The oreflow system consists of crushers, conveyors, and ore passes to transport ore from the mine to the mill. The OHS consists of crushers, conveyors, and stackers to place overburden from the Grasberg open-pit mine in stockpiles in Lower Wanagon.
Oreflow and OHS (Overburden Handling System)
Ore Crushers
One unit 63" x 114" Krupp Gyratory Crusher (#6)
One unit 60" x 113" Krupp Gyratory Crusher (#7)
OrePass
Four pieces with a diameter of 6 to 7 meters, 660 meters high.
Ore Crushers
One unit 54 "x 77" Fuller Crusher (the second unit was held during the 50K Expansion Project).
Stacker
150 meter semi-mobile Krupp Stacker.
Crusher
One unit 63 "x 114" Krupp Gyratory Crusher (# 8) One unit 60 "x 89" Fuller Gyratory Crusher (formerly used as Crusher # 5).
* Depending on the availability of various types of materials, the OHS system is projected to operate at 135,000 tons / day.
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