They also drill bolt holes into roofs at specified distances from ribs or adjacent bolts.
Underground mining roof bolter.
Drill bolt holes into roofs at specified distances from ribs or adjacent bolts.
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Sandvik bolter miners are hydraulically or electrically powered high capacity machines for safe and efficient roadway excavation and roof bolt installation in underground coal and soft mineral mines.
Mining roof bolters operate machinery to install roof support bolts in underground mine.
Underground roof bolters first name.
Install safety or support equipment.
Force bolts into holes using hydraulic mechanisms of self propelled bolting machines.