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HF445P Diamond Bit
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The optimized design of 6-blade type configuration,highly polished PDC compacts and cutter placement with balanced bit load enhances the overall performance of the bit.With balanced hydraulic design,Cuttings removal and bit cooling are optimized by matching the volume of rock removed by the cutters on each blade with the proportional fluid flow.The streamlined shape of the gage channels favors to the removal of hydraulic fluid and cuttings,detering balling initiation caused by vortices and eddies.
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| BIT SIZE（in) |
SPECIFICATIONS |
| NOZZLE（pcs） |
GAGE LENGTH（mm） |
API CONNECTION（in） |
| 8-1/2 |
4 |
65 |
4-1/2 |
| 12-1/4 |
8 |
120 |
6-5/8 |
| RECOMMENDED OPERATION PARAMETERS |
| HYDRAULIC FLOW RATE |
ROTATION SPEED |
WEIGHT ON BIT |
| （1/s） |
(gpm) |
(rpm) |
(KN) |
(Klbs) |
| 25-38 |
400-600 |
60-350 |
13-72 |
3-15 |
| 38-56 |
600-900 |
60-350 |
18-160 |
4-36 |
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HF535 Diamond Bit
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Deep blade configuration and larger diameter cutters layout make the bit run in medium soft formations with high rate of penetration,such as shale,chalk,sand and marl.
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| BIT SIZE（in) |
SPECIFICATIONS |
| NOZZLE（pcs） |
GAGE LENGTH（mm） |
API CONNECTION（in） |
| 8-1/2 |
4 |
90 |
4-1/2 |
| 12-1/2 |
6 |
65 |
6-5/8 |
| 17-1/2 |
10 |
100 |
7-5/8 |
| RECOMMENDED OPERATION PARAMETERS |
| HYDRAULIC FLOW RATE |
ROTATION SPEED |
WEIGHT ON BIT |
| （1/s） |
(gpm) |
(rpm) |
(KN) |
(Klbs) |
| 25-38 |
400-600 |
60-350 |
13-71 |
3-16 |
| 38-60 |
600-950 |
60-350 |
13-140 |
3-31 |
| 60-90 |
950-1450 |
60-250 |
17-180 |
4-40 |
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