KSP-42 Roadheader is a heavy duty machine for cutting very hard strata. It is designed to mechanize the process of breaking and loading of mined rock while driving mine workings with a gradient of up to ±12° and cross-section from 12.5 up to 37 m2 in coal and mixed faces with the ultimate strength of up to 120 MPa and abrasivity of up to 18 mg in mines with hazardous concentration of gas (methane) and coal dust.