It is a spring that is specially made to exert a torque. It is used for the rotational force. General kinds of Torsion springs resist the force either by compressing, or by extending. While torsion springs are made to resist rotational force by twisting. Spring rotates through an angle. So, torsion springs function by resisting angular energy. Extension spring manufacturer. On applying the load to end of the spring, it rotates along with an angle as per load placed.
For certain applications inner diameter of spring is considered while for some applications outer diameter of spring is considered. In order to offer accurate custom solution, we make use of computerized designing program.