High Air Pressure DTH Hammer with Foot Valve

Length: 930-1880mm
External Diameter:82-275mm
Hole Range:90-445mm
Working Pressure:1.0-1.5Mpa

product Introduction

The DTH hammer is also called pneumatic drill hammer. It is the power machine on the hole bottom that takes compressed air as the dynamic medium and uses the energy of compressed air to generate a continuous impact load. The compressed air can also be used as washing medium. It is mainly used in hydrological well drilling, core-free geological drilling, geological disaster prevention engineering and mine drilling. It is applicable for gravel and hard rock, it can also be used in soft soil when equipped with special structure drill bit.


  • 1Valveless air distribution, more reliable.
  • 2The piston is simple in structure and not easy to damage.
  • 3More efficient energy transfer, fast drilling speed, low air consumption and low oil consumption.
  • 4 Fewer internal parts, simple structure, and all parts are hardened by heat treatment, so the hammer has long service life, less failure and convenient maintenance.
  • 5Easy to disassemble because the top sub and drive chuck are connected with the external cylinder by multiple thread.


Length (bit excluded) Weight (bit excluded) External diameter Hole range Working pressure Impact frequency Recommended rotation speed Air consumption
930mm 25kg 82mm 90-110mm 1.0-1.5Mpa 28HZ(1.5Mpa) 25-40r/min 1.0Mpa 1.5Mpa
4.5m3/min 9.0m3/min
1030mm 39kg 99mm 110-135mm 1.0-2.5Mpa 27HZ(1.7Mpa) 25-40r/min 1.0Mpa 1.8Mpa 2.4Mpa
6m3/min 10m3/min 15m3/min
1214mm 76.5kg 125mm 135-155mm 1.0-2.5Mpa 25HZ(1.7Mpa) 20-35r/min 1.0Mpa 1.8Mpa 2.4Mpa
9m3/min 15m3/min 23m3/min
1248mm 100.0kg 142mm 155-190mm 1.0-2.5Mpa 23HZ(1.7Mpa) 20-30r/min 1.0Mpa 1.8Mpa 2.4Mpa
10m3/min 20m3/min 28.5m3/min
1212mm 95kg 148mm 155-190mm 1.0-2.5Mpa 23HZ(1.7Mpa) 20-30r/min 1.0Mpa 1.8Mpa 2.4Mpa
10m3/min 20m3/min 28.5m3/min
1492mm 188kg 180mm 195-254mm 1.0-2.5Mpa 20HZ(1.7Mpa) 20-30r/min 1.0Mpa 1.8Mpa 2.4Mpa
15m3/min 26m3/min 34m3/min
1465mm 182kg 185mm 195-254mm 1.0-2.5Mpa 20HZ(1.7Mpa) 15-25r/min 1.0Mpa 1.8Mpa 2.4Mpa
15m3/min 26m3/min 34m3/min
1502mm 290kg 225mm 254-311mm 1.0-2.5Mpa 18HZ(1.7Mpa) 15-25r/min 1.0Mpa 1.8Mpa 2.4Mpa
22m3/min 40m3/min 55m3/min
1880mm 487kg 275mm 305-445mm 1.0-2.5Mpa 16HZ(1.7Mpa) 15-25r/min 1.0Mpa 1.8Mpa 2.4Mpa
30m3/min 56m3/min 78m3/min


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