Sunday, Jan 24, 2016 at 21:30
Not all Steel Wire Ropes have a hemp core - and possibly more than half of the SWR sold today has a steel core.
Bantam is correct about the hemp core holding lubricant for the SWR.
Steel core wire rope is much stronger than hemp core wire rope, and is used in substantial amounts in cranes and other high-load applications.
Stainless steel wire rope does not have a hemp core either.
If your SWR is to be dragged through the dirt, you don't want a sticky, greasy lubricant applied to it.
This will only pick up lots of sand and grit, and it will end up between the strands and cause increased wear on the strands as they flex.
A SWR lubricant that is a dry lubricant is best. Anything with Molybdenum Disulphide in it is an excellent dry lube - i.e. - a coating of MoS2 will continue to lube even when dry.
You can lube SWR right through, by immersing it completely in a tank with a special heavy SWR lubricant (it looks like thin bitumen) fully covering it.
The tank is then heated, turning the SWR lubricant into a much thinner viscosity, and the lubricant then penetrates right through the SWR strands.
This lube technique is only used when the SWR is not going to come into contact with the soil.
(I speak as an old fella who cut his teeth on machines that used SWR to lift and lower attached equipment, and I have more than passing experience in working with, installing, replacing, buying, and using SWR on a daily basis!)
Cheers, Ron.
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