Drift advancing or mining machine

摘要

A drift advancing or a partial-cut mining machine (1) comprises a cutting arm (11) being swivellable in a height direction around an axis (10). The front end of the cutting arm (11) is equipped with guides (26) transversely extending relative to the longitudinal axis (38) of the cutting arm (11) and having shiftably supported thereon a carrier (27) for the cutting heads (28, 29). The cutting heads (28, 29) are rotatably supported on the carrier (27) for rotation around vertical axes (46). The distance (a) between the axes of rotation (46) is, as measured in a transverse direction relative to the longitudinal axis (38) of the cutting arm, at most equal to half the width (b) of the drift face.