We specialize in manufacturing oval springs that are integral components in both architectural and automotive parts.

Unique Design for Space Constraints
When space limitations necessitate an oval shape, our springs, as shown in the image, provide the perfect solution. These specially designed springs excel in applications where standard circular springs may not fit.

Material Versatility
We offer a wide range of materials to suit various needs:
●Piano wire
●Stainless steel
●Steel wire
●Oil-tempered wire
●And more

The Tempering Process
In spring manufacturing, tempering (heat treatment) is a crucial step. This process significantly affects the spring's final shape and properties.

How Tempering Affects Different Materials
●SWP and SWC (Piano wire and Hard steel wire):
　●Coil diameter decreases
　●Free length increases
●SUS (Stainless steel wire):
　●Coil diameter increases
　●Free length decreases

Our Approach
We consider these material-specific changes throughout our manufacturing process. By carefully managing spring production and tempering, we ensure that the final product meets your exact specifications for shape and force.

Our expertise allows us to deliver springs that perform precisely as required in your applications, whether for architectural components or automotive parts.


【Additional Information】
Video content available on our website and social media platforms.
Website: https://www.chuobane.co.jp/

【Contact】
Chuobane Co., Ltd.
1116-29,Takada,Kashiwa-shi,Chiba,Japan