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Low Pressure DTH Hammers

 

Our DTH hammer and bits are compatible with CIR, DHD,QL,SD,Mission, etc. series of Atlas and Sandvik etc. They are with high efficiency, low failure rate and long service life. Even for all kinds of high hardness, high abrasive rocks and other harsh conditions, our drilling tools can also realize efficient and economical drilling.

 

◆Type and Technical Specification of Low Pressure DTH Hammers 

Item GL65B GL70 GL76 GL80 GL90 GL90-1 GL110 GL150 GL170
Drilling Dia.(ф/mm) 68-70 72-74 74-76 80-82 90-130 90-130 110-150 150-185 170-250
Hammer Length(mm) 745 803 766 796 796 796 838 908 1023
Outside Dia.(ф/mm) 61.2 67.2 67.2 72 80.2 80 98 137 156
Weight(kg) 13 14 15 17 20 20 30 75 90
Working Pressure(Mpa) 0.5-0.7 0.5-0.7 0.5-0.7 0.5-0.7 0.5-0.7 0.5-0.7 0.5-0.7 0.5-0.7 0.5-0.7
AirConsumption(M3/Min.) 2.5 3 3 5 6 5.5 11 17 19.5
Torque(N.M) 51 70 75 81 110 120 180 340 420
Impact Frequency (Times/Min.) ≥810 ≥810 ≥810 ≥800 ≥820 ≥820 ≥830 ≥800 ≥790
Connection 1 M42×10×1.5P DZ50 M48×10×2P M48×10×2P M48×10×2P M48×10×2P API 2 3/8REG API 3 1/2REG API 3 1/2REG
Connection 2 ф37-4 ф43-6 ф44-4 ф50-6 ф54-6 ф54-6 ф65-6 ф90-6 ф98-6