DTH hammers are used for mine, quarry, road construction for the drilling and blasting work, water well drilling, slope protection, anchoring, etc.
Specification of DTH hammmer
| DTH hammer (inch) | Matched Dth bit Shank | Bit range |
| Metric | Inch |
| 3.5" | COP32/COP34/MACH303M30/DHD3.5/BR33 | 90mm-115mm | 3 1/2"-4" |
| 4" | COP44/DHD340/MACH44SD4/M40/QL40 | 105mm-152mm | 4 1/8"-6" |
| 5" | COP54/DHD350R/MACH50SD5/M50/QL50/BR5 | 133mm-165mm | 5 1/4"-6 1/2" |
| 6" | COP64/DHD360/SD6M/60/QL60/Bulroc BR6 | 152mm-254mm | 4 1/8"-10" |
| 8" | COP84/DHD380/SD8/QL80/M80 | 203mm-330mm | 8"-13" |
| 10" | SD10/NUMA100/TH10 | 254mm-380mm | 10"-15" |
| 12" | DHD1120/SD12/NUMA120/NUMA125 | 305mm-508mm | 12"-20" |
| 14" | TK14/NUMA125 | 400mm-550mm | 15 3/4"-22" |
| 18" | NUMA180/TK18 | 500mm-700mm | 19"-27 1/2"" |
| 24" | NUMA240/TK28 | 600mm-800mm | 23"-31 1/2" |
High air pressure DTH hammer:
1.High air pressure DTH hammer size from 3" to 12"(76mm-304mm)
2.Shank types including COP, QL,DHD, MISSION,HD,IR, SD,TD, etc.
3.Connect Thread : API 2 3/8" , API 3 1/2 , Reg-6 5/8"Reg etc.
Low Air Pressure DTH hammers:
1.CIR series Low air pressure DTH hammer includes: CIR55, CIR65, CIR70, CIR80, CIR 90, CIR110, CIR110W, CIR150, CIR170, CIR200W etc.
2.J series Low air pressure DTH hammer includes: J60C, J70C, J80B, J100B, J150B, J170B, J200B
R.C.(Reverse Circulation) hammmers
1.R.C. hammers includes:RC45,RC55,RC65,PR52 etc.
We Offer three types of Medium Pressure DTH Hammers that operating air pressure is between 0.7 Mpa to 1.75 Mpa. And all of the BR Medium Pressure DTH Hammers are valveless. Easy to disassemble and assemble., Ideal faster drilling speed and higher impact frequency. Drilling Diameter: 90mm-130mm Hammer Length: 700mm-800mm, External Diameter: 82mm, Impact Frequency: 25Hz. Air Consumption: 4 M3/min(0.7Mpa); 6M3/min(1.0Mpa); 8M3/min(1.4Mpa).
DTH (Down-the-hole) Hammer And Bits
High Air Pressure DTH hammers(3''-12''):
1.ND(DHD Shank) series high air pressure DTH hammer includes:DHD3.5,DHD340,DHD350R,DHD360,DHD380,DHD1120
2.QL series high air pressure DTH hammer includes:QL40,QL50,QL60,QL80
3.SD series high air pressure DTH hammer includes:SD4,SD5,SD6,SD8,SD10,SD12
4.NUMA series high air pressure DTH hammer includes:NUMA100,NUMA120,NUMA125
5.COP series high air pressure DTH hammer includes:COP44,COP54,COP64,COP84
Connect Thread : API 2 3/8" , API 3 1/2 , Reg-6 5/8"Reg etc.
We supply high pressure DTH hammers model SD, COP, DHD, BR, QL M series, N series, VKP from 2.5 inch to 12 inch with high efficiency.
Ehern Europe: foundation, piling
Western Europe: water well and geothermal drilling
Russia: Oil, infrastructure and mining.
South east asia: mining and geothermal
South Africa: mining and water well drilling
Middle east: water well drilling
Oceania: mining, exploration and water well drilling
South America: water well drilling and mining
