Kyoei Alloy Casting Co., Ltd. has been manufacturing bronze castings (gunmetal) with excellent corrosion resistance and pressure resistance since its founding.
Through the uncompromising skills of craftsmen who battle the flames and their commitment to meticulous manufacturing, we provide "even better products."
- TOP
- Visiting and inspecting the permanent exhibition hall
- List of Exhibiting Companies
- Kyoei Alloy Casting Co., Ltd.
Exhibition booths: 136
Kyoei Alloy Casting Co., Ltd. Kyoei Gokinchuzo
Representative Director
Akinobu Hirokawa
Main products
Bronze valve
Bronze level gauge
Bronze fire hydrant parts
Business content
Since our founding in 1949, we have expanded from casting copper alloys to handling all aspects of production in-house, from machining to assembly and inspection. Our main products, marine and land-based valves and water level gauges, are manufactured in factories certified by Lloyd's Register and DNV Register, and we are one of the few companies in the foundry industry to have obtained ISO 9001 and ISO 14001 certifications.
Product and Technology Introduction
From bronze casting to machining, assembly, and inspection.
Bronze castings with the motto "Better products"
"Mold filling" is the process in the molding workshop where molds and frames are used, and green sand is packed into them by hand and with tools to create the final shape. The foundry worker's skill shines through as they sense the condition of the sand with their eyes and touch, and assess the degree to which the sand is packed and the precision of the mold when it is removed.
[This is the origin of casting!]
⇒ "Pouring" involves pouring molten metal, heated to 1200 degrees Celsius in a melting furnace, into a mold. Once the material cools and hardens, "mold removal" is performed, where the sand mold is broken and the casting is removed.
⇒ The product is shot-blasted, using countless steel balls to remove any attached sand and polish the surface.
⇒ Remove any burrs or unwanted parts from the product and proceed to the finishing process.
⇒ Various cutting processes using machinery such as CNC lathes, machining centers, and general-purpose lathes.
⇒ After rigorous quality control including assembly and ATP testing, products are shipped with a smile.
Uncompromising high-quality manufacturing
Committed to creating products of even higher quality.
Kyoei Alloy Casting Co., Ltd. is a factory certified by LR (Lloyd's) and DNV (Norway) classification societies, manufacturing marine valves, and is also a JWWA (Japan Water Works Association) registered parts factory, manufacturing water supply valve parts, etc.
We have valve testing equipment and hydrostatic testing equipment, and we have implemented an inspection system aimed at achieving a zero defect rate.
We were early adopters of pollution control equipment, such as dust collection systems that take environmental considerations into account, and we have continued to improve quality, achieving simultaneous ISO 9001 and ISO 14001 certifications in 2017.
We will continue to provide safe, secure, and reliable products in the future.
Enriching lives with casting, the driving force of society.
Manufacturing is about developing people, and it contributes to society.
Cast iron products are present in every aspect of life and are indispensable for a safe, secure, and prosperous lifestyle. Kyoei Alloy Casting is promoting business and technology transfer through the digitalization of manufacturing craftsmanship.
Furthermore, we view ourselves as a company that creates value for people's lives, and through our unique integrated production technology, from casting to machining, assembly, and inspection, we contribute to the development of foundational industries and to enriching people's lives.
Casting is not automated. Craftsmen adjust the amount of water according to the temperature and humidity to create sand molds, pour in the molten metal, and process each piece individually.
We cultivate individuals who are always committed to manufacturing responsibility and approach their work with that in mind.
Equipment information
| Equipment name | Abilities (table size, etc.) and features | Manufacturer | Number of units | |
|---|---|---|---|---|
| 1 | gas dissolution furnace | 400KG | 1 unit | |
| 2 | impregnation device | 1 unit | ||
| 3 | CNC Lathe | Mori Seiki | 6 units | |
| 4 | Machining center | Mori Seiki | 2 units | |
| 5 | 5 axis multifunction machine | NTX-2500 | Mori Seiki | 1 unit |
| 6 | General-purpose lathe | Mori Seiki | 5 units | |
| 7 | General-purpose milling cutter | Enshu | 1 unit | |
| 8 | coordinate measuring machine | Keyence | 1 unit | |
| 9 | 3D CAD | SolidWorks | 2 units |
Company profile
- Company name
-
Kyoei Alloy Casting Co., Ltd.
- address
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5-9 Yayoi-cho, Higashi-Osaka City
- representative
-
Akinobu Hirokawa
- Founding year/Establishment year
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1949/1952
- telephone number
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072-984-2588
- FAX number
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072-984-2589
- Company website
-
President Interview (2022)https://note.com/mobio_osaka/n/ndf27d8663533）
- capital
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10,000,000 yen
ISO9001:2015 ISO14001:2015
LR (Lloyd's) and DNV (Norwegian) certified shipyards
Japan Water Works Association (Public Interest Incorporated Association) Parts Registered Factory