Spiral springs

A spiral torsion spring, also known as a spiral spring, clock spring, or power spring, is an elastic element made from a flat strip of steel wound into a spiral shape. It stores and releases energy through the elastic torsional deformation of the material.A constant force spring, a type of spiral spring, is made from a pre-stressed flat strip of high-elasticity steel tightly coiled into a roll.It provides an almost constant pulling force throughout its deflection range, meaning the output force remains nearly unchanged during extension.Structural Features:Made by winding thin carbon steel or stainless-steel strips into a spiral coil, usually forming a flat circular shape.The inner end is fixed to a stationary shaft, while the outer end is connected to a rotating component, generating torque through rotational movement.The torque increases gradually with the winding angle, providing stable and repeatable torsional output.Common Materials:SK5, SUP10, SUS301, SUS304, and 17-7PH high-elasticity steel strips.Surface Treatment Options:Heat treatment, polishing, zinc plating, anti-rust coating, or baking finish can be applied according to specific applications.