KAT DRILLING
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Our DTH hammers are widely used for mining, quarrying, road construction, drilling and blasting work, water well drilling, slope protection, anchoring, and more.
| 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 | 928 (mm) |
| Top sub thread | API 2 3/8" REG PIN |
| Outside diameter | 82 (mm) |
| Weight | 25 (KG) |
| Bit diameter | 90-110 (mm) |
| Working Pressure | 10-17 (Bar) |
| Air consumption | 4.5-8.5 (M3/min) |
| Bit shank | DHD3.5 |
The DHD3.5 hammer is widely used for mining, quarrying, road construction, water well drilling, and anchoring projects where high-pressure drilling is required.
No, the DHD series (including DHD, QL, and MISSION) features a valve-less design optimized for high performance even at lower operating air pressures.
No, the wear sleeve for the DHD series DTH hammers is designed as non-reversible.
The DHD3.5 is specifically designed for a hole range between 90mm and 110mm.
All critical internal components undergo strict heat treatment processes to maximize tool longevity and withstand heavy-duty applications.
The recommended working pressure for the DHD3.5 DTH hammer is between 10 and 17 Bar.
