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Rotary drilling tool
After optimization design, the tooth arrangement is reasonable, and different tooth shapes and heights are designed for various rock formations, resulting in good drilling performance.
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Rotary drilling tool
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Structural characteristics
After optimization design, the tooth arrangement is reasonable, and different tooth shapes and heights are designed for various rock formations, resulting in good drilling performance.
Adopting detachable installation to solve the heating problem of bearing seals during welding and increase the service life of bearings.
The base can be repeatedly installed and used, reducing the frequency of on-site welding and greatly increasing work efficiency.
Targeted optimization of the bearing system, with high load-bearing capacity and long service life.
Widely used in the rotary drilling market, it can achieve high drilling efficiency.
Main models and recommended installation dimensions of the 8 1/2 ″ RA series engineering film:
| Model | Formations |
| 8 1/2 RA517 | Compressive strength<50MPa, in soft formations such as salt rock, schist, anhydrite, sandstone, siltstone, soft limestone, etc. |
| 8 1/2 RA537 | The compressive strength is 50-120MPa, in medium hard formations such as sandstone, slate, shale, limestone, etc. |
| 8 1/2 RA617 | The compressive strength is 120-190MPa, in hard formations such as quartzite, basalt, gabbro, limestone, dolomite, etc. |
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To: Hebei Ruishi Bits Manufacturing Co.,Ltd
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No. 502, Taishan North Road, Renqiu Economic Development Zone, Hebei China
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