Crane selection should pay attention to the problem

       The user shall properly propose the requirements for the work level of cranes according to this standard. If possible, he must also make progress in clearing the work level of each agency. To ensure that manufacturers can design and manufacture according to this requirement.

       Shandong Qi Lide Heavy Industry Group - the level of work for cranes. It is determined by two factors: the level of use of the crane and the level of the load of the crane. The crane lifting level indicates the level of the crane's busy work, which is determined by the total number of working cycles of the crane. It can be estimated from the number of years of use of the crane (the number of years of use before the crane is suspended or renewed), and the annual average. The number of working days, the average number of lifting work cycles per workday, and so on are the product of three numbers. The load state level of the crane indicates the severity of the crane lifting load.

       Explanation: For these two calculations, only an estimate is needed, and no very strict calculation is required.

       Hanging agencies work level. It only evaluates each agency as a whole. It outlines the level or load spectrum factor that reflects the state of the load, using the agency's usage level I design life, number of hours worked, and the load status level f of the organization. ) The overall status of the organization's work as determined.

       In the same way, the calculation of the use level of the institution and the state level of the mechanism load status need only be estimated, and no strict calculation is required.

       If the user is unable to provide the relevant data of the required cranes and thus cannot use the method described above to calculate the working level of the hoisting machine or its organization through calculations and look-up tables, it is also possible to refer to Appendix A and Appendix B. The relevant information in the survey is to select approximately the desired working level of the cranes and their agencies. However, it should be noted that these selection guides in Appendix A and Appendix B are not binding and are only given as a reference example for selection. The level of work of the organization specified in the bidding documents and the order form can only be determined by the crane users.

       When ordering cranes, users should specify the weight, span, lifting height and working level to be selected, and provide workshop and site work environment and use status and other process information.