DTH Hammer with High Air Pressure DHD350 Down The Hole Hammer Drilling
DHD350 hammers are designed to operate effciently at low air pressures and medium air pressures,using DHD series bits. With professional manufacturing experience in DTH hammer production, our factory can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards.It is durable for being produced with advanced craftwork and good material.
Lengtgh (Without bit) | Weight (Without bit) | External diameter | Bit Shank | Hole Range | Connection Thread (Top sub- drill pipe) | ||
1110mm | 53.6kg | ɸ116mm | COP54 DHD350 | ɸ127mm-ɸ146mm | API 2 3/8" Reg | ||
Working Pressure | Impact rate at 14bar (reference) | Speed recommended | Pull force recommended | Reference Air consumption(m3/min) | |||
10-25Bar | 30Hz | 30-60rpm | 9.0kN | 14Bar | 17.2Bar | 20.7Bar | 24Bar |
10.8 | 13.86 | 16.83 | 20.07 |
Main Features:
1.The operating air pressure are between 10Mpa and 25Mpa.
2.Valveless hammers.
3.Simple structure,easy to assemble and to disassemble,long life span.
4.Higher impact frequency and faster drilling speed.
5.Higher air consumption and higher oil consumption. A hole can be drilled on the check valve to provide more efficient cuttings discharge.
6.Especially suitable for quarrying.
7.Bit without foot valve
Packing:
High Air Pressure DTH hammers(3''-12'') we can offer:
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.
Company Information: