The P4.1 rol e-chain series make it possible to increase plant safety and availability. There is a bearing point for pivoting in every connection of the chain links. This has now been re-equipped with maintenance-free plain bearings, which more than doubles the service life.
To meet the increased requirements of the new container ships such as the Triple E-class, new and larger STS cranes have to be built or existing ones converted. Crane availability and dependability requirements are also increasing. This affects the design and selection of the energy supply systems.
To increase the availability and reliability of STS cranes, igus has developed the P4.1 rol e-chain. Here, tribologically optimised plain bearings ensure the lubrication-free mounting of the individual chain links. This more than doubles the service life of the chain. An optional sensor also enables predictive maintenance, which helps to further increase plant availability. Highly flexible cables from the chainflex product range complete the fail-safe solution for cranes and long travels. The P4.1 system is suitable for both trolley drive and longitudinal travel with travels of 1,000 metres and more.
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*The stated running performance data results from extrapolations of customer applications in combination with our test data.
Due to the offset between upper run and lower run, the polymer rollers are not rolled over, but roll past each other to allow very smooth running. As a result, the coefficient of friction decreases and the drive power is reduced by 57 per cent.
Equipped with maintenance-free plain bearings in each chain link, the service life of the energy chain is more than doubled.
As an option, the new P4.1 can be fitted with smart monitoring sensors . Therefore, at a defined wear limit, a signal is issued to the igus i. cee communication module and with it maintenance can be planned in advance.
The P4.1 rol e-chain was tested with a travel speed of up to 8m/s over a distance of 200m, which corresponds to a 400m travel. The fully automatic system accounts for a wide range of applications in terms of acceleration and speed. In addition to the mechanical loads caused by the movement of the transfer vehicle, environmental influences act on the energy chains and cables being tested.