Precision Processing Products
State-of-the-art high precision technology realizes high yields.
We manufacture processed materials from the phase of melting, including material development. We also process parts using these materials. In particular, we pursue cost minimization through integrated manufacturing, which includes processing of precision rough shape materials by cold forging using difficult-to-process materials from cutting to heat treatment. We provide high quality, high accuracy parts to satisfy our customers.
Our strengths in precision processed products
With our processing and development technologies developed from our expertise in special steel manufacturing and material forging with reference to the shape of each part before cutting, we can significantly reduce the total cost (by approx. 40–60% on average) by implementing NNS (Near Net Shape). In addition, to provide high quality products, we implement a strict quality control system, including dimension and appearance checks through image analysis inspections that employ cameras.
Process flow / Examples of product processing / Main equipment
Product Information
Cold- / Warm-Forged NNS products
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Material |
Manufacturing method |
Features |
Examples of product usage |
Usage |
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SUSXM7 |
After NNS forging with 400-t and 600-t transfer presses, we perform vacuum and controlled atmospheric heat treatment. |
We perform Near Net Shaping (NNS) with cold/warm multistage pressing to reduce total costs. |
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Fuel injection parts
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Cold- / Warm-forged & Machined products
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Material |
Manufacturing method |
Features |
Examples of product usage |
Usage |
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SUSXM7 |
We perform machining with the aforementioned method plus CNC lathe, etc. |
To maximize the material properties, we perform NNS with multistage pressing along with heat treatment and cutting. |
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Fuel injection parts High pressure pump parts EPS parts
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Machined products
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Material |
Manufacturing method |
Features |
Examples of product usage |
Usage |
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High Ni-based SUS |
After rough processing of round, square, or profile materials, we perform vacuum heat treatment. Important parts are precision finished. |
Cutting process for difficult-to-cut materials
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Ultrasonic motor parts |
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SUS316L |
After rough processing of round, square, or profile materials, we perform vacuum heat treatment. Important parts are precision finished. |
Cutting of high cleanliness materials (stainless steel with a low level of inclusions or impurities) with high complexity and precision requirements |
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Semiconductor parts |
Processed composite products
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Material |
Manufacturing method |
Features |
Examples of product usage |
Usage |
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Ni Permalloy |
We use closed die forged products and plate materials that are punched, bent, and etched after vacuum heat treatment. Special processing is also performed, such as laminating or welding. |
We use our special processing technology for processed composite products. |
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Solenoid valve parts |
Contact Us
Tohoku Steel Co., Ltd.
23 Nishigaoka, Murata, Murata-machi, Shibata-gun, Miyagi,
989-1393 Japan
On special steel materials and precision processing products (Please inquire to our office nearest your area.)
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On heat treatment
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Special alloys / Industrial instrumentation
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Company Information / Recruitment / IR, etc.
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