In connection with the forthcoming development of deep quarries to the rolling stock will be even more insistent two basic requirements: reducing the dead weight of the train and the ability to overcome large gradients. Reducing the tare coefficient of the train about two times and overcoming gradients of about 80-100% in railroad transport can be realized by the usual replacement of locomotive traction by motor cars. However, at these gradients the required number of motor cars is large. This complicates the operation of rolling stock and increases capital and operating costs. For example, according to V. E. Rosenfeld, E. V. Chebotarev and B. G. Kamenetsky, the economic cost of the railroad cars is higher. G. Kamenetsky, the economic feasibility of using motor cars is limited by the slope of only 63%.

The solution of the problem of transportation of large volumes of rock mass at open-pit mining operations depends to a great extent on increasing productivity and cheapening the operation of rail transport. An important role should be given to the improvement of wagon designs, which account for 65% of metal consumption and up to 40% of maintenance, repair and depreciation costs in relation to the total costs of rolling stock.As the analysis of transportation equipment operation at open pits shows, the current situation with the equipment of open-pit mining operations with dumpcars cannot be considered satisfactory: a) the nomenclature of manufactured dumpcars is small; b) the strength of the main components of the wagon in general and especially when used for loading of excavators is low. Therefore, it is necessary to design and manufacture new types of dumpcars for open-pit mining operations.