Such inspections would include a mine’s conveyance equipment. For example, it’s imperative that an underground operation utilize safe and reliable mine cages for the transport of men and materials. Mine cages must move at a preset speed to prevent accidents. Should it encounter an over-speeding problem, an emergency braking system engages to bring the cage to a halt. There are a number of compliant braking systems available such as rope breaking, traction sleeve braking and dynamic braking. Mine equipment fabricators like Wabi Iron & Steel Corp. design safety mechanisms like these as well as the robust mine personnel cages themselves.