5’’ HD55A DTH Hammer is a 6” inches DTH hammer that is used for drilling a water well borehole or a blasting borehole in a mining factory, a 5’’ HD55A DTH hammer is very popular in the market. 5’’ HD55A DTH hammer (down-the-hole hammer) is a drill tool that is installed to the end of a drill pipe and drills through rocks. It’s a kind of small jackhammer that is used to break hard rock into small particles. A DTH hammer drills through the hard rock layers that lie in a water well borehole.
Model: HD55A 5” inches
- Length: 1090mm
- Weight: 67kg
- Diameter: φ126mm
- Drilling hole range: φ155-190mm
- API: API2 3/8″Reg, API3 1/2″Reg, API2 7/8″Reg
- Compressed air pressure: 1.3-2.3Mpa
- Air consumption: 1.0Mpa:7m³/min, 1.8Mpa:14m³/min, 2.4Mpa:19m³/min
- Rotate speed: 20-35r/min
5’’ HD55A DTH Hammer is for Drilling bits:φ155mm-φ190m.
5’’ HD55A DTH Hammer attaches tightly onto the end of a drill pipe by screws, it’s air-powered with a high cyclic rate; Because 5’’ HD55A DTH hammer is pneumatically powered, it has air exhaust holes that blow the stone chips and dust out from the borehole. Small portable drill rigs equipped with a DTH hammer can drill through rocks as quickly as large truck drill rigs do.