- Telephone number: +81-294-76-2535
- FAX: +81-294-76-2537
- Website
- Basic Info
- Equipment
- Technology & Products
- Map / HQ
Products, Expertise & Unique Technical Info
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Manufacturing category info
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Combined lathe machining（ Development and production of prototype/Small-scale production / NC machining ） |
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Small-size prototype manufacturing（ Development and production of prototype/Small-scale production / Prototype processing ） |
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Stainless steel（ Development and production of prototype/Small-scale production / Machining ） |
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Aluminum alloy（ Development and production of prototype/Small-scale production / Machining ） |
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Iron（ Development and production of prototype/Small-scale production / Machining ） |
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Handles microfabrication（ Development and production of prototype/Small-scale production / Machining ） |
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NC lathe machining（ Development and production of prototype/Small-scale production / NC machining ） |
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Company info
| Company name | Hiroki Seiki Seisakusho Co., Ltd (Kanasago Factory) | Website URL | https://hiroki.sub.jp/ |
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| Street address |
Hitachiota-shi Ibaraki Japan
[See map] |
Person in charge | Hiroyuki Shinohara |
| Telephone number | +81-294-76-2535 | Fax number | +81-294-76-2537 |
| Capital | 5,000,000 JPY | Employees | 40 |
| Annual sales | Unregister | EMIDAS Member Number | 78829 |
| Type of manufacturing | Audio-video equipment / Electronic parts / Medical equipment | ||
| Main 3 products |
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PR message
Our company handle everything from prototypes to mass production.
We specialize in NC automatic lathe machining of parts up to φ38mm.
We process materials such as iron, stainless steel, brass, and aluminum, and are RoHS compliant.
(SGD400, SUM, SCM415, SCM435, S45CF, SUS420F, SUS303, SUS304, SUS316, SUS416F, SUS430F, C3602, C3604, A2011, A2017, A5056, POM, etc.)
We offer short delivery times and high precision, and can handle everything from prototypes to small lots and mass production.
We can process sizes from φ1 to φ38, with lengths up to 200mm.
Business Hours
8:00 AM - 5:00 PM
For inquiries outside of business hours, please contact us by fax or email.
Please call us ff there is urgent inquiry.
Most recent update：2026-02-12
Manufacturing category info
| Large | Medium | Small |
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| Development and production of prototype/Small-scale production | Machining | General-purpose lathe machining Deep hole drilling Rolling Iron Stainless steel Aluminum alloy Copper alloy Nickel alloy Molybdenum alloy Automatic lathe Bench lathe machining Lathe machining (resin) Handles microfabrication |
| Development and production of prototype/Small-scale production | NC machining | NC lathe machining Combined lathe machining |
| Development and production of prototype/Small-scale production | Electrical discharge machine | Micro hole machining |
| Development and production of prototype/Small-scale production | Grinding processing | Cylindrical grinding Centerless grinding |
| Development and production of prototype/Small-scale production | Prototype processing | Small-size prototype manufacturing |
| Surface treatment | Plating/Chemical conversion treatment | Chromate (general) Nickel (rack) Gold/Silver plating Chromium (rack) Alumite (anode oxidation) Acid pickling Aldine treatment (aluminum chromate) Electroless nickel (rack) Baking (hydrogen embrittling) Trivalent Chromate (barrel plating) Iron Brass Black oxide finish Colored alumite Unichromate (white) Black chromate (black/green) |
| Surface treatment | Heat treatment | Quenching High frequency quenching Carburized quenching Salt bath soft nitriding (tufftriding) Nitridation |
| Parts manufacturing | Machinery part | Gear manufacturing Valve manufacturing Pressure container manufacturing Connection parts manufacturing Optical parts manufacturing Shaft and roller manufacturing Measurement devices manufacturing |
| Parts manufacturing | Electrical part | Connector manufacturing Other electrical part manufacturing Switch manufacturing |
