Buy used Process-plants from A.M. King Industries. We can help guide you to the best solution for your equipment needs. ... 10-15 TPH Modular Gravity Hard Rock Gold Recovery Plant. Manufacturer: Inventory ID: 18C-SG01. ... USED 200 TPD Plant Components including Jaw Crusher, Ball Mills, Pumps, Cyclones, Flotation Cells, Filter, Conveyor and More.