To mine copper, the first step is to blast the copper rock from a open pit mine, then loaded and transported to the crushing plant. In a large-scale copper rock beneficiation plant, crushing plant and grinding plant is needed. In the crusher, the rock is broken into smaller pieces of less than 25 centimeters in diameter. Crushed rock is then loaded on to a conveyor belt which takes it to the concentrator. In the concentrator, primary SAG mill (We do not manufacture) and secondary ball mills grind the rock until it is a fine powder, Then the copper rock is crushed and screened, with the fine sulfide rock going to froth flotation cells for recovery of copper.Copper mining is usually in open copper mines or underground copper mine. First the copper ore is blasting, loading to the primary crusher. In the primary crusher, the ore is broken into small pieces with diameters less than 25cm. And then Crushed ore is loaded on the conveyor belt to storage slot. In the storage, ball mill or grinding mills such like Raymond Mill, High Pressure Suspension Mill, Three- ring Micro Powder Mill, can grind it to powder. The finished product granularity can be classified according to requirement. And copper ore dedust equipment can be equipped additionally for environment protection. Most copper rocks contain only a small percentage of copper metal bound up within valuable rock minerals, with the remainder of the rock being unwanted rock or gangue minerals, typically silicate minerals or oxide minerals for which there is often no value. The average grade of copper rocks in the 21st century is below 0.6% Cu, with a proportion of rock minerals being less than 2% of the total volume of the rock rock. A key objective in the metallurgical treatment of any rock is the separation of rock minerals from gangue minerals within the rock.china made crushers: http://www.breaker-machine.com/impact-crusher/made-in-china-crushers.html