Description
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.
It also has the followingadvantages:
1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of DTH hammer designed according to newest rock drilling theory.
2. Smooth performance and long service life of DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.
3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of hammer.
4. Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.
5. Interchangeable with DTH bit and drill pipe
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 |
QL60 |
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.
The appearance of the picture is different from that of the actual product, and the actual product is the standard.
| NQL Series High Air Pressure DTH Hammers Without Foot Valve |
| Item Description |
Weight(kg) |
| NQL4A |
NQL5A |
NQL6A |
NQL8A |
NQL95A |
| 1, Top Sub |
6.50 |
13.70 |
20.00 |
34.00 |
35.00 |
| 2, “O” Ring Of Top Sub |
0.01 |
0.015 |
0.015 |
0.015 |
0.01 |
| 3, Breakout Ring |
- |
- |
- |
0.30 |
0.04 |
| 4, Chenck Valve |
0.35 |
0.70 |
0.70 |
1.20 |
1.20 |
| 5, Spring |
0.05 |
0.10 |
0.10 |
0.10 |
0.10 |
| 6, Air Distributor |
1.50 |
2.00 |
3.50 |
6.00 |
7.00 |
| 7, Internal Cylinder |
2.10 |
2.70 |
4.20 |
6.50 |
7.50 |
| 8, Piston |
8.50 |
15.00 |
23.00 |
42.50 |
48.00 |
| 9, External Cylinder |
15.20 |
24.00 |
30.00 |
59.00 |
75.00 |
| 10, Guided Sleeve |
1.80 |
3.00 |
4.00 |
6.30 |
12.00 |
| 11, “O” Ring Of Stop Ring |
0.005 |
0.01 |
0.01 |
0.01 |
0.01 |
| 12, Stop Ring |
0.20 |
0.40 |
0.60 |
1.40 |
1.70 |
| 13, Breakout Ring |
- |
- |
- |
0.30 |
0.40 |
| 14, Drive Chuck |
3.20 |
4.50 |
5.50 |
13.00 |
15.00 |
| 15, Drill Bit |
9.00 |
16.00 |
25.00 |
35.00 |
50.00 |
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