Voest-alpine Aktiengesellschaft

Hubert Weissensteiner

Herwig Wrulich

Horst Kolleth

Bernward Bruns

Franz Menapace

Device and method for exploiting material

A movable device (1) for openpit mining has a plurality of excavating hammers (11) on a cantilever boom (2) being swivellable in height direction. For facilitating the continuous excavating work and for providing an adaptability to the varying angles of inclination encountered in openpit mining, at least part (23) of the carrier (6) or the carrier (6) itself is shiftable in transverse relation to the longitudinal axis (7) of the cantilever arm (2), so that on downward swivelling movement of the cantilever arm (2) in direction of the arrow (17) the whole carrier (6) or at least part (23) thereof can be shifted in transverse relation to the longidudinal axis (7) of the cantilever arm by a hydraulic cylinder-piston-aggregate (8), thereby maintaining a predetermined angle of inclination or angle of repose.

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Knittelfeld, Austria

Hubert Weissensteiner