The shape of the hooks at both ends of the tension spring can be customized as desired. It is compatible with high-tension tension springs. Available in sizes ranging from very small to large!
Generally, it is a spring that utilizes the pulling and returning motion by tightly winding the coil part and attaching hooks at both ends. The shape of the hooks varies depending on the place of use and application. This spring has a very wide range of applications, including brakes for automobiles, forklifts, industrial machinery, tension stands, and tumble mechanisms. Our company can accommodate wire diameters from 0.09mm to 10.0mm through molding machines or manual processing, but please feel free to consult us about other sizes. - We manufacture various hook shapes and characteristics of tension springs with reliable technology. - Production is done using materials and surface treatments according to the desired usage environment. - Prototypes can be made from just one piece. Small orders and short delivery times are also welcome. - We also accommodate composite products that combine tension springs and wire processed products. (See right image)
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basic information
Our tension springs are characterized by their beautifully tightly wound bodies. Whether you need long springs or short springs, you can trust us! We can flexibly accommodate all kinds of hook shapes. We process using various materials for springs, including piano wire (SWPB, SWPA), hard steel wire (SWC), and stainless steel wire (SUS304). The rising part of the hook is crucial for tension springs! If you are experiencing issues with breakage accidents from tension springs manufactured by other companies, please feel free to contact us. Our tension springs can accommodate all hook shapes. We can certainly provide and manufacture proposals for hook shapes that meet your requirements, including common shapes like reverse round hooks, U-shaped hooks, and round hooks. Please consult us about shapes that other manufacturers have declined.
Price information
We are in-house manufacturing the necessary jigs for production, allowing us to supply products at a low cost. Please feel free to contact us.
Delivery Time
※We will respond promptly.
Applications/Examples of results
Automotive parts Construction-related parts Industrial machinery parts Household goods-related parts, etc. We have delivery records for all kinds of industries and companies.
Detailed information
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It is also possible to process tension springs with hooks on only one side. We are skilled at manufacturing tension springs with hooks attached to only one side, as shown in the photo. Additionally, we can apply treatments such as unichrome plating or zinc plating as post-processing, so please feel free to contact us.
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The hardness (initial tension) of tension springs can be adjusted freely. By applying a strong initial tension, a hard spring can be produced, while a weaker initial tension allows for the creation of a soft spring. With the skilled technicians at Komura Industries, it is possible to manufacture high initial tension springs that other manufacturers might give up on, so please feel free to contact us.
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We also accommodate the manufacturing of long close-coiled springs. Generally, the body of tension springs is often closely wound, but we also accept orders for the manufacturing of the close-coiled body portion, excluding the hook part. We can produce items ranging from thin to thick outer diameters, as well as long or short lengths, tailored to your specifications.
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It is also possible to manufacture tension springs with pitch. Normally, the body of a tension spring is coiled with close winding, but it is also possible to wind it while adding pitch. As a result, a tension spring with an initial tension of zero is born.
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It is also possible to grind one side of a tension spring. This is a very rare spring. It has a hook like a tension spring, but it is not attached to both ends; there is a hook only on one side. Moreover, one side has been ground and flattened. It does not have the function of a tension spring and may fall under the category of wire processed products.
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We can flexibly accommodate items such as end-constricted contact springs. The image shows a contact spring from SWC (80C), which has been processed to constrict both ends. It is possible to constrict or expand it, allowing for variations in a straight contact spring.
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We can process hooks tailored to the shape of the counterpart parts. Based on our customers' requests, we will propose the shape of the springs. The tension spring in the image is designed to match the shape of the counterpart part. We considered the shape after examining the counterpart part. If you are struggling with issues such as poor fitting or excessive play with the parts, please feel free to contact us.
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We are also skilled in the production of high initial tension extension springs! Recently, the design of springs with high initial tension has become prominent among extension springs. As the trend towards smaller sizes continues, there is a growing demand for springs that can operate under high loads in limited spaces. Our company specializes in manufacturing high initial tension extension springs that require complex processing to meet these needs.
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Company information
◎ Difficult processing that cannot be done by machines will be handled by our skilled staff while listening to your requests. Please consult us even for springs that could not be manufactured by other companies. ◎ During manufacturing, we confirm quality with a "Manufacturing Check Sheet," and after production, we conduct load tests and projection inspections using our in-house spring testing machine, issuing an "Inspection Report" based on the results. We deliver high-quality products consistently. We have obtained ISO 9001:2015 certification. ◎ We will definitely make it cheaper than anywhere else! ... Although we cannot say that, we are committed to delivering at your desired price as much as possible. By having strong connections with material wholesalers and in-house production of jigs and molds, we strive to provide low-cost solutions not only for mass production but also for small orders that tend to incur higher costs.