The compression springs are coiled in step helical springs, wrapped and sized in order to exert a compression along the axis of the spring, usually inserted on an axle, or connected to a hole. Subject to compression, they repel the force applied, maintaining the deformations in the elastic.

Among the coil springs applications that can be mentioned:

• softening of impacts,
• reduction or magnification of vibrations,
• command of movement systems,
• energy storage,
• application of force proportional to the position.