We have established world-class quality.
On March 20, 2003, Suehiro obtained ISO 9001 certification, an international standard, for all of its manufacturing items at the headquarters factory (including precision metal parts manufacturing, design, development, and production of FRP shafts and pipes) through certification by LRQA Limited.
Reasons for Being Chosen
The true value of "excessive quality" can only be realized once you use it.
“This level of precision may not be necessary for this application…”
This is a common evaluation we hear for Suehiro products.
However, whether it’s truly excessive quality can only be realized once you use it. For example, the central shaft of precision machinery, no matter how high-precision it is initially, will gradually deform over time, and after a few years, the machine’s performance will clearly decline compared to when it was new.
However, Suehiro’s shafts maintain excellent shape retention, minimizing the effects of aging and supporting the machine’s reliable function over the long term.
The quality of Suehiro products: Unyielding, unchanged.
After one year of use, the difference becomes clear. This is why Suehiro products are overwhelmingly trusted by users worldwide, with the strong preference for “Suehiro shafts.”
In order to maintain the quality that our customers experience upon receiving the product, Suehiro Industrial is meticulous about its packaging methods. For products that require precision, we create boxes tailored to the quantity and length, ensuring minimal space, binding by bundles, and special packaging for export to maintain quality after shipping. Additionally, the management of anti-rust solutions, which protect against the enemy of iron—rust—has been systematized, and we implement consistent quality control from materials to delivery.
Point.01
A Straightforward Company, Straightforward Products.
If you were to describe Suehiro Kogyo in one word, it would be “a straightforward company.”
Many of Suehiro Kogyo’s flagship products, such as roller shafts and brush cutter components, require straightness, meaning they must be perfectly straight.
Through continuous refinement of our unique technology, we have achieved a straightness of 0.05 to 0.1mm per 1000mm, even for long shafts. This is the result that defines both the company and products of Suehiro Kogyo today.
Thanks to your support, we have earned the reputation of being “Suehiro, the company of technology” over many years.
Suehiro-brand products are actively used in various fields that require high precision, such as the glass substrate transport shafts for LCD factories, drive shafts and outer pipes for brush cutters, which have a high market share both domestically and internationally. These products have earned the trust of our customers.
We believe that our ability to create such straight products, continuously pursuing straightness, is the result of Suehiro Kogyo’s commitment to always being a “straight company” in terms of quality and technology.
From our dedication to special steels as materials, to Japan’s traditional manufacturing spirit that constantly strives for higher precision, and the well-equipped facilities that support the production of high-precision products, Suehiro Kogyo will continue to deliver “straight” products and will always remain “straight” in the future.
Point.02
Over 60 years of continuously refining the 'Suehiro Quality.'
Suehiro Industries was founded in 1964, making it a company with a long history of over 60 years as of 2025. During this period, Japan has experienced significant changes and turning points, and it has also been a history of pursuing the quality required in each era.
One principle that we have consistently adhered to is being MADE IN JAPAN, and staying true to Japan’s manufacturing spirit by never compromising on quality or technology.
While the trend of seeking overseas manufacturing bases to reduce costs is becoming more prominent, we believe that the strength of our products, such as brush cutter parts, which hold a high market share both domestically and internationally, is the result of our unwavering commitment to high quality.
Recently, there has been a movement towards reshoring in the manufacturing industry, driven by advantages in flexible production capacity and delivery. However, Suehiro Industries, both in the past and present, will continue to create products that leverage the benefits and strengths of manufacturing in Japan.
Point.03
Manufacturing that contributes to society.
At the core of our manufacturing spirit, which strives to create something new and better, is the desire for the things we produce to be of value to society and benefit many people. The idea of how we can create things that help others and bring happiness has been with Suehiro Industries since its founding. Suehiro-branded products solve problems in various sectors of society and contribute to enhancing people’s lives.
One of our main products, the shaft for brush cutters, directly relates to quality through its straightness, as any distortion or deflection in the parts causes vibrations. Among professionals who use brush cutters, there has been concern about ‘white finger disease,’ a condition caused by excessive exposure to machine vibrations.
Suehiro Industries has successfully developed and manufactured shafts with enhanced straightness to minimize vibrations in brush cutters.