Jama is now completing the first unit of an order of 3 Rock breakers for LKAB in Kiruna, Sweden. The machine is operated from a control room above ground and has a weight over 40 tonnes. It is equipped with a 4-tonne hydraulic breaker that breaks the rocks that are too big to pass the grizzly with openings of 0.5 * 0.5 m.
http://www.jama.se