After sales Service Warranty Service Warranty 1 Year Type DTH Hammer Application DTH Drilling Coal Mining Quarry Certification CE ISO9001 2024 Condition New
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Get PriceBlow Frequency 30 60 Blows/Sec Top Hammer 25 35 Blows/Sec DTH Rod/Tube diameters 23 140 mm Top hammer drilling principle When the piston hits the shank kinetic energy in the piston creates a compressive wave in the string of drilling tools that will cause the bit to penetrate the rock
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