KAT DRILLING
1 / 1
Valveless Technology
Designed for high performance at low operating air pressure, ensuring efficient drilling cycles.
Robust Design
Suitable bits feature a strong design without foot valves to withstand heavy-duty applications.
Maximum Longevity
All critical internal components are heat-treated under strict control to maximize tool life.
Our DTH hammers are widely utilized across various industrial sectors for demanding drilling and blasting tasks, including:
• Mining & Quarrying
• Water Well Drilling
• Road Construction
• Slope Protection
• Anchoring Projects
• Foundation Engineering
| Type | Model | Length (mm) | Weight (kg) | External Dia. (mm) | Hole Range (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 |
| Hammer Length (without bit) | 1102 (mm) |
|---|---|
| Top Sub Thread | API 2 3/8" REG PIN |
| Outside Diameter | 99 (mm) |
| Weight | 43.7 (KG) |
| Bit Diameter | 110-135 (mm) |
| Working Pressure | 10-22 (Bar) |
| Air Consumption | 5.5-10 (m³/min) |
| Bit Shank | QL40 |
The QL40 is widely used in mining, quarrying, road construction, water well drilling, anchoring, and slope protection projects.
The valveless design means the hammer is engineered to achieve high performance even at low operating air pressures while reducing internal complexity and service needs.
The QL40 operates efficiently within a working pressure range of 10 to 22 Bar.
No, the wear sleeve in this specific series is designed to be non-reversible.
The QL40 is compatible with bit diameters ranging from 110mm to 135mm.
All critical internal components undergo strict heat treatment processes to ensure maximum tool longevity and wear resistance during heavy-duty applications.
