Abstract: The open pit capacity has been increasing over the last year, thus, creating favourable conditions to apply modern mining and hauling equipment and to adopt new advanced mining processes at Vostochno-Bernikovskiy deposit. The open pit operations are equipped with a large fleet of different equipment, however, the basic technical and economic performance indicators (productivity, profitability of mining company and others) are not improving at sufficient rate. The study contains the research data for the dependence of bulldozer performance on the average mucking distance and seismic velocity, adjustment factor for surface slope (downward or upward) as well as an assessment of the rock breaking characteristics by the seismic wave speed using a single-shank or multi-shank adjustable parallelogram ripper and a bulldozer with a capacity of 634 kW and weight 104.5 t. These results allow development of non-explosive mining technologies for construction materials as well as improving technical and economic performance of the open pit.