Ko te motini dc e whakamahia nuitia ana ko: te mana motuka dc aukume tuturu, He mokowhiti, mokowhiti, momo kapu, he awhiowhio ta), motini motuka dc, te momo whakaihiihi ranu kore mana motika dc, motini motuka dc, mana hiko hiko, dc: punaha servo whangai o te aukume tuturu dc motini motuka momo momo mokowhiti mokowhiti o te miihini hiko dc pūmana motuhake, momo motuka hiko motuhake). hihiko dc pūmana nekeneke i roto i te mahi o te aukume pūmau dc servo motopaika pūmana āhuatanga: 1. Tere iti inertia nui 2. Torque nui 3. Tīmata taipana 4. nui awhe o te tere, mahi pūmau i te tere iti, taipana rerekētanga iti o te dc servo nekeneke pūmana hapa: 1. Paraihe me commutator kakahu ngāwari. 2. Te kaiwhakahaere motopaika o te rohe tere tere, rohe 3 te taiao tono. Te hanganga uaua, te uaua o te hanga me te utu nui
Ko te roopu HOPRIO he kaihanga ngaio o te kaiwhakahaere me nga motuka, i whakapumautia i te 2000. Te tari matua o te roopu i Changzhou City, Jiangsu Province.