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Product Description

PDC core bits (mining and geotechnical)

Core bits incorporating Polycrystalline Diamond Cutters can be very cost effective and very productive in certain formations.

The surface of the disc-shaped cutting element consists of very fine synthetic diamond particles sintered together by a high pressure, high temperature process. Backing this diamond layer is a tungsten carbide stud which is brazed directly into the bit matrix by a special process. These cutters can take the enormous compressive and shear loads generated during drilling without failure or erosion.

PDC core bits are ideal for use on high powered drills at relatively low rotation speeds. Remarkable results have been obtained both in bit life and penetration compared with surface set bits. Core recovery is also enhanced due to the faster penetration.

PDC core bits may be used with water, mud or air flush.

PCD Core Bits are ideal for geotechnical drilling applications. They are suited for soft to medium hard formations, such as clay, shale, sandstone, limestone, marble, basalt, etc.

Properties

1. Special-shaped PCD  are embedded in the matrix as cutting media. High penetration rates are common due to maximum setting exposure of the PCD providing an aggressive cutting face. 
2. Manufactured with a very erosion resistant matrix. Inside and outside gauge diameter integrity is maintained with a combination  of natural diamonds and PCD pins. 
 3. As PCD is very wear resistant material, PCD core bits have a long bit life.

Two main types of PDC cutters are available such as the conventional flat design and dome.
Size Available:
1. A-Gauge Core Bits: AQ, AQ-RSG, AWG(AX), AWM, AWT, LTK48
2. B-Gauge Core Bits: BQ, BQ-RSG, BQ-2.400, BQ3, BWG(BX), BWM, BWT, LTK60, TBW
3. N-Gauge Core Bits: NQ, NQ-3.032, NQ2, NQ2-RSG, NQ3/NQTT, NQ3-RSG, NQ3-3.032, NMLC, NWG(NX), NWM, NWT, TNW
4. H-Gauge Core Bits: NQ, HQ-RSG, HQ-3.830, HQ-3.895, HQ3/HQTT, HQ3-RSG, HQ3-3.380, HQ3-3.895, HMLC, HWF-Long, HWF-Short, HWG(HX), HWT
5. P- Gauge Core Bits: PQ, PQ3, PWF-Long, PWF-Short

6. S- Gauge Core Bits: SWF-Long, SWF-Short
7. U- Gauge Core Bits: UWF-Long, UWF-Short
8. Z- Gauge Core Bits: ZWF-Long, ZWF-Short
9. T, TT, T2 &TB Series Metric Core Bits: T36, TT46, T2-46, TB56, TT56, T2-56, T2-66, T2-76, T2-76 coreline, T2-86, T2-86 coreline, T2-101, T2-101 coreline
10. T6 Series Metric Core Bits: T6-76, T6-86, T6-101, T6-116, T6-131, T6-146

11. T6S Series Metric Core Bits: T6S-76, T6S-86, T6S-101, T6S-116, T6S-131, T6S-146
12. B Series(ISO3552-1) Metric Core Bits: B36, B46, B56, B65, B76, B86, B101, B116, B131, B146
13. Chinese Standard Metric Core Bits for Single Tube Core Barrels:36,  46, 56, 59, 75, 91, φ 110,  130,  160,  170, 219, 275
14. Chinese Standard Metric Core Bits for Double Tube Core Barrels:  56,  59,  75, 91
15. Chinese Standard Metric Core Bits for Wireline Core Barrels: 59, ; 75, 91

We can supply kinds of I diamond core drill bits and reaming shells according to customer's special requirement. If you have special requirement of the products, please send detail parameter to us, we can produce as your request.