Published in the Osaka Prefectural Department of Commerce, Industry and Labor booklet "Osaka's Energetic! Manufacturing Companies."
宏栄スプリング工業
World-class handmade springs that can only be produced by artisans. A great leap from space to the ocean floor!!
○ One-of-a-kind custom springs created by the skills and know-how of craftsmen
Koei Spring Industry is a specialized manufacturer of custom-made handmade springs. They produce a wide variety of products, including cold and hot compressed coil springs, extension coil springs, clock springs, leaf springs, and couplings. Their clients exceed 700 companies, ranging from aviation to shipbuilding and robotics. With craftsmanship that machines cannot replicate, they respond to any advanced requests from users.
"In particular, we possess the world's best know-how for large cylindrical coil springs that require hot processing. We are the only company in the world capable of manufacturing giant cylindrical coil springs with a wire diameter of over 100 millimeters," says President Irifune.
○ Thorough pursuit of high quality and precision, advancing to space with the spirit of Osaka
The company guarantees high quality through rigorous checks by craftsmen and state-of-the-art inspection equipment. They maintain a manualized management system with visual inspections at the time of material acceptance, checks at each stage, and the latest inspections.
Their dream is to be a company that lasts for 5 billion years.
At the core is a manufacturing style that can only be achieved because they are in Osaka. They will continue to uphold a management style characteristic of the people of Osaka.
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