Study on Value Evaluation Model of Used Excavators Based on AHP Method

Overall speaking, China’s used construction machinery appraisal system is still in its infancy, without a set of scientific, unified, and improved appraisal methods and assessment theory. In this paper, a variety of factors affecting the value of used construction machinery are taken into account to establish the value evaluation model. Considering the difference and similarity of construction machinery, the typical single bucket hydraulic excavator is selected to verify the evaluation method. AHP method is adopted to analyse and determine the influence factors, comprehensive parameters and adjustment coefficient of used excavator, as well as their weights, and then determine the appraisal price of a used excavator.