Exhibition booths: 54

Komei Seisakusho Co., Ltd. Koumei Seisakusho

Representative Director
Tetsushi Kanemura

Main products

Bronze castings (materials such as CAC406, CAC902, and CAC906)
Water supply valves and fittings, castings for fire pumps, ball taps, castings for power supply, etc.

Business content

Komei Seisakusho Co., Ltd., since its founding in 1947, has leveraged its long-cultivated copper alloy casting technology to provide cast products that meet the diverse needs of various industries and fields. The company offers a complete integrated production system, from casting to machining, inspection, and assembly.

Komei Seisakusho Co., Ltd. Koumei Seisakusho

Representative Director
Tetsushi Kanemura

会社の写真

Product and Technology Introduction

High-quality copper alloy products manufactured using an integrated casting system.

Casting process

Manufacturing sites where foundry technicians play an active role

Robots used for quality stabilization

Product and Technology Introduction

Bronze casting business

High-quality products are produced through skilled craftsmanship and comprehensive facilities.

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Rapid design of complex shapes

We can meet our customers' needs.

Leveraging our expertise in casting technology (primarily six types of bronze castings and lead-free castings), we enable high-mix, low-volume production. We provide prompt service from quotation to prototype.
 
By utilizing 3D CAD and 3D printers, we can quickly create prototypes and handle even complex shapes.

Towards improving customer satisfaction

Complete equipment to guarantee high quality

During casting, test pieces are taken simultaneously with the finished product to perform mechanical performance tests (tensile and elongation) and component analysis. Furthermore, all parts in contact with water undergo submersion testing, resulting in a highly reliable product reputation within the industry.
 
We have a variety of testing equipment, including emission spectrometers, precision universal testers, and 3D measuring instruments, to guarantee high quality. Transfer-type services are also available.

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Factories and people that produce high quality

We provide reliable, high-quality products from certified factories.

Komei Seisakusho is certified to JIS, ISO9001, and ISO14001 standards, and is registered as a JWWA inspection and quality certified factory.
I am also a member of the Japan Foundry Association and the Japan Foundry Engineering Society, and I participate in the technical committees that formulate their standards.
 
The foundry business is where the skills and experience of craftsmen come into play. Komei Seisakusho employs staff members who have received the Osaka Prefecture Outstanding Skills Award "Naniwa Master Craftsman" and those who are certified as "Foundry Technicians" by the Japan Foundry Association.

A production system that can meet market needs

A variety of 3D printing machines are installed.

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Automated mass production type

(1) Green mold horizontally split frameless molding machine (line molding machine)
 
Automated mass production type
Castable product dimensions: Φ230 x 200L
Castable weight: Approximately 12 kg/piece

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Semi-automatic small-lot type

(2) Sand molding disc 3D printer
 
Semi-automatic small-lot type
Castable product dimensions: Φ80 × 200L
Castable weight: Approximately 5 kg/piece

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Manual Special Type

(3) F1 molding machine (single-engine molding machine)
 
Manual Special Type
Castable product dimensions: Φ90 × 200L
Castable weight: Approximately 5 kg/piece

Various machining equipment that enables integrated casting processes

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Necessary machining is also performed in-house.

Copper alloys are materials with excellent pressure resistance, corrosion resistance, wear resistance, workability, and antibacterial properties.
 
Aiming to create products that make the most of the characteristics of the materials, we manufacture them using CNC lathes and other machining equipment to meet our customers' needs.

A leading water supplier that provides safe and reliable water.

Used in 520 regions throughout Japan

Since its establishment in 1947, Komei Seisakusho has been producing water supply equipment such as fittings and stopcocks used to supply water from water pipes laid in roads to individual homes. The usage conditions for water supply equipment vary depending on the region, such as whether it is cold or warm, and whether it is a plain or mountainous area. Therefore, the equipment used differs from one municipality to another. In other words, the ability to manufacture on a made-to-order basis is crucial. Naturally, it is essential to be able to handle high-mix, low-volume production, but the company has built an integrated system from design to casting, machining, assembly, and inspection, enabling them to provide water supply equipment tailored to each region. As a result, they have obtained administrative permits in over 520 regions throughout Japan.

Recycling temporary pipes that would otherwise have had to be discarded.

In response to growing environmental awareness, one of the company's distinguishing features is its "Reuse System," an environmentally friendly recycling system. When replacing water pipes without shutting off the water supply, temporary pipes are used during construction. With conventional methods, these temporary pipes were discarded after the replacement. The company's Reuse System allows these pipes to be reused multiple times. "Temporary pipes are also a valuable resource. We thought about how we could reuse them," says President Tokiyoshi Kanemura. This system involves taking used temporary pipes back to the factory, cleaning, sterilizing, and inspecting them for reuse. By making temporary pipes usable only when and for the required period, the company has solved the waste problem and reduced costs. Furthermore, temporary pipes that have reached the end of their lifespan are crushed and pelletized, and reborn as marker stakes and buried marker sheets.
This reuse system has steadily gained recognition, receiving the "NBK Grand Prize" from the Kansai Business Council in 2004, the "Osaka Frontier Award" in 2005, and the "JNB Grand Prize - Excellence Award" from the Japan New Business Council in 2006, and being adopted in the Kanto region, including Tokyo, Chiba, and Saitama.

Using inspection equipment that even the waterworks bureau doesn't possess

The company has already earned a high reputation in various fields, but it spares no effort in maintaining its high quality. It attaches QR codes to all products and thoroughly manages product inventory, while also possessing plasma emission spectrometers, emission spectrometers, and precision universal testing machines, and making full use of inspection equipment to ensure thorough quality control.
Recently, as part of expanding its business areas, the company has begun working on disaster prevention projects. To prepare for emergencies such as earthquakes, it has already installed emergency water taps that connect to emergency water tanks in parks and other locations, supporting local residents by providing access to drinking water.
"What is needed changes with the times. Therefore, it is important to adapt to these changes. Our company has expanded its business from water supply to disaster prevention, but our core focus will remain on water. This determination to be second to none in this field is the origin of Osaka's manufacturing. Our company aims to be a 'small giant,' a one-of-a-kind company in the water field," the president said with conviction.

Main business activities

Manufacturing and sales of water supply fixtures, water taps, complete water supply equipment sets, PP joint wrenches, temporary piping materials "Reuse System", emergency water taps, individual meter units, ball-type shut-off valves, etc.

Company profile

Company name

Komei Seisakusho Co., Ltd.

address

1-4-20 Techno Stage, Izumi City, Osaka Prefecture 594-1144

representative

Tetsushi Kanemura

Founding year/Establishment year

1947 / 1967

telephone number

0725-51-3000

FAX number

0725-51-3100

Company website

https://www.komei-ss.co.jp

capital

20,000,000 yen

Takumi by Hanjo Osaka Frontier Award (2005)
Patents obtained, design rights obtained, ISO 9001 certification obtained, ISO 14001 certification obtained