NSD10A DTH Hammer Technical Data
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Length (Less bit)
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Weight (Less bit)
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External diameter
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Bit Shank
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Hole Range
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Connection Thread
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1525mm
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316.00kg
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Φ226mm
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SD10
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Φ254-Φ311
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API6 5/8”Reg
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Working Pressure
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Impact rate at 1.7Mpa
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Recommended rotation speed
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Air consumption
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1.0Mpa
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1.8Mpa
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2.4Mpa
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1.0-2.5Mpa
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20HZ
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15-25r/min
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22m³/min
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40m³/min
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65m³/min
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Item Description
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Weight (kg)
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Part Number
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1. Top Sub
2. “O” Ring of Top Sub
3. Breakout Ring
4. Check Valve
5. Spring
6. Air Distributor
7. Internal Cylinder
8. Piston
9. External Cylinder
10. Guided Sleeve
11. “o” Ring of Stop Ring
12. Stop Ring
13. Breakout Ring
14. Drive Chuck
15. Drill Bit
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59.00
0.03
0.50
1.40
0.30
10.50
12.50
77.00
110.00
11.50
0.01
1.50
0.50
31.50
108.00
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NSD10A01
NSD10A02
NSD10A03
NSD10A04
NSD10A05
NSD10A06
NSD10A07
NSD10A08
NSD10A09
NSD10A10
NSD10A11
NSD10A12
NSD10A13
NSD10A14
NSD10A15
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It has the following advantages:
1. Out of the trouble of foot valve fracture and expansion and contraction.
2. Lower energy consumption and higher impact frequency. The drilling speed is 15%-30% higher than the one with foot valve.
3. Simple structure, reliable parts, long life, easy and cheap maintenance.
4. Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve.