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Drill Rig Wire Rope Life Expectancy Calculation

Drill Rig Wire Rope Life Expectancy Calculation

Drill Rig Wire Rope Life Expectancy Calculation

(OP)
I am a driller on a Drilling Rig which use the Fork Lift raise and lower concept to lift/lower drill pipes ,casings etc. , we use 1-1/2" 8x26 ( 128.2tons per strand breaking capacity wire ropes x 2  )the ropes are anchored both ends and run over 27" sheaves  , the rig has a 100 ton lift capacity and will be on drilling operations 12 to 24 hrs per day lifting minimum 2 ton and max 100 ton intermittantly ,  SAFETY is the priority - my Question , is there a calculation that can be used to enable the rig operator to say now is time to change the two wire ropes , even though they look to be in good shape .

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