AngloGold Ashanti, Mponeng, South Africa

Cooling the world’s deepest mine

AngloGold_1sMost mines use water as their primary cooling medium. The water is cooled in a refrigeration plant either on the surface or under ground and distributed to various parts of the mine. The major disadvantage of this is the distance of the plant from the rock face, which increases energy and cost requirement.

AngloGold use IDE’s transportable ice for mine cooling, so reducing by four times the required mass flow of the cooling system. This massively reduces energy consumption and costs.


Client: AngloGold Ashanti, South Africa
Site: Mponeng, South Africa
Project Type: Vacuum Ice Maker (VIM) for Deep Mine Cooling
Technology: Vacuum Ice Maker (VIM)
Total Capacity: 9 x 3 = 27 MW Refrigeration
Commission Date: 1989/2009


  • Able to use any type of feed water, fresh or brackish.AngloGold_Featured_s
  • Environmentally friendly as uses water at a coolant.
  • Low energy consumption – 0.9kW/t.
  • Operates at any ambient temperature.
  • Vertical drive shaft greased bearing eliminates need for an oil system.
  • Desalination of water is an option as a by product of the ice making process.

"This is the deepest mine in the world so needs efficient and reliable cooling. Our VIMs produce 270 tons of ice each hour, an incredible feat."

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