Overview
| Use | Coal Mining | Place of Origin | Hunan, China |
| Machine Type | Drilling Tool | Thread type | Thread |
| Product name | Top Quality DTH Drill Use Diamond PDC Bits for Coal Tunnel Mining | Picture Example | |
| Usage | Coal Tunnel Mining | Port | Shenzhen |
| Type | DRILL BIT | Applicable Industries | Energy & Mining |
| Brand Name | Jingxin | Material | Steel and PDC |
| Packing | Plastic Box | Video outgoing-inspection | Provided |
| Condition | New | Machinery Test Report | Provided |
| Processing Type | Casting | Supply Ability | 1000 Piece/Pieces per Month |
| Marketing Type | Ordinary Product | Warranty | 6 Months |
| Diameter | 75mm,94mm,113mm,133mm,153mm,171mm | Advantage | Durable |
| Application | Rock Drilling | Showroom Location | None |
| Certification | ISO9001 | Key words | PDC Bits |
| Packaging Details | 1pc /wooden package | Weight (KG) | 2 |
| MOQ | 10pcs | ||
Product Details
Products Description
Diamond PDC coreless drill bit
PDC coreless drill bits are made of Polycrystalline Diamond Compacts with high density cloth teeth with PDC cutter, which has the characteristics of high wear resistance and high drilling efficiency, suitable for drilling in soft to medium hard strata (f≤10). The hydraulic design directly flushes the cutting tooth front.
With high drilling speed higher service life. Mainly used for drilling of gas extraction holes, water discharge holes, grouting holes, geological drilling, hydrological exploration, etc.
Application of PDC bits:
1, Used in geology, coalfield, metallurgy, building materials, mining core drilling.
2, For drilling of core projects such as highway, railroad, bridge, housing construction, hydropower, etc.
3, For grouting and reinforcing drilling of soft and dangerous rocks, foundation treatment, broken strata, etc.
4, For large-diameter engineering drilling, hydrological water well drilling, construction pile foundation and inverted vertical hole construction drilling.
5, Used for pit ventilation, exhaust, rock building monitoring drilling and concrete sampling drilling.
Specifications:
Diameter of PDC non-coring drill bit (tri-wing drill bit): 75mm,94mm,113mm,133mm,153mm,171mm, can be used with 50 drill pipe or 42 drill pipe, or 60 drill pipe
Recommended parameters of drilling procedure for PDC bits
No. | Diameter mm | Bit pressure Kg | Revolving speed RPM | Pump output L/min |
1 | φ28 | 300-700 | 300-350 | 150-200 |
2 | φ30 | 300-700 | 300-350 | 150-200 |
3 | φ32 | 300-700 | 300-350 | 150-200 |
4 | φ48 | 300-700 | 300-350 | 120-160 |
5 | φ56 | 320-800 | 250-350 | 130-180 |
6 | φ75 | 480-1200 | 200-300 | 150-200 |
7 | φ94 | 640-1600 | 150-250 | 200-250 |
8 | φ110 | 880-2200 | 120-200 | 200-300 |
9 | φ152 | 1500-3000 | 100-200 | 500-850 |
10 | φ190 | 1800-4000 | 100-200 | 600-1200 |
11 | φ230 | 2200-4500 | 100-200 | 750-1400 |
12 | φ270 | 2400-5000 | 100-200 | 1000-1500 |
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