A P4.1 series roller energy chain is in operation at the Port of Rotterdam, one of the largest bulk handling ports in Western Europe. On the ship-to-shore crane, it operates continuously over 100 metre travel and without incident. So far it has completed more than 9,000 operating hours.
For this 900t shipyard crane, the operator previously relied on a cable tender system to route the cables to the trolleys. Since the tension on the cables led to high maintenance requirements over time, the decision was made to replace them with an energy chain system. Since then, two heavy duty roller energy chains of the 5050RHD series have been in use.
Bulk handling cranes place extreme demands on cable solutions in many respects: while the travels for the transport of bulk goods often reach several 100 metres in length, all components must withstand outdoor weather conditions throughout the year. But also the high level of dirt and dust during transport of, for e.g., ores, sand or gravel require energy chains with high robustness, corrosion resistance, maintenance-free and long service life.