Previous articles discussed some legal aspects of hoisting operations and posed the question "Does your drill rig comply with legal requirements?" This article examines this question in more detail.
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Manufacturers of hydraulic longstroke drills specify the depth capacity of their rigs in different ways and since these drills can pull drill rods in two ways, these specifications can be confusing. In this article I try to make sense of what the specifications mean.
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This article addresses the depth capacity of the second common type of drill rig used on exploration projects.
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