Cutting machine

E - Fixed Constructions – 21 – C

Patent

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E21C 27/20 (2006.01) E02F 3/20 (2006.01) E21C 31/02 (2006.01) E21D 9/10 (2006.01)

Patent

CA 1050054

ABSTRACT OF THE DISCLOSURE The present invention provides a cutting machine in which at each side of a universally pivotable cutter boom one cutting head is rotatably supported around an axis extend- ing vertically to the longitudinal direction of the cutter boom and is advanced in direction of its axis when swivelling the cutter boom, noting that the cutting heads are propelled by a drive unit via a reduction gearing arranged within the cutter boom, characterized in that at least the last stage of the reduction gearing is arranged within the cutting heads being hollow.

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