At the southern port of Shanghai's Pudong area, at the mouth of the Yangtze River, the Waigaoqiao Shipbuilding Co. Ltd. (SWS) is situated just opposite the Changxingdao port area. The Chinese shipbuilder SWS is one of the ten largest worldwide. Three shipyard cranes are currently in operation in this huge industrial area, the dimensions of which correspond to those of 30-storey high-rise buildings. The energy and data supply to the gigantic lifting elements is implemented with plastic energy chain systems from igus®.
The energy supply systems work reliably under the most difficult environmental conditions, as at the mouth of the Yangtze River there is whipping wind, rain and salt water. Especially the annual two-month rainy season poses a risk of corrosion.