Аннотация
This article provides an overview of hydraulic rock drill models based on an analysis of their technical characteristics, applications, service life, cost, and other characteristics. To evaluate the technical and economic indicators, leading manufacturers of hydraulic rock drills were selected: Epiroc, Sandvik, Doofor, Montabert, Furukawa, Woserld, Everdigm, Klemm, most of which have representative offices in Kazakhstan. For comparison, the energy parameters of hydraulic rock drills are selected, including impact energy and frequency, power, pressure and fluid flow rate, application area, and cost. The advantages and disadvantages of hydraulic rock drills which offered by manufacturers are discussed. Special attention is given to hydraulic rock drills from Chinese manufacturers currently available on the market. Recommendations for selecting hydraulic rock drills are also provided