... the radius of gyration is 40m. Uses in the coal (coke) pile of material work.The radius of ... gyration is 40m. Uses in the coal (coke) pile of material work.that is a ... widely used for stacking and reclaiming bulk materials (mine, coal, coke and sand ) in harbour, dock, iron-steel ... plant, coking factory, coal storage and power station. The advantages of using Bucket ...