| Customization: | Available |
|---|---|
| After-sales Service: | No |
| Warranty: | No |
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The cutting rings of drill casings or core barrels are fitted with welding bars. By selecting the appropriate welding bars all types of soils and concrete (during construction of piled retaining walls) can be drilled through.
The welding bars are munted at the outer edges of the cutting wheels to ensure the necessary over-cut, we need to select the correct welding bars during the piling and drilling. The welding bars are mostly using for excavating clay, boulder, sand, weathered rock and hard rock.
1. The welding bar body is made by material ASTM4140, heat treatment with HRC38-42 hardness, so the welding bars have high toughness and wearable character.
2. Tungsten carbide tip is made from low press sintered and suitable grade selected according to target projects, which are to make sure the good performance during the working.
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