KAT DRILLING
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DTH hammers are engineered with advanced drilling theory, capable of delivering superior energy transfer and faster drilling speeds while maintaining lower air consumption. Utilizing premium steel and advanced manufacturing techniques, these hammers ensure stable performance, extended service life, and ease of assembly or repair.
These hammers are widely utilized across various sectors, including:
We offer a comprehensive range of pressure series:
| 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 | ||
| 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 |
| Hammer Length without bit | 1112 (mm) |
| Top sub thread | API 2 3/8" REG PIN |
| Outside diameter | 126 (mm) |
| Weight | 70.5 (KG) |
| Bit diameter | 136-155 (mm) |
| Working Pressure | 1.0-2.5 Mpa |
| Air consumption | 7-13 (M³/min) |
| Bit shank | Mission50 |
The Mission50 is versatile and widely used in mining, quarrying, water well drilling, and road construction for efficient drilling and blasting operations.
The valve-less design allows for high performance even at lower operating air pressures, effectively maximizing energy output while minimizing mechanical failure points.
The optimal working pressure for the Mission50 DTH hammer ranges from 1.0 to 2.5 Mpa, depending on the geological conditions and required penetration speed.
Yes, the Mission series is designed for simplicity, making it easy to assemble and repair, which reduces downtime during field operations.
Absolutely. All critical internal components are heat-treated under strict quality control to ensure maximum durability and a long tool service life in abrasive conditions.
