Contribution of the authors:Yuliya A. Lagunova -formulation of the problem of calculating the parameters of the working process of a dragline excavator; analysis of the results. Sergey A. Khoroshavin -development of a bucket design model; writing a text. Alexander E. Kalyanov -setting a research task; reviewing relevant literature; performing calculations. Konstantin G. Buialich -reviewing relevant literature; performing calculations.