7 1/2 inch steel tooth bit roller bit
Samples:IADC 116
$795.00/Piece | 1 Piece (Min. Order)
Main Features
1) Tci tricone Bit Connection made according to API standard.
2) We can adjust the bit size according to your rig.
3) The best result can be obtained by using the steel-tooth bit in the soft stratum. If mining in hard formation, TCI tricone bit is recommended. Apply to Construction, Water Drilling, Mining, Horizontal Directional Drilling, Geothermal and Environ-mental.
Size of tricone bit
7 1/2" (190mm)
Thread Connection
41/2"API reg pin
IADC CODE
116 117 126 127 136 137
Bearing type
rubber o-ring sealed journal bearing
Operating Parameters
WOB (Weight On Bit)
0.35~1.05 KN/mm (bit Dia.)
Rotary speed
150~60 r/min
Make up torque
16.3~21.7 KN.M
Formation
Medium formation with high compressive strength ,and high drillability ,such as mudstone,gypsum,salt,soft limestone,etc.
|
IADC CODE
|
Rock formation
|
WOB
|
PRM(r/min)
|
|
417
|
Low compressive strength, high drill-ability and extremely soft formation,like shale,clay ,sandstone,conglomerate etc.
|
0.35~0.90
|
140~70
|
|
437
|
Low compressive strength, high drill-ability and soft formation,like shale,clay,sandstone,soft limestone,salt rock,etc.
|
0.35~1.00
|
140~60
|
|
517
|
Low compressive strength,high drill-ability and soft formation ,like shale,clay,sandstone,soft limestone,salt rock,etc.
|
0.35~1.05
|
120~50
|
|
537
|
Low compressive strength,medium hard formation with hard abrasive interlayer,like Hard shale ,anhydrite,soft
limestone,sandstone,dolomite with messanine,etc. |
0.50~1.05
|
110~40
|
|
617
|
High compressive strength,medium hard and thick hard interlayer,like hard shale,limestone,sandstone,dolomite,etc.
|
0.50~1.05
|
80~40
|
|
637
|
High compressive strength,medium hard and high abrasive formation,like limestone,dolomite,sandstone,chert,etc.
|
0.70~1.20
|
70~40
|
|
Regular Size
|
API REG PIN
|
Regular Size
|
API REG PIN
|
|
3 7/8(98mm)
|
2 3/8
|
4 5/8(118mm)
|
2 7/8
|
|
5 5/8(142.8mm)
|
3 1/2
|
5 7/8(149.2mm)
|
3 1/2
|
|
6(152.4mm)
|
3 1/2
|
6 1/2(165)
|
3 1/2
|
|
7 1/2(190mm)
|
4 1/2
|
7 5/8(193mm)
|
4 1/2
|
|
8 1/2(215.9)
|
4 1/2
|
9 1/2(241.3mm)
|
6 5/8
|
|
10 5/8(269.8mm)
|
6 5/8
|
11 5/8(295.3mm)
|
6 5/8
|
|
12 1/4(311.15mm)
|
6 5/8
|
13 5/8(346mm)
|
6 5/8
|
|
15 1/2(393mm)
|
7 5/8
|
16(406.0mm)
|
7 5/8
|
|
17 1/2(445mm)
|
7 5/8
|
26(660mm)
|
7 5/8
|
Contact: sales@superdrill.com.cn
Phone: 86-18186993613
Tel: 86-18186993613
Company: Hubei Superdrill Equipment Co.,Ltd
Add: Building 3, Rainbow road,No.188 ; wuhan ;Hubei province
