Crane quality appraisal can be analyzed from the following aspects:
1. Loading capacity: The load-bearing capacity of a crane is one of its most important performance indicators. During quality appraisal, it is necessary to check whether the rated load capacity of the crane is consistent with the value specified by the manufacturer, and to ensure that it can lift and carry heavy objects safely and stably under actual working conditions.
2. Structure and welding quality: The structure and welding quality of the crane directly affect its strength and stability. During the quality appraisal, the crane's structural parts and welded joints need to be inspected to ensure that they are strong and reliable and comply with relevant quality standards and specifications.
3. Control and control system: The control and control system of the crane should be flexible, precise, and easy to operate. During quality appraisal, it is necessary to check the quality and working reliability of control components such as joysticks, buttons and control panels, as well as whether the crane's action response is accurate.
4. Safety devices: Cranes should be equipped with necessary safety devices to ensure work safety. During the quality appraisal, it is necessary to check whether the crane's safety devices are complete and ensure that they can work properly, including heavy-load protection devices, limiters, safety locks, etc.
