transfer device.
We ship 10 million units a year to the world.
We are a professional in automotive parts manufacturing and cold forging manufacturing.
We can handle complicated shapes too. Please feel free to contact us for estimation.
Overseas shipping is possible.
・Production at 2 plants in Japan:
Kansai (Nara Prefecture) ・ Kyushu (Kagoshima Prefecture)
[Cold forging, cutting, mass production, from development to mass production]
Material: Iron
Industry: Automobiles (airbag parts)
Features: This is an example of the machined part of important safety parts by press working and cutting.
Production area: Kansai (Nara), Kyushu (Kagoshima)
We are a professional in automotive parts manufacturing and cold forging manufacturing.
We can handle complicated shapes too. Please feel free to contact us.
[Cold forging, cutting, construction machine parts, from trial production to mass production]
Material: Iron
Industry: Construction Machinery Parts (Valve Parts)
Features: This is an example of the processing part of press processing and cutting processing.
Production area: Kansai (Nara) Kyushu (Kagoshima)
We are a professional in automotive parts manufacturing and cold forging manufacturing.
We can handle complicated shapes too. Please feel free to contact us.
[Cold forging non-cutting AW-7075]
Material: Aluminum (AW-7075)
Industry: Automobiles (seat belt parts)
Features: This is an example of the processed part of important safety parts by press working.
Production area: Kansai (Nara), Kyushu (Kagoshima)
We are a professional in automotive parts manufacturing and cold forging manufacturing.
We can handle complicated shapes too. Please feel free to contact us.
[Stainless steel cold forging difficult-to-process material SUS316L high-precision engine parts]
We challenged to cold forging a difficult material, stainless steel.
This is new shape which has a weight reduction of 62% compared to the conventional product, and succeeded in downsizing and weight reduction.
Industry: Automobiles (engine parts)
Features: Cold forging of stainless steel (SUS316L)
Factories: Production at 2 bases in Japan, Kansai (Nara) and Kyushu (Kagoshima)
Overseas shipping is possible.
We are a professional in automotive parts manufacturing and cold forging manufacturing.
We can handle complicated shapes too. Please feel free to contact us.
[Cold forging, mass production, non-cutting, blank]
Material: Iron
Industry: Automobiles (airbag parts)
Features: This is an example of the machined part of important safety parts by press working and cutting.
Production area: Kansai (Nara) Kyushu (Kagoshima)
Overseas shipping is possible.
We are a professional in automotive parts manufacturing and cold forging manufacturing.
We can handle complicated shapes too. Please feel free to contact us.
[Non-cutting cold forging of SUS304 (stainless steel) for automotive parts]
Material: SUS304 (stainless steel)
Industry: Automotive parts
Material size: Φ20 x 40 mm
Features: It is a processing part of a product that composed only of cold forging.
[What is cold forging]
There are three main types of forging
"hot forging" that heats the material to about 1200 °C for processing
"warm forging" that heats the material to about 600 °C to 800 °C,
"Cold forging" that processes under normal temperature. Cold forging is characterized by high dimensional accuracy and beautiful surface compared to other forging methods.
Benefit:
✔ Great dimensional accuracy
✔ Excellent strength
✔ Available for mass production
✔ Material loss can be reduced compared to cutting
✔ Cost reduction
We are a professional in automotive parts manufacturing and cold forging manufacturing.
We can handle complicated shapes too. Please feel free to contact us.
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Cold forging （ Mass production / Forging ） |
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| Company name | IIDZKA SEISAKUSHO CO.,LTD. | Website URL | https://www.iidzka.com/en/ |
|---|---|---|---|
| Street address |
Yamatotakada-shi Nara Japan
[See map] |
Person in charge | Sales Department |
| Telephone number | Log in to display | Fax number | Log in to display |
| Capital | 20,000,000 JPY | Employees | 207 |
| Annual sales | 3,400,000,000 JPY | EMIDAS Member Number | 21558 |
| Type of manufacturing | Industrial machinery / Transportation equipment | ||
| Main 3 products |
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| Large | Medium | Small |
|---|---|---|
| Designing | Mold designing | Forging die designing Progressive die designing (light electrical) Progressive die designing (auto) |
| Designing | Simulation | 3D modeling Forging Press Cutting |
| Die manufacturing | Press die | Designing Manufacturing Die set machining Transfer press die Below 60 t 60 - 300 t Over 300 t |
| Mass production | Metal press | Drawing Bending Iron Transfer press (80 - 200 t) Transfer press (200 - 500 t) Single press (80 - 200 t) Single press (200 - 500 t) Single press (500 t and over) |
| Mass production | Forging | Cold forging Iron Aluminum Below 500 g |
| Mass production | Grinding processing | NC plane grinding NC cylindrical grinding Form grinding Thread grinding Gear grinding |
| Surface treatment | Other surface treatment | Other physical vapor deposition methods (PVD) Coating |
| Parts manufacturing | Machinery part | Gear manufacturing Valve manufacturing |
