Variable rate coil spring

Specification: 11.4*102/121*340*6.5
Material: 55SiCrA or 60Si2Mn or 60CrMnA or the like
This product is applicable to the “Wuling Hongguang”, a model produced by SAIC-GM-Wuling. Positioned between passenger cars and commercial vehicles, this vehicle model is highly practical currently. Its rear spring is also a variable rate coil spring, namely the product in question. The variable rate coil spring features a larger diameter in the middle and smaller diameters at both ends. By gradually reducing the number of coils towards the two ends, its stiffness is enhanced, which better improves the vehicle’s load-carrying capacity while reducing its weight to some extent. This spring from our company can better meet the vehicle’s requirements, and is applicable to both commercial vehicles and passenger cars. In terms of appearance, the product is also attractive, because we use advanced shot blasting and grinding technologies to polish it, which removes residual surface stress and extends the spring’s service life. Additionally, we offer customized top coats according to customers’ requirements to ensure that the product’s exterior is rust and corrosion resistant. Meanwhile, we conduct fatigue tests and load-bearing tests in strict accordance with national standards to guarantee that every product is qualified. This spring also undergoes road tests, the spring’s rebound data during travel on bumpy roads is fed back to be used to adjust machining data during production, thus ensuring that our products are free from any defects after leaving the factory.