Description
Down the hole rock tools (drilling tools) are rock drilling equipment which takes compressed air as power source to partially transfer impact power into drilling holes. An air distributing device in a top hammer controls a piston to move back and forth. An impact device arranged in the front of the top hammer transfers the impact powderto a down-the-hole bit to crush rocks.
The new diamond dart impactor uses the latest drilling theory to design impactor, which enables the impactor to get the best energy transfer, fast drilling speed and low air consumption. The best quality of raw materials and the most advanced processing technology, stable performance and long life. Easy to use, easy to install and disassemble, easy to repair and easy to repair.
Applications
Widely used in mines, quarries, earthworks and other engineering drilling blasting hole, guardrail hole, mountain reinforcement, anchorage and other engineering holes, geothermal exploration hole, Well bore and other fields.
Specifications
|
NQL Series High Air Pressure DTH Hammers Without Foot Valve
Technical Data
|
| Length(Without Bit) |
NQL4A |
NQL5A |
NQL6A |
NQL8A |
NQL95A |
| 1070mm |
1090mm |
1183mm |
1330mm |
1340mm |
| Weight(Without Bit) |
40.00kg |
67.00kg |
90.00kg |
171.00kg |
203.00kg |
| External Diameter |
Ø99mm |
Ø126 mm |
Ø165mm |
Ø180/Ø185mm |
Ø203mm |
| Bit Shank |
QL40 |
QL50 |
QL600 |
QL80 |
QL80 |
| Hole Range |
Ø110-Ø135mm |
Ø155-Ø203mm |
Ø155-Ø203mm |
Ø195-Ø254mm |
Ø216-Ø254mm |
| Connection Thread |
API2 3”/8REG |
API2 3”/8REG
API3 1”/2REG
API2 7”/8REG
|
API3 1”/2REG |
API4 1”/2REG |
API4 1”/2REG |
| Working Pressure |
1.2-2.0Mpa |
1.3-2.3Mpa |
1.5-2.5Mpa |
1.5-3.0Mpa |
1.8-3.0Mpa |
| Impact Rate at 17 Bar |
30HZ |
28HZ |
25HZ |
22HZ |
22HZ |
| Recommended Rotation Speed |
20-30r/min |
20-35r/min |
20-30r/min |
15-25r/min |
15-25r/min |
| Air Consumption |
1.0Mpa:
5.0m³/min
1.8Mpa:
9.0m³/min
2.4Mpa:
14.0m³/min
|
1.0Mpa:
7.0m³/min
1.8Mpa:
14.0m³/min
2.4Mpa:
19.0m³/min
|
1.0Mpa:
9.0m³/min
1.8Mpa:
18.0m³/min
2.4Mpa:
26.0m³/min
|
1.0Mpa:
12.0m³/min
1.8Mpa:
22.0m³/min
2.4Mpa:
28.0m³/min
|
1.0Mpa:
16.0m³/min
1.8Mpa:
28.0m³/min
2.4Mpa:
39.0m³/min
|
Feature Advantage
Characteristic advantage
1 adopts the industry's leading heat treatment technology, and the steel hardness and wayward products are in the leading position.
2 alloy teeth adopt professional technology to greatly improve the strength of alloy teeth.
3 perfect after-sales security system and after-sales service tracking, the perfect solution to any problem of customers.
| NQL Series High Air Pressure DTH Hammers Without Foot Valve |
| Item Description |
Weight(kg) |
| NQL4A |
NQL5A |
NQL6A |
NQL8A |
NQL95A |
| Top Sub |
6.50 |
13.70 |
20.00 |
34.00 |
35.00 |
| “O” Ring Of Top Sub |
0.01 |
0.015 |
0.015 |
0.015 |
0.01 |
| Breakout Ring |
- |
- |
- |
0.30 |
0.04 |
| Chenck Valve |
0.35 |
0.70 |
0.70 |
1.20 |
1.20 |
| Spring |
0.05 |
0.10 |
0.10 |
0.10 |
0.10 |
| Air Distributor |
1.50 |
2.00 |
3.50 |
6.00 |
7.00 |
| Internal Cylinder |
2.10 |
2.70 |
4.20 |
6.50 |
7.50 |
| Piston |
8.50 |
15.00 |
23.00 |
42.50 |
48.00 |
| External Cylinder |
15.20 |
24.00 |
30.00 |
59.00 |
75.00 |
| Guided Sleeve |
1.80 |
3.00 |
4.00 |
6.30 |
12.00 |
| “O” Ring Of Stop Ring |
0.005 |
0.01 |
0.01 |
0.01 |
0.01 |
| Stop Ring |
0.20 |
0.40 |
0.60 |
1.40 |
1.70 |
| Breakout Ring |
- |
- |
- |
0.30 |
0.40 |
| Drive Chuck |
3.20 |
4.50 |
5.50 |
13.00 |
15.00 |
| Drill Bit |
9.00 |
16.00 |
25.00 |
35.00 |
50.00 |
Product Tags:
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High Strength Down The Hole Hammer Oil Drilling Tools 1.2-3.0Mpa Pressure Images
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