Torsion springs are helical springs that exert a torque or rotary force. The ends are attached to other components and when the components rotate around the center of the spring, the spring tries to push them back to their original position. Torsion springs are often used in assemblies where self-closing doors or lids are required and in heavy industrial applications. Advanced manufacturing processes and strict quality control ensures Western Spring and Wire produces torsion springs that meet all industry standards.