The casting crane has a bad working environment, long working time in three shifts, large lifting load, expensive lifting value, and is a major accident in case of danger. Therefore, it is particularly important to monitor the fatigue on-line safety of the main beam structure of the casting crane.

The main beam of the casting crane is of box type structure. When working under heavy load and high temperature for a long time, the stress of the main beam structure should be monitored, and the structural safety margin should be analyzed to ensure the safety of the main structure of the crane.

Wt-sms-yl03 casting crane stress online monitoring system is developed and manufactured according to the casting crane scrapping standard, which can monitor and display the stress data of the main beam under various loads in real time. According to the design safety range, the system can give the early warning indication of the fatigue structural stress overload of the main beam of the bridge crane. The system can store and export data, and can analyze the trend of the monitored data, and evaluate the health of the main beam in combination with finite element analysis and load stress spectrum.