4 5/8" TCI tricone bit is widely used in water well drilling, exploration, HDD pilot hole, foundation piling, it has a central jet hole design, so it is also workable for reverse circulation drilling.
The bearing is sealed, the working life is much longer than open bearing roller bits.
This type of steel teeth tricone bit has a central hole which is suitable for RC drilling( Reverse Circulation drilling).
IADC216 tricone bit could drill harder formations than IADC126, choosing the proper IADC according to hardness of rocks is the first step of high efficiency drilling. Far Eastern Drilling is an API certified factory of tricone roller bit.
| Basical Specification | |
| Size of Rock Bit | 4 5/8" |
| 118mm | |
| Bit Type | Steel Tooth Tricone Bit/ Milled tooth Tricone Bit |
| Thread Connection | 2 7/8 API REG PIN |
| IADC Code | IADC 216 |
| Bearing Type | Journal Sealed Roller Bearing |
| Bearing Seal | Rubber Seal |
| Heel Protection | Unvailable |
| Shirttail Protection | Available |
| Circulation Type | Mud Circulation |
| Drilling Condition | Rotary drilling,high temp drilling,deep drilling,motor drilling |
| Nozzles | Central Jet Hole |
| Operating Parameters | |
| WOB (Weight On Bit) | 7,954-22,537 lbs |
| 35-100KN | |
| RPM(r/min) | 60~180 |
| Formation | Soft to medium formations with high compressive strength, such as mudstone,gypsum,salt,soft limestone ,etc. |