The wire rope is an important force-bearing component of electric hoist, in addition to the steel wire, the material of the wire rope also has a rope core. The rope core can support, lubricate, prevent corrosion, and reduce inter-strand pressure.
The core of the steel wire rope is identified by the letter FC. Hemp core, for example, has the function of storing lubricating oil, which can keep the surface grease of the wire rope for a longer time, thereby improving the service life of the wire rope. For some electric hoists that work frequently, wire rope lubrication is very important.
Generally speaking, the oil content of new wire rope hemp cores can reach between 12% and 15%, and the oil content of steel wire ropes has been continuously reduced since the beginning of use. It is necessary to add grease in time to play the role of anticorrosion and rust. According to experimental tests, the number of broken wires in the steel wire rope added with grease is reduced by about half compared with the number of broken wire ropes without oil.
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