MHE-Demag Malaysia (MDM) has recently completed two units of 40m long overhead cranes for a power plant in Thailand. The 40m long overhead cranes were the longest and widest overhead cranes manufactured by MDM. See Figure 1 for the girder of the 40m overhead cranes.
In order to comply with the requirements of structural welding code (AWS D1.1) and crane welding code (AWS D14.1), Chen Welding Integrity (CWI) Services was engaged by MDM to provide welding quality services which include welding procedure qualification and welder performance assessment. Furthermore, the overhead cranes owner requested all the weld joints of the overhead cranes to be 100% visually inspected. CWI Services was engaged by MDM to provide visual welding inspection service to inspect all the weld joints.
The details of the case study viewed from the link as follows: Case Study 002: Welding Quality Support for 40m Long Overhead Crane