Thank you for visiting the Chokai Manufacturing Co., Ltd. website. We are a machine manufacturing company specializing in a variety of metal processing.
Founded in 1974, we have been working alongside Japan's rapid growth period in manufacturing. While constantly adapting to the times, we have been supported by many customers for over 40 years, specializing in machining, primarily NC lathe processing, as well as machining, manual lathe processing, and the manufacture of various precision parts. With a focus on manufacturing that looks 10 years into the future, we have expanded our factory and introduced the latest machinery, including Yamazaki Mazak's large multitasking machine (INTEGREX e-650H), a rare model installed in Japan, which enables simultaneous five-axis control machining.
Our main processing duties are a wide variety of metal products, ranging from automotive-related molds to parts for aviation, oil plants, and steel-related companies. Many of these products are simply "components," so looking at them alone can make it difficult to understand what they are. However, we take responsibility and pride in the work we undertake, and strive to meet our customers' needs. Even if you find yourself thinking, "I want this product, but I don't know to whom I should ask for," please contact us and we will address your request sincerely, leveraging our knowledge and experience to do our utmost.
We specialize in fast work, and even for rush orders, we will not compromise on quality. All of our employees work together every day to strive to be a company that meets our customers' expectations. If you need metal processing, please contact Chokai Manufacturing first.
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Company name |
Chokai Manufacturing Co., Ltd. |
|
Location |
1162-110 Nagarayama, Nagaramachi, Chosei-gun, Chiba |
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Telephone number |
+81 0475 35 4888 |
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Fax number |
+81 475 35 4959 |
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Established |
1974. April |
| Incorporated | 2017. April |
|
Capital |
JPY 3,000,000 |
|
CEO |
Koki Homma |
|
Employees |
7 members(as of April 2025) |
|
Business |
Metal processing using NC lathes and machining centers Manufacture and processing of various precision machine parts |
| 1974 | Founded as a small workshop in Ota-ku, Tokyo |
| 1976 |
Introduction of automatic NC lathe machine |
| 1988 |
Moved to Nagarayama in Chiba Pref. and expanded the manufactory |
| 1993 |
Introduction of two Techno Wasino NC lathes |
| 1997 |
Introduction of Okuma Machining MC50VA |
| 2000 |
Built a new facility for further expansion of the site at the current place in the same town Introduction of Okuma LB300 and Okuma LB250T |
| 2008 |
Introduction of Mazak multi-tasking machine INTEGREX e-650H |
| 2016 |
Introduction of CAD/CAM software and simultaneous 5-axis control system |
| 2017 |
Incorporated as a joint-stock company |
| 2020 |
Introduction of Mazak multi-tasking machine INTEGREX e-1060V |
| 2022 |
Built a new facility of the same size on the premises and expanded production capacity |
東京からおよそ1時間
内房線五井駅から20分、外房線から30分圏内にある、豊かな緑に囲まれた工場です
株式会社 鳥海製作所
[市原事業所]
〒297-0234
千葉県長生郡長柄町長柄山1162-110
Fax:0475-35-4959
<営業時間> 8:30~17:30
<休日> 土・日・祝日
※営業時間外や休日でも、在社中は対応いたします。お急ぎの場合はまずお電話ください!
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