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Safe With Fiber Rope soLITE® > Ropes constitute one of the key components on cranes. Rope malfunctions will cause activities at the construction site to be stopped and may even compromise workplace safety. There exist proven parameters to determine the point of discard of steel wire ropes, but also that of TEUFELBERGER soLITE® fiber ropes. This makes the use of soLITE® on cranes just as safe as that of steel wire ropes.


Redundant safety system to determine discard point The special cover of a soLITE® rope has no load-bearing function, but serves primarily to help users recognize the rope’s discard point and to protect its core. The visible sequential wear of the differently colored fibers reflects the progress of the deterioration of a soLITE® rope up to its discard point. Once the signal red core becomes visible – which can also be seen clearly from the crane cab – it is very


cycles on the crane is also documented, the digital calculation of the life span makes a required subsequent rope change easier to predict so that it can be scheduled optimally. Using soLITE® relegates unexpected, costly downtimes to the past. This redundantly protected system helps achieve the best possible levels of safety and availability for construction site, crane and service staff. In fact, they are better than with commercially available steel wire ropes which, usually, are only subjected to visual inspections.


likely that the rope will have to be discarded soon. As soon as the core is fully exposed, the rope must be discarded even though safety is still reliably ensured at that point. In the event that the number of bending


FEM 5.024 standard released in 2017 also provides formal safety At present, the discard point of a steel wire rope is determined based on a number of possible discard criteria. The most common criteria are broken wires, local damage, deformations, and corrosion. In many cases the residual breaking force of the steel wire rope at the time of reaching the discard point is used in order to measure the residual safety and to verify these discard criteria. However, depending on type of use and rope construction, this provides only limited


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12


JULY–AUGUST 2018


WIRE ROPE EXCHANGE


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