A wide variety of precision springs used for products ranging from rocket valves to safety measure poles are listed. Technical documentation is also clearly provided.
Introducing the precision spring catalog from Koei Spring Industry Co., Ltd. The products created by Koei Spring Industry Co., Ltd. range from ultra-small springs with a wire diameter of 0.1mm to large springs weighing 450kg, totaling approximately 10,000 types annually. The common commitment that runs through all of them is "high precision." This is achieved through carefully selected materials, manufacturing know-how that relies not only on machines but also on skilled craftsmanship, and stringent quality standards that exceed JIS regulations. Our products, aimed at unparalleled precision, have earned the trust of many users. For more details, please contact us or download the catalog.
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【Main Products Listed】 ○ Wire Springs → Electronic Devices → Lighting Equipment → Home Appliances → Agricultural Machinery ○ Leaf Springs → Low Voltage Equipment → Chemical Machinery → Snap Pins ○ Disc Springs → Machine Tools → Steelmaking Machinery → Washers → Press Cushion Springs ● For more details, please contact us or download the catalog.
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Company information
While many spring manufacturers produce products for mass production, we are committed to creating reliable quality custom springs as a "specialized manufacturer of custom springs." Our technology not only produces unique products that only we can create, such as safety valve springs for chemical plants and power plants, and vibration springs for environmental plants, but it is also gaining attention from a wide range of industries, including the aerospace industry. Supporting this technology is the ultimate handmade craftsmanship backed by skilled techniques. For advanced and complex requests and challenges, trust the spring specialists at KOEI.