This crane is a customized lifting machine we designed for the client. The lifting capacity, arm length, and operating speed are all customized according to customer requirements. During the operational performance test, the engineering technicians flexibly controlled the Krell Crane to perform various actions using control levers and buttons. Whether hoisting, rotating, extending, or lowering, the Krell Crane performed with ease, fully demonstrating its excellent operational flexibility and the high sensitivity of its control system. In the safety device test, the Krell Crane also performed exceptionally well. In simulated emergency situations, safety hooks and overload protection systems responded quickly and accurately, effectively ensuring operational safety. The test results greatly reassured all personnel present.