I-torsion spring ngumkhawulo wemithwalo ethiwa ngokusebenzisa ukunweba. Kuyinto eyenziwe kakhulu ngesiliva sesithwala futhi iyasebenzisa ukunweba ngokusebenzisa ukunweba kwakhe ukuthi ukunikeze amandla noma umsindo.
Isigqoko sokwenza i-torsion springs siyisidingo esikhulu, futhi izimpendulo zokugcina zinjalo, ngakho-ke isitatimende esikhungweni singakwazi ukuthi esikhulu. Kuyinto esinikezwa kakhulu ekwenzeni ukusontshwa kwemithwalo, ukulungisa izimpawu noma izivakashi, ukugcina amandla, ukulungisa ubukhulu bomphumela, futhi ezinye izikhathi. Kukhona izinhlobo eziningi zemithwalo yezithwala, kudinga kodwa akukwazi ukuba kwenziwe kakhulu, izithwala zezithwala, izithwala zezithwala, njll. Zinamandla ezinhle kakhulu ezindaweni zomshini kanye nezifundo zaselektronikhi, njengemithwalo yezivali ezindaweni zezingqimba zegesi, izithwala zokulungisa izithwala ezindaweni zezingqimba zegesi, futhi zinamandla ezinhle kakhulu ezindaweni zomshini, izithwala zokulungisa izithwala ezindaweni zezingqimba zegesi.