Detailed Product Description

Hot Wound Coil Spring uses materials with 10mm~90mm diameter. In general, the shape of the materials is a round section, but for special purposes, there are round sectional taper spring which has a consecutively changing diameter and is used for suspension of autos recently, square sectional spring, and nonlinear sectional spring. Coiling on the cylinder-shape is most common, but for special purposes, there are ping tail end spring in which the diameter of the left part coil is minimized, cylinder-shaped spring, cone-shaped spring, and double-headed drum type spring.