How do they match: Roof Bolters, Mining

  • Drill bolt holes into roofs at specified distances from ribs or adjacent bolts.
  • Drill test holes and test bolts for specified tension, using torque wrenches.
  • Force bolts into holes, using hydraulic mechanisms of self-propelled bolting machines.
  • Remove drill bits from chucks after drilling holes, and insert bolts into chucks.

  • Drill holes in earth or rock.