KAT DRILLING
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Because of economy and powerful drilling capacity, the down the hole (DTH) hammer has become an advanced drilling tool for the drilling and mining industries. These hammers and drill bits are designed to work in perfect unison, delivering high penetration rates, long service life, and minimized operational costs.
| Type | Model | Length (mm) | Weight (kg) | Ext. 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 |
| Item | Length (mm) | Top Thread | Weight (kg) | Bit Dia (mm) | Pressure (Bar) | Air Consumption |
|---|---|---|---|---|---|---|
| CIR-50 | 628 | F32*8PIN | 5 | 50 | 4-10 | 3-5 m³/min |
| CIR-60 | 777 | F42*8PIN | 7.5 | 60 | 4-10 | 3-7 m³/min |
| CIR-65 | 745 | F42*10PIN | 13 | 65 | 4-10 | 6-12 m³/min |
| CIR-76 | 811 | F48*10PIN | 13.5 | 76 | 4-10 | 6-10 m³/min |
| CIR-90 | 855 | F48*10PIN | -- | 90 | 4-10 | -- |
DTH hammers offer high efficiency and penetration rates in hard rock formations. They minimize energy loss by delivering power directly to the drill bit, resulting in lower costs per foot drilled.
High-pressure hammers are ideal for deep wells and hard rock where speed is critical. Low-pressure hammers (like the CIR series) are more economical for shallow water wells and civil engineering projects with smaller compressors.
Yes, the hammer is designed with standardized threads (like F48*10PIN) to ensure interchangeability with most standard DTH bits and drill pipes in the industry.
Our hammers are manufactured from high-quality carbon steel and alloy steel, undergoing advanced heat treatment to ensure durability and a long service life under extreme conditions.
The inner structure is designed to be simple and robust. This allows for quick assembly and disassembly, making on-site maintenance straightforward and reducing downtime.
Standard colors include Red, Black, Yellow, and White, depending on the specific model and stock availability.
