Rudna Mine is located in Lower Silesia, north of Polkowice city. The mine extracts mostly “Rudna” deposit, but it also develop and exploit parts of “Sieroszowice” and “Głogów Głęboki-Przemysłowy” deposits. Industrial resources of Rudna Mine (according to state on 31.12.2015) in four operated deposits are 432 million Mg of copper ore. Average grade of copper amounts to 1,88 %, average grade of silver – 62,52 g/Mg.
Among the Polish copper deposits operated by KGHM, Rudna deposit stands out the thickest orebody - up to even over a dozen meters; average thickness of Rudna deposit is over 4 meters nowadays and over 70% of resource is over 3 meters thick. In Rudna deposit the dominant part of ore is sandstone ores – around 80% of resources, carbonate ores represent approximately 15% and Copper-bearing shale(Kupferschiefer) only 5% of total deposit mass. Copper-bearing Shale (Kupferschiefer) contain the highest grade of copper – over 6% of Cu. The depth of copper orebody in Rudna deposit range from 844 m up to 1250 m in depth, and Głogów Głęboki-Przemysłowy deposit is up to 1385 m in depth.
The Rudna mine is the youngest mine in the Copper Belt. It was build on a grand scale on the basis of experience from construction and operation of the Lubin and Polkowice mines.
The Rudna mine started its mining operations in 1974. It was a challenging project, but it met all the expectations, as reflected in the dynamic increase in output: in the first year of its operation, output was 1.9 million tonnes of ore, but by 1982 this had increased to 11.3 million tonnes.
Currently, average annual ore extraction by the Rudna mine is 12 million tonnes. Owing to the siting of Rudna's infrastructure, access has been opened to the very valuable Deep Głogów copper ore deposit. This project, whose goal is to make these deposits available, is one of the priority undertakings of KGHM.
Mining in the Rudna mine is carried out in three mining regions: Rudna Central, the R-IX Region and Rudna North. There are 11 operating shafts:
- 3 for extraction,
- 4 for ventilation
- and 4 for personnel and materials.
They are all from 950 to 1150m deep. The production process is based on the room-and-pillar method. The extraction of ore is done by blasting, during both the preparatory-access and extraction phases. Loading/haulage machinery and ore haulage vehicles are used to remove the ore from the working faces. Conveyor belts are used for the main horizontal transport.