09:58 AM EST - Silver Standard Resources Inc. : announced today that its operations team has completed several mine and mill enhancements at the Pirquitas mine; and as a result, the mine continues toward delivering 2011 production guidance and long-term, predictable performance. In March, the tertiary crushing capacity at Pirquitas was upgraded with the installation of a Nordberg HP 500 cone crusher. On April 20, the ball mill was shut down for a re-build of its main gear box to enable the ball mill to operate at maximum capacity. Since recommencing ball mill production on May 3, the plant has produced an average of 4,200 tonnes per day for an effective annual silver production capacity of 10 million ounces at average reserve grades. Furthermore, the Company purchased four new Caterpillar 777F haul trucks to increase mine stripping capacity. Silver Standard Resources Inc.
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