English to Ukrainian Tech/Engineering Mechanics / Mech Engineering Mining equipment

In hard rock mining application, it is common to use, for example, rock shearers for winning hard rock materials in a longwall, or to use, for instance, rock headers for generating a roadway in an underground mine. Both the rock shearer and the rock header may comprise at least one rotatable drum, which may be equipped with at least one cutting head being rotatable. The cutting head may be configured to support a plurality of cutting bits which are in turn configured to engage the hard rock for winning hard rock materials. The rotatable drum may be adjustable in height relative to a machine frame by a swivel arm.