... used areas of the slewing ring, such as tower cranes, excavators, cranes, and other kinds of construction crane, piling machines ... , such as offshore platforms, a variety of port cranes, deck cranes, etc. This type of slewing ring with high ... advice 8.Application Wind turbine, the port's maritime cranes, marine cranes, mobilecranes, ferris wheel, heap reclaimer shipping loaders, constructionmachinery ...