Hydraulic System 8 3/4 Inch PDC Core Bits
Product Description
1. The bit is suitable for soft to medium soft formations.
2. Cutting structure is force balanced, bit blade is asymmetrically designed, and spiral blade and spiral gage
are also designed so that the load on bit is balanced that resulting better stability of the bit.
3. Multiple types of high performance PDC cutter are strategically arranged on the bit for improved
service life the bit.
4. Shock absorbers are designed to make the bit capable of drilling through formations with hard stringers.
5. Hydraulic system of the bit is optimized using dynamic flow pattern simulation technology to enhance
cleaning and cooling effects of the bit to effectively prevent bit from balling.
6. Erosion on bit surface is effectively prevented by utilizing hardfacing material of highly erosion resistant
and applying advanced base metal enhancement technology.
7. Ports on bit are also optimally designed to prevent erosion of water courses inside the bit.
Recommended drilling parameters of PDC diamond bit
| Bit size (inches) |
Recommended drilling parameters |
| Flow rate |
Rotation speed(L/s) |
Weight on bit(KN) |
Specific Hydraulic Horsepower(HIS) |
Makeup torque (kn.m) |
| 8 1/2 |
25-38 |
60-250 |
100-30 |
2-7 |
24-26.5 |
| 8 3/4 |
25-38 |
60-250 |
100-30 |
2-7 |
24-26.5 |
| 9 1/2 |
25-38 |
60-250 |
100-30 |
2-7 |
40-45 |
| 12 1/4 |
44-60 |
60-250 |
150-30 |
2-7 |
50-60 |
Application:
PDC bits are used for water well drilling, geotechnical and environmental drilling, mineral exploration, geothermal wells, geothermal drilling, construction and utility work
Standard size:56,65,75,94,113,133,153mm(2inch to 6inch)
Wings/Blade:3,4
Thread :as requested
Suitable for soft to medium hard rock formations(f=1-8),not available in broken,fractured,strong abrasive formations.
Feature:
High quality polycrystalline diamond compact (PDC) cutters as the cutting teeth, the bits have stable quality, high drilling efficiency, long service life.You can select different types of PDC bits according to the characteristics of formations,and improve the overall drilling efficiency.
Jinzhou Shitan Machinery Equipment Co., Ltd. Main Products：
Pneumatic Drilling Rig / Air Drilling Rig（ST-180, ST-200, ST-260, ST-300, ST-350, ST-400, ST450, ST-450, ST-500, ST-600, ST-800 and other Pneumatic water well drilling Rigs.）, Crawler Water Well Drilling Rig / Trailer Mounted Drilling Rig / Water Well Drilling Rig / Hydraulic Borewell Machine / Hard Rock Drilling Equipment / Diamond Core Drill Rig / Geological Drilling Rig / Soil Testing Drilling Rig / Portable Water Well Drilling Rig（ST-30，ST-50，XY-1A, XY-1B, XY-2, XY-2B, GK180, GK200, GY150, GY200 and 30 impact drill rig, ZLJ series tunnel drilling rig and other geological drilling machines）Crawler Track Undercarriage, Drilling Mud Pump（BW150,BW160,BW200,BW250,BW850 series Drilling mud pumps）, Drilling Air Compressor, Water Well Drill Bits（PDC Drill Bit， Tricone Bit， DTH Button Bit）, Water Well Drill Pipe, Drilling Rig Spare Parts( drilling rods , drilling rods joint , casing pipe, casing coupling, core tube, core tube coupling, lifters, automatic drop hammer, sampler, SPT tool, wrench fork, pad fork, lock joint), Track Transporter
OEM / ODM can accept. Good quality, professional after-sales service, welcome to order
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Hydraulic System 8 3/4 Inch PDC Core Bits Images
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