NQL6A DTH Hammer Technical Data
|
Length (Less bit)
|
Weight (Less bit)
|
External diameter
|
Bit Shank
|
Hole Range
|
Connection Thread
|
||
|
1183mm
|
92.00kg
|
Φ146mm
|
QL60
|
Φ155-Φ203
|
API3 1/2”Reg
|
||
|
Working Pressure
|
Impact rate at 1.7Mpa
|
Recommended rotation speed
|
Air consumption
|
||||
|
1.0Mpa
|
1.8Mpa
|
2.4Mpa
|
|||||
|
1.0-2.5Mpa
|
25HZ
|
20-30r/min
|
9m³/min
|
18m³/min
|
26m³/min
|
||
|
Item Description
|
Weight (kg)
|
Part Number
|
|
1. Top Sub
2. “O” Ring of Top Sub
3. Check Valve
4. Spring
5. Air Distributor
6. Internal Cylinder
7. Piston
8. External Cylinder
9. Guided Sleeve
10. “o” Ring of Stop Ring
11. Stop Ring
12. Drive Chuck
13. Drill Bit
|
20.00
0.015
0.70
0.10
3.50
4.20
23.00
30.00
4.00
0.01
0.60
5.50
25.00
|
NQL6A01
NQL6A02
NQL6A03
NQL6A04
NQL6A05
NQL6A06
NQL6A07
NQL6A08
NQL6A09
NQL6A10
NQL6A11
NQL6A12
NQL6A13
|
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.