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Yamato Spring is a group of experts in springs, with a proven track record in the development and production of automotive components, as well as in computers and mobile phones. In "Fundamentals of Springs," we provide a clear explanation of spring classification from a professional perspective! The classification of springs that can meet quality requirements such as appropriate materials for different applications, heat resistance, and corrosion resistance is illustrated, summarizing the key points for spring selection. ★ The materials can be viewed immediately from "PDF Download"! For more details, please feel free to contact us.

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We will introduce the classification of springs based on their applications. The applications of springs are very broad, and their classification is not easy. However, once the application is determined, the quality required for the spring is often established. Therefore, during the design and manufacturing of springs, it is essential to thoroughly investigate the application and decide on the appropriate material selection, anti-corrosion treatment, allowable stress, and so on. 【Springs used under static conditions】 <Load specification adjustment> ■ Scales ■ Safety valve springs ■ Bourdon tube pressure gauge springs <Utilization of stored energy> ■ Cable reel springs ■ Constant load springs *For more details, please refer to the PDF document or feel free to contact us.

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We will introduce the classification based on the manufacturing methods of springs. First, they can be divided into "hot-formed springs," which are shaped in a red-hot state, and "cold-formed springs," which are shaped at room temperature and then low-temperature annealed. Hot-formed springs include "coil springs," "leaf springs," and "torsion bars," while cold-formed springs include "wire springs," "flat springs," "torsion bars," and "wire art springs." 【Hot-formed springs】 ■ Coil springs ■ Leaf springs ■ Torsion bars *For more details, please refer to the PDF materials or feel free to contact us.

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We would like to introduce the classification of springs based on the materials used. Metal springs are categorized into "steel springs" and "non-ferrous metal springs," while non-metal springs include "rubber springs," "fluid springs," and "synthetic resin springs." Additionally, traditionally, metals have been overwhelmingly predominant in materials, with carbon steel being commonly used except for some special applications. However, due to quality demands for high-stress specifications, improved heat and corrosion resistance, and weight reduction, the use of titanium alloys and other materials is increasing. 【Metal Springs】 ■ Steel Springs ■ Non-Ferrous Metal Springs *For more details, please refer to the PDF materials or feel free to contact us.

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I would like to introduce the classification of springs. Coil springs are divided into "compression coil springs," "tension coil springs," and "torsion coil springs," and further, compression coil springs are categorized into "compression cylindrical coil springs" and "compression bent coil springs," among others. For more details, please refer to the published catalog, and we encourage you to read it. 【Coil Springs】 ■ Compression Coil Springs ■ Tension Coil Springs ■ Torsion Coil Springs *For more information, please refer to the PDF materials or feel free to contact us.

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The "tension coil spring" is a spring used for applications that receive tensile loads, in contrast to compression coil springs. To effectively utilize the initial tension and minimize space, they are generally wound tightly. Please feel free to contact us if you have any inquiries. 【Product Lineup (Partial)】 ■ Half-round hook ■ Round hook ■ Reverse round hook ■ Side round hook ■ Square hook *For more details, please refer to the PDF document or feel free to contact us.

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The "twisted coil spring" is a coil spring that receives a twisting moment around the coil's central axis. It is desirable to use the direction of the load applied to the spring in the direction that winds the coil, and when it deforms under load, it undergoes a significant change in coil diameter, allowing it to be used in one-way clutches. Please feel free to contact us if you have any requests. 【Flow from Manufacturing to Delivery】 ■ Production Estimate ■ Prototype ■ Manufacturing ■ Delivery *For more details, please refer to the PDF materials or feel free to contact us.

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Compression coil springs (compression springs) are a basic type of spring that tries to return when a force is applied. The coil shape can vary not only in the usual cylindrical form but also in conical, barrel, or drum shapes to reduce the overall height. 【Lineup】 ■ Closed end (non-ground) ■ Closed end (ground) ■ Open end (non-ground) ■ Open end (ground) *Please feel free to contact us for quotes or prototype requests. For more details, please do not hesitate to reach out.

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Yamato Spring Co., Ltd. is a company located in Ota Ward, Tokyo, that engages in the research, development, and manufacturing of environmentally friendly spring products. Springs that can bounce, compress, and measure are used in various products such as automobiles, airplanes, computers, and electrical appliances. As a group of experts in springs, our company develops and produces a wide variety of springs based on years of accumulated experience and know-how, contributing to the realization of a more comfortable and convenient life. 【Product Line】 ■ Compression coil springs ■ Tension coil springs ■ Torsion coil springs ■ Leaf springs ■ Wire form springs ● For more details, please contact us or download the PDF.

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• Other Auto Parts
• Other electronic parts

"Flat springs" are springs that are formed into various shapes with high degrees of freedom through processes such as punching, bending, and crushing, using plate materials in press machines or forming machines, depending on the mold design. We offer several types of materials, including cold-rolled steel strips for springs, stainless steel strips for springs, and beryllium copper for springs. [Features] - Formed into various shapes with high degrees of freedom - Various types of materials available *For more details, please refer to the catalog or feel free to contact us.

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"Wire springs" are springs formed by bending wire materials in various directions using press machines or forming machines. Our company quickly responds to complex shape products that prioritize functionality through automatic three-dimensional shaping using computer-controlled forming machines, so please feel free to contact us with your requests. [Features] - Bending processing in various directions - Support for complex shape products *For more details, please refer to the catalog or feel free to contact us.

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