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Surface DTH drill rigs

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A Down-The-Hole Drill is called DTH in most drilling terms. The down-the-hole drill is basically a mini jack hammer that screws on the bottom of a drill string. The fast hammer action breaks hard rock into small flakes and dust and is blown clear by the air exhaust from the DTH hammer. The DTH hammer is one of the fastest ways to drill hard rock. Now smaller portable drillcat drilling rigs with DTH hammers can drill as fast as much larger truck rigs with this newer technology.

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Technical Specifications
Type of engine Deutz D914 L05 2V (72,5 kW at 2300 rpm) step III, air cooled
Tube holders size 360 mm
Max speed 655 rpm
Rotary drive, type RH130
Torque 13000 Nm
Foampump 30 l/min, 25 bar
Air systems DTH hammer lubricator system rated to 30 bar
Hydraulic systems Hydraulic system is based on load-sensing technology and two hydraulic pumps
Lifting capacity 91 kN

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