This video shows torsion springs being tested to pre-defined torque settings using Mecmesin's Vortex-i PC-controlled torque testing system. The torsion springs are held securely by custom-designed individual two-part mandrels. The Vortex-i is driven by Mecmesin's Emperor Torque software, which gives immediate indication of "Pass" or "Fail" for each type and size of torsion spring.