QL80 Quarry Mining High Air Pressure DTH Hammer
QL SERIES DTH Hammers: QL40 / QL50 / QL60 / QL80
DESIGN HIGHLIGHTS
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DHD/QL/MISSION series is a valve less type hammers designed for high performance at low operating air pressure.
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Suitable bits have a strong robust design without foot valve to withstand heavy duty application.
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DHD/QL/MISSION series hammers maximizes energy output and reduces service requirements.
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Wear sleeve is not reversible.
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All critical internal components are heat treated under strict control to maximize tool longevity.
APPLICATIONS
Widely used for mine, quarry, road construction for the drilling and blasting work, water well drilling, slope protection, anchoring, etc.
DTH Hammers Series Supply
• High pressure series
• Medium pressure series
• Low pressure series
• High efficiency high pressure series
• Reverse circulation series
| Type |
Model |
Length |
Weight |
External Dia. (mm) |
Hole Range |
| (mm) |
(kg) |
(mm) |
| 3.5 inch |
DHD3.5 |
930 |
25 |
Φ82 |
Φ90-110 |
| 4 inch |
DHD340 |
1030 |
39 |
Φ99 |
Φ110-135 |
| SD4 |
1084 |
40.5 |
Φ99 |
| QL4 |
1097 |
41 |
Φ99 |
| Mission40 |
1005 |
40 |
Φ99 |
| 5 inch |
DHD350 |
1214 |
76.5 |
Φ125 |
Φ135-155 |
| SD5 |
1175 |
72.5 |
Φ125 |
| QL5 |
1147 |
73 |
Φ125 |
| Mission50 |
1110 |
68.5 |
Φ125 |
| 6 inch |
DHD360 |
1248 |
100 |
Φ142 |
Φ155-190 |
| SD6 |
1261 |
100 |
Φ142 |
| QL6 |
1212 |
95 |
Φ146 |
| Mission60 |
1161 |
90 |
Φ146 |
| 8 inch |
D85 |
1492 |
188 |
Φ180 |
Φ195-254 |
| SD8 |
1463 |
192 |
Φ180 |
| QL8 |
1465 |
182 |
Φ180 |
| Mission80 |
1338 |
176 |
Φ180 |
| 10 inch |
SD10 |
1502 |
290 |
Φ226 |
Φ254-311 |
| NUMA100 |
1510 |
288 |
Φ226 |
QL80 DTH Hammers Specifications
| Hammer Length without bit: |
1333 (mm) |
| Top sub thread: |
API 41/2" REGPIN |
| Outside diameter: |
185 (mm) |
| Weight: |
190 (KG) |
| Bit diameter: |
195-254 (mm) |
| Working Pressure: |
12-24 (Bar) |
| Air consumption: |
15-28 (M3/min) |
| Bit shank: |
QL80 |
Frequently Asked Questions
What are the primary applications for QL series DTH hammers?
They are extensively used in mining, quarrying, road construction, water well drilling, slope protection, and anchoring projects.
What makes the QL series design high-performing?
The QL series features a valveless design that allows for high performance even at low operating air pressures while maximizing energy output.
What range of hole diameters can the QL80 model drill?
The QL80 model is designed for a bit diameter range of 195mm to 254mm.
How is the longevity of the internal components ensured?
All critical internal components undergo strict heat treatment control to maximize the tool's lifespan and durability in heavy-duty applications.
Does the QL series hammer require a foot valve?
No, the bits for this series are designed with a robust structure that does not require a foot valve, making them more resilient.
What air pressure is required for the QL80 DTH hammer?
The working pressure for the QL80 ranges from 12 to 24 Bar, with air consumption between 15 and 28 M3/min.
KAT DRILLING
