Rock bolting device

Details Rock bolting device Rock bolting device

E - Fixed Constructions

21

D

E21D 20/02 (2006.01) E21D 20/00 (2006.01)

Patent

CA 2054954

Abstract: Rock bolting device comprising a swingable bolting unit (2) which carries a conduit (4) for transport of hardenable mass to a drill hole (3). The conduit is surrounded by a tube (5) in which a thickened part (6) of the conduit is movable to-and-fro under sealing cooperation with the tube. Through this the conduit (4) can be fed towards or away from the mouth (7) of the drill hole (3). 90008.utl

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