Abstract
This paper presents factors exerting significant influence not only on the productivity and performance of excavators but also on the formation of cracks in the metal structures of excavators. Based on the obtained experimental results and observations of excavators working under specific conditions and subsequent analysis, it was noted that these factors determine the durability (the number of loading cycles) of excavators.A relation between the working conditions of the spider and mine excavators in the faces and the durability of their metal structures and productivity was established. Mining technical conditions, technology of drilling and blasting operations, oversize yield and coarseness of grading of the rock have a significant impact on the reliability and performance of excavators.The derived graphical dependencies clearly show the influence of these various factors.
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