Place: Colombia
Time: August 2013
Mine & project: Rio Negro, gold mining
DTH Drill rig: Atlas Copco ROC L6
DTH button bits configurations: DHD340A 115mm, flat face, hemispherical buttons, 2 flushing holes;
Rock formation: Brecciated silica with clay matrix and disseminated sulfide mineralization, detailed photos as below:
Average life span of our DHD340A 115mm DTH button bits: 480 meters;
Average life span of a world-famous brand A’s DHD340A 115mm button bits: 520 meters;
Considering different prices from our company and the world famous brand A, as below, the chart shows a drilling cost comparison between our brand and the world famous brand A.
As below, here are some pictures about our DHD340A 115 mm button bits performance:
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