剪jian式shi抓zhua鬥dou是shi把ba兩liang個ge顎e板ban靠kao鉸jiao點dian的de端duan部bu延yan長chang為wei繩sheng索suo式shi加jia力li臂bi，兩liang臂bi共gong用yong一yi個ge叫jiao中zhong心xin鉸jiao點dian，剪jian式shi抓zhua鬥dou的de開kai啟qi動dong作zuo依yi靠kao放fang鬆song剪jian臂bi處chu滑hua輪lun組zu的de鋼gang絲si繩sheng，收shou緊jin支zhi承cheng繩sheng來lai完wan成cheng，關guan閉bi動dong作zuo依yi靠kao收shou緊jin滑hua輪lun組zu的de鋼gang絲si繩sheng，利li用yong杠gang杆gan原yuan理li的de增zeng力li
，使shi顎e板ban閉bi合he抓zhua取qu物wu料liao，其qi閉bi合he力li矩ju隨sui著zhe閉bi合he過guo程cheng逐zhu漸jian增zeng加jia

，抓zhua取qu力li大da於yu長chang撐cheng杆gan抓zhua鬥dou。剪jian式shi抓zhua鬥dou類lei型xing為wei四si繩sheng式shi，抓zhua取qu物wu料liao時shi幹gan淨jing不bu漏lou料liao，多duo用yong在zai大da型xing橋qiao式shi卸xie船chuan機ji上shang。