Pit & Quarry, January 2014
Drilling Blasting Attachment allows for quick transitions between digging and drilling The CPA 225E drilling attachment designed for use on excavators ranging in size from 15 to 25 tons enables operators to transition from digging to drilling in a matter of minutes Montabert says The CPA 225E drilling attachment can be transported between jobsites The 3197 lb drill measures 15 in to 3 in in diameter and up to 14 ft deep The addition of an optional 12 ft rod adder enables the CPA 225ER to reach a drill depth of 26 ft Standard features include an aluminum feed that provides 47 degrees of drill rotation as well as a Montabert HC50 drifter A radio controlled performance managing feature automatically analyzes drilling conditions and adjusts factors such as feed pressure feed speed anti jamming controls and percussion pressure www montabert com Two drill options for holes measuring 2 to 35 in Atlas Copcos FlexiROC T30 R radio remote control top hammer drill rig equipped with either a COP 1240 or COP 1640 drill is designed for 2 to 35 in holes The standard hydraulic carousel type rod handling system uses 12 ft rods The carousel carries four rods for a maximum drilling depth of 57 ft The FlexiROC T30 R comes with a Tier 4 Interim Cummins QSB45 turbocharged engine providing improved diesel consumption over the ROC D3 RRC predecessor the company says According to Atlas Copco the rigs low center of gravity and high ground clearance provide mobility over challenging terrain The FlexiROC T30 R can also handle specialized tasks such as installing self drilling anchors and drilling blastholes in hard rock and dimensional stone quarrying www atlascopco us Separate power supply not needed Hütte Bohrtechniks HBR 202 hydraulic crawler drill rig model similar in size to the companys HBR 203 model is available with an onboard electric or diesel motor without need for a separate power supply Although the 202 shares the same undercarriage and telescoping mast as the 203 thats where the similarities end according to dealer Atlas Copco Construction Mining Technique USA The HBR 202 features unique kinematics resulting from an upper structure that rotates 140 degrees left and right and extends fore and aft 137 in the company says Another addition is a new three speed Hütte HG28 low profile rotary head that provides 21000 ft lbs of torque with a clearance to the front face of less than 12 in www atlascopco us 22 PIT QUARRY January 2014 www pitandquarry com
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