bit Diameter:444.5mm
bit IADC code:517/537
Nozzles: 3 lateral jet nozzles
bearing type: rubber sealed Journal
drilling speed: 40-180 RPM
drilling pressure:0.35-1.0KN
dimension:455*455*650mm
weight: 220/260kg
Application formation:
low compressive strength, the soft, hard abrasive interlayer, such as hard shale, anhydrite, soft limestone, sandstone, dolomite, etc
spoon-shaped top side in rows of teeth, wedge-shaped outer rows of teeth, tooth cloth is not equidistant
pakcages:fumigation wooden case
delivery time:2days for stock, 35 days for manufacturing
Recommend Drilling Technical Parameters
|
IADC code
|
WOB(KN/mm)
|
RPM(r/min)
|
Suitable formation
|
116,117
|
0.35-0.80
|
40-180
|
Very soft
|
126,127
|
0.35-0.90
|
40-180
|
Soft
|
136,137
|
0.35-1.00
|
40-160
|
Soft to medium
|
216,217
|
0.4-1.00
|
60-120
|
medium
|
417,437
|
0.35-0.90
|
40-180
|
Very soft
|
517,527
|
0.40-0.95
|
40-160
|
Soft to medium
|
537,547
|
0.45-1.00
|
40-120
|
Medium to hard
|
617,627
|
0.45-1.05
|
40-90
|
Hard
|
637
|
0.50-1.20
|
50-80
|
Very hard
|
The Advantages to Use Tricone BitsThan Other Kinds of Rock Bits
1) There is a tricone suitable for any rock formation
2) Tricone bits are versatile and can handle changing formations
3) Tri cones Are reasonably priced with long life and good rate of drilling