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universal arc-shearing machine

A machine with a rotating jib head so that vertical or shearing cuts can be made in addition to the arc wall cut. An arcwall machine will cut a 12-ft (3.7-m) heading to a depth of 6 ft (1.8 m) in 10 min.

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  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 points
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