Extension springs are typically manufactured with an initial tension fi which presses the coils together in the free state. This fabrication method allows consistent free lengths to be produced, but since the initial tension is not zero, the spring rate is not truly linear when measured from the resting state. However once the initial tension is overcome, the spring does behave linearly.
We are the manufacturer of Spring from China.Our spring products are mainly custom spring and common spring, such as Compression Spring, Extension Spring, Torsion Spring, Disc Spring, Wireforming Spring and other custom spring. We have earned a superior reputation for our skills in the manufacture, heat treatment and inspection of custom springs for hundreds of the world's top aerospace, military, nuclear (Navy and commercial), and industrial companies.
Whatever new designs and changes to existing designs that you need on custom srping, please kindly contact with us by fax or email. We do our best to work closely with our customers from planning through production to ensure that our wire forms are perfect for your specific application
1. Name of commodity: Precision Hardware Spring (QL-S-001);
Product Keywords: Coil spring; Flat spring; Machined spring; Extension spring; Compression spring; Torsion spring; Cantilever spring; Blance spring; Leaf spring; V-spring; Belleville spring; Constant-force spring; Gas spring; Main spring; Negator spring; Progressive rate spring; Spring washer; Wave spring.
2. Material: Spring metal, low carbon steel, ss304, ss301, 65mn, 16mn 3. Surface process: Zinc plated, powder coated, painted, polishing
4. Weight: From 5 grams to 3000 grams
5. Spring thread dimensions: Can be 3mm to 8mm.
We have over 7 years of producting experience of metal spring product. They are widely used in machinery assembly, agriculture machinery fittings, holding and lifting system parts, furniture hardware and fiitings.
