ME & WE
ZHANGYUXIN ZHANGYUXIN
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1. Description:
- For medium to hard and dense formations such as shale, mudstone, limestone, sandstone, dolomite, anhydrite, siltstone, and mudstone.
- Cubic TSD cutters 1/8 x 1/8 x 1/8 in³.
- Double cone profile with sharp nose and tapered flank.
- Natural diamond gages.
- Tungsten carbide bit body.
- Feeder/Collector fluid course.
Roof drill bit is the most basic part of roadway support in coal mine and Engineering construction.
PDC is a new-fashioned superhard compact material. It not only has the feature of wear-resisting of polycrystalline diamond, but also has the advantage of lash-resisting, high-elasticity ofalloy. Anchor rod bit made by PDC has the characteristic of long-longevity, high-efficiency, long-adaptability.
2. Specification:
PDC Drill Bit type & rock formation
| Type | Rock formation | |
 | Standard PDC Drill Bit- half cutter | F＜8 |
| Standard PDC Drill Bit | F=6~10 |
| PDC Drill Bit- half cutter | F=10~12 |
| PDC Drill Bit | F=10~12 |
3.Application:
Mining & Coal Mining
Engineering construction
| Soft rock (coal, clay, mudstone) | Medium hard rock (sandstone, limestone, marble) | Hard rock (tunnel, quartzite, granite) | Remarks | ||
| PDC Drill Bit | | ✔ | ✔ | ||
| ✔ | ✔ | ✔ | ||
| ✔ | ✔ | ✔ | ||
| ✔ | ✔ | |||
| Coal Mining Drill Bits | | ✔ | Soft rock is suitable for use | ||
| ✔ | ✔ | ✔ | Fast drilling | |
| ✔ | ✔ | Long use time | ||
| PDC Core Bit | | ✔ | ✔ | Fast drilling | |
| ✔ | ✔ | Long use time | ||
4.Feature
Compared with tungsten carbide, PDC roof drill bit has the following advantages:
The usage of PDC roof drill bit lessens the work strength. Due to the longevity, workers working underground no longer need to shoulder huge quantities of tungsten carbide roof drill bit, they only need to bring two 80g PDC roof drill bits, in the meanwhile they don't need to take the trouble to change the roof drill bits and go up oftenly to enshrine the roof drill bits.