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Specifications
1. DTH Hammer2.Efficient energy transfer
3.Faster drilling speed
4.Lower oil consumption
5.Longer life
8 Inch High Air Pressure DTH Hammer
High Air Pressure DTH Hammer with foot valve
It is a kind of valveless high air pressure DTH Hammer with foot valve.
It has the following advantages:
1. Valveless air distribution. More reliable.
2. Simple design of the piston, long life.
3. More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption.
4. Fewer internal parts, simple structure, longer life, less failure and easier to maintain because all the parts are heat treated.
5. Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread.
Example 1:
ND55
N---New Diamond
D---DHD Bit Shank
5---5hammer
5---The Fifth Generation Hammer
Example2:
NQL4
N------New Diamond
QL4---QL40 Bit Shank
8 Inch High Air Pressure DTH Hammer with Foot Valve
Style |
Length |
Weight |
External |
Bit Shank |
Hole Range |
Connection |
ND85 |
1492mm |
188.00Kg |
180mm |
Cop84/ DHD380 |
195-254 |
API 3 1/2 "Reg |
NSD8 |
1463mm |
192.00Kg |
180mm |
SD8 |
195-254 |
API 4 1/2 "Reg |
NQL8 |
1465mm |
182.00Kg |
180mm |
QL80 |
195-254 |
API 4 1/2 "Reg |
Before quotation, below information needed:
1. What kind of hole diamater will you drill?
2. What depth will you drill?
3. What kind of rocks you need to drill?
Delivery Time: 2 to 3 days after payment received if have stocks
7 to 15 days for production after payment received if no stocks
Payment: T/T in advance, L/C at sight
Shipping: By air or by sea
Quality Control: Make sure the best quality of every products before shipping out
8 Inch High Air Pressure DTH Hammer
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