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Down The Hole DTH Hammer

Quantity:
  • DHD3.5, DHD340, DHD350, DHD360, DHD380
  • Jinquan
  • China
  • Ply-wooden cases
  • Within 15-25 days according to your order quantity
  • 1
  • T/T
Jinquan produce the most comprehensive range of Down hole DTH drilling hammers, which are used for blast hole drilling and water well drilling projects, constructions, quarrying, drilling, mining, oil, gas etc. Always DTH hammers are worked matched with DTH drill pipes and DTH drill bits. Moreover, we could produce the Reverse Circulation RC hammers also, suitable for wide working applications.
 
Sizes: 3", 4", 5", 6", 8", 10", 12", 14" etc.
Shank: COP/ SD/ DHD/ IR/ Mission/ QL/ BR/ CIR etc.
Quality: 90% similar to Atlas Copco, Sandvik, Mincon, Robit, Boart Longyear etc.
Specification: Weight (kg) External diameter (mm) Connection thread Hole rang (mm) Impact rate Recommended rotation speed
Low air pressure DTH hammer CIR type 5 ~22 50~180 CIR 55~200 820 rpm  
Middle air pressure BR & COP type 10~30 70~110   85~115    
3 inch DTH hammer  
COP34/QL30 etc
24.5 81 API 2 3/8” Reg 90~110 28Hz (at 17 bar) 28 r/min
4 inch DTH hammer
COP44/DHD340 etc
39.2 99 API 2 3/8” Reg 110~150 27Hz (at 17 bar) 25~40 r/min
5 inch DTH hammer
COP54/Mission50 etc
71.5 125 API 2 3/8” or API 3 1/2” Reg 135~165 25Hz (at 17 bar) 20~30 r/min
6 inch DTH hammer
COP64/QL60 etc
98 142 API 3 1/2” Reg 152~216 23Hz (at 17 bar) 15~25 r/min
8 inch DTH hammer
COP84/SD8 etc
188 180 API 4 1/2” Reg 203~305 20Hz (at 17 bar) 15~20 r/min

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No. 16, Industrial Park, Xihu Town, Yanggu County, Liaocheng City, Shandong Province, China (252311)
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