QL50 Quarry Mining High Air Pressure DTH Hammer
DESIGN HIGHLIGHTS
- DHD/QL/MISSION series is a valve-less type hammers designed for high performance at low operating air pressure.
- Suitable bits have a strong robust design without foot valve to withstand heavy duty application.
- Series hammers maximize energy output and reduce service requirements.
- Wear sleeve is not reversible for optimized structural integrity.
- All critical internal components are heat treated under strict control to maximize tool longevity.
APPLICATIONS
They are widely used for mine, quarry, road construction for the drilling and blasting work, water well drilling, slope protection, anchoring, etc.
PRODUCT SERIES RANGE
- 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 |
QL50 Hammer Technical Specifications
| Hammer Length without bit: |
1154(mm) |
| Top sub thread: |
API 2 3/8"REG PIN |
| Outside diameter: |
126(mm) |
| Weight: |
73.5 (KG) |
| Bit diameter: |
135-155(mm) |
| Working Pressure: |
10-25(Bar) |
| Air consumption: |
9-15(M3/min) |
| Bit shank: |
QL50 |
Frequently Asked Questions
Q1: What are the primary applications for QL50 DTH Hammers?
A1: These hammers are extensively used in mining, quarrying, water well drilling, road construction, slope protection, and anchoring projects.
Q2: What is the advantage of the valve-less design in the QL series?
A2: The valve-less design allows for high performance even at low operating air pressures and helps in maximizing energy output while reducing maintenance requirements.
Q3: How is the durability of the internal components ensured?
A3: All critical internal components undergo strict heat treatment control to maximize tool longevity and withstand heavy-duty applications.
Q4: What is the recommended working pressure for the QL50 DTH Hammer?
A4: The QL50 hammer operates efficiently within a working pressure range of 10 to 25 Bar.
Q5: Does the QL50 hammer require a foot valve?
A5: No, the suitable bits for this series feature a robust design that does not require a foot valve, making it more durable in harsh drilling environments.
Q6: What hole sizes can be achieved with the QL50 model?
A6: The QL50 model is designed for a hole range of Φ135-155mm.
KAT DRILLING
