8" Mining Drilling Hammer/Oil Mining DTH Hammer(QL80/QL95A)
Specifications
8" Mining Drilling Hammer1.Lower energy consumption
2.Higher impact frequency
3.Easy and cheap maintenance
4.Long life
8" Mining Drilling Hammer/Oil Mining DTH Hammer(QL80/QL95A):
1. 10 years manufacturing experience;
2. Certificate: ISO9001:2008
3. Material: Carbide
It is a kind of high air pressure DTH Hammer without footvalve, our newest design. It is also one of the most advanced DTH Hammers in the world.
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.
NQL95A DTH Hammer Technical Data
Length (Without Bit) |
Weight (Without Bit) |
External diameter |
Bit Shank |
Hole Range |
Connection Thread |
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1340mm |
203.00kg |
203mm |
QL80 |
216-254 |
API4 1/2Reg |
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Working Pressure |
Impact rate at 1.7Mpa |
Recommended rotation speed |
Air consumption |
||||
1.0Mpa |
1.8Mpa |
2.4Mpa |
|||||
1.0-2.5Mpa |
22HZ |
15-25r/min |
16m³/min |
28m³/min |
39m³/min |
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Item Description |
Weight (kg) |
Part Number |
|
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 |
35.00 0.01 0.40 1.20 0.10 7.00 7.50 48.00 75.00 12.00 0.01 1.70 0.40 15.00 50.00 |
NQL95A01 NQL95A02 NQL95A03 NQL95A04 NQL95A05 NQL95A06 NQL95A07 NQL95A08 NQL95A09 NQL95A10 NQL95A11 NQL95A12 NQL95A13 NQL95A14 NQL95A15 |
Our advantages:
We have advanced production equipments & talented researchers & technicians & rich experiences in R & D and production.
We use the best quality raw materials.
We adopt advanced production technology & strict testing procedure.
We passed ISO9001 quality management system certification.
We accept OEM manufacturing and produce on your design.

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