The spring is an elastic object that stores mechanical energy. Springs are usually made of spring steel, and there are many different types of springs. Commonly, coil springs are the type used in everyday life.
What Is an Extension Spring?
An extension spring is a device used to store and exert force between two mechanisms. When the two mechanisms separate, the extension spring tries to bring them back together again. Extension springs are constructed using round wire to create a close-wound design with an initial tension.
How Extension Springs Work?
There are two mechanisms attached to the ends of an extension spring. The hooks and loops of the spring store and absorb energy. Through these hooks and loops, the extension spring provides return force to the mechanisms connected to it.
There is more stress in the end hooks of an extension spring that sits in the no-load position since they are wrapped tightly. This more stress affects the performance of extension springs rather than the spring bodies.
Best 5 custom extension spring Manufacturers China 2023
If you are looking for the best 5 Spring Manufacturers and Suppliers in China, we have compiled the following list for you to pick from so you can pick the best one for you:
Ningbo, Zhejing Province, China is a professional manufacturer of metal springs and wire fabrication items, including Torsion Springs, Extension Springs, Compression Springs, Die Springs, Circlips, and Wire Forming. A number of skilled designers and engineers, along with a large variety of machinery, equipment, and testing equipment, enable them to provide customers with high-quality springs that are competitively priced.
A CNC computer spring automatic molding machine and computer testing equipment are used in their factory, including the GSM 720, (8 BCX BAMATEC), and (KHM) CNC 10. In Japan, (MEC) TM – 8, there are punching machines, automatic lathes, dynamos, tempering furnaces, projectors, fatigue testing machines, etc. The company can manufacture wire diameters of 0.15mm-30.0mm for springs, torsion springs, extension springs, compression spring antennas, battery springs, abnormality springs, coil springs, disc springs, die springs, conical springs, special-shaped springs, rotary drill pipe springs, engineering machinery springs, elevator springs, and other special springs.
In addition to passing ISO9001 quality management system, theirR&D team has many years of manufacturing experience. They are constantly developing springs to meet the needs of their customers.
2, Xiamen Xinshunyan Industry Co., Ltd.
As a professional manufacturer of hardware springs, Xiamen Xinshunyan Industry Co.,Ltd. was established in 2004. It is a company specializing in research, development, manufacturing, distribution, and service of hardware springs. Located in Xiamen with easy access to transportation, they are committed to strict quality control and thoughtful customer service. Their experienced staff members are always available to discuss your Factory-direct price requirements and ensure full customer satisfaction. During the past few years, their company has introduced a variety of advanced equipment, including CNC spring forming machines and spring machines.They accept small orders attained ISO and SGS certificates selling well in all cities and provinces around China, their products are also exported to clients in such countries and regions as Australia and they welcome OEM and ODM orders as well.
3, Jiaxing General Springs Co., Ltd.
Starting off as a company with the goal of excelling in the Tension Helical Springs industry, they have gained a lot of experience delivering the highest quality springs to their clients. Jiaxing General Springs Co., Ltd. Private Owner was introduced in 2013 as a Supplier and Supplier of Tension Helical Springs, with an initial investment of US$1 million – US$2.5 million as the business capital. As a result of sourcing the best raw materials and housing skilled workers, they have been able to capture a substantial share of the consumer market in Australia, Canada, Germany, France, and the United Kingdom, enabling them to generate annual revenue of approximately 5 million US dollars. There is a production facility located in Jiaxing, , China, which operates under Agency. In terms of tension helical spring production and export across different regions, they hold a 7 year export history, catering to a US$50 Million-US$100 Million export ratio, and they are known for their best in class helical springs.
4, Zhejiang Jinchang Spring Co., Ltd.
Located in the Zhuji City economic development zone, Zhejiang Jinchang Spring Co., Ltd. has a large workshop area that is used for production.
Currently, the company has two factories with more than 50000 square meters of floor space, 120 million yuan of fixed assets, 360 employees, including 60 engineers and technical personnel, and sales of more than 200 million yuan per year. In addition to certifications of ISO14000, ISO18000, and German “TUV” international technical specifications, the company has an extensive product manufacturing capability. Product quality testing equipment and a team of exceptional inspectors ensure that the product quality is stable and reliable and enjoys a high reputation among users for quality.
5, Dongguan City Yisen Precision Hardware Spring Co., Ltd.
The Dongguan Yisen Precision Hardware Spring Co., Ltd. is a manufacturer of hardware springs that combines production, sales, and after-sales service functions.
It has been more than 20 years since the company was established, and through its own strong professional production capacity and its continuous research and development capabilities, it has gradually evolved into a professional spring manufacturing company, with a comprehensive management system, advanced production technology, comprehensive testing equipment, and extensive spring surface processing capabilities.