custom coil springs

Specification: 12.8*112/150*380*5.6
Material: 55SiCrA
This coil spring is suitable for the Buick Excelle. The Excelle adopts the most classic and cost-effective front suspension form, namely the MacPherson independent suspension. This coil spring sleeves a shock absorber, and together they form a suspension strut.
Wire diameter: ∅12.8 mm, outer diameter of End A: 112 mm, outer diameter of End B: 150 mm, height: 380 mm, number of coils: 5.6. The spring is right-handed, with a unit weight of 2.35 kg.
Unlike the Buick Regal, which is positioned as a mid-to-high-end model, the Excelle is positioned as an economical and practical family car. Therefore, the core goal of the design and tuning of its suspension system is to provide optimal comfort and reliability under extremely low cost constraints. The manufacturing process of this coil spring is extremely mature and conducive to automated mass production, thus reducing the production cost per unit, this is a factor that is crucial for customers who need to control costs.
Due to the simple structure of the MacPherson independent suspension, there are relatively few failure points. The coil spring itself is a highly reliable component, its material quality and heat treatment meet standards, and under normal usage conditions, its service life is almost the same as that of a vehicle. It rarely needs to be replaced unless it suffers from severe impact or heavy corrosion. This suspension system has undergone years of verification in the global market and is highly durable.