抄録
In order to evaluate and maintain the wire rope life, we introduce and propose two systems. First is SEMSOR (Sales & Excellent Maintenance System Of Ropes ) that contains wire rope tester, position measurement tool, control unit and Internet transmission system. Second is REXS (Rope EXchange Support system) that can calculate the rope life from the load data etc. Two systems have been applied to many site of crane and expected to refrain from occurring accident concerning for wire ropes on the crane.
