13414-3 (2003) steel rope/grommet and cable laid slings. IMAC; the use of cable laid slings and grommets.
The definition of endless cable laid grommets is the manufacture of a continuous length of wire rope with a steel core formed to make a body composed of six outer ropes around the core. The rope ends of a cable laid grommet are tucked into the body forming the core with the truck position opposite to the core butt position. The final resulting sling is an endless wire rope sling with no visable join. The length of the grommet circumference shall be at least five times the grommet lay length, the core butt position shall be clearly marked red. At this point the grommet should never be loaded or bent. This variation of slings has many merits, i.e. the capability of the sling is very flexible and easier to sling and has the opportunity to lift loads in excess of mechanical splicing methods.
The relative point while calculating correct diameter of rope is the size pf the pin/dia or master link that the cable laid grommet is being utilised with. The minimum requirement to achieve valid safe working load must exceed ‘4 d’ or a formula must be incorporated to ascertain SWL ratio on a sliding scale.
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