ROSCHEN manufacturer Produces a complete line of tricone bit. Tricone bits are available in new and used (re-tip and re-run) steel tooth and tungsten carbide insert, size from 3 3/8”(85.7mm) to 26”(660.4mm) for use in all formations, with any bearing/seal type, and a wide range of additional custom features.
8 3/4inch Tricone Bit with Tungsten Carbide Insert IADC517
Diameter | 8 3/4inch/222mm |
Pin type Dimensions | 4 1/2" API |
Teeth Type | TCI |
IADC Code | 517 |
ROSCHEN manufacturer Produces a complete line of tricone bit. Tricone bits are available in new and used (re-tip and re-run) steel tooth and tungsten carbide insert, size from 3 3/8”(85.7mm) to 26”(660.4mm) for use in all formations, with any bearing/seal type, and a wide range of additional custom features.
Tricone bit Included Steel Tooth (also referred to as milled tooth) bits and Tungsten Carbide Insert (TCI) bits, TCI bits are much more durable than Steel Tooth ones, but carry a higher cost to manufacture. Both these two groups of Tricone Bits are available with
(1) Open Bearing or Sealed Bearing
(2) Roller Bearing or Friction Bearing (Journal Bearing)
(3) Gage Protected or Non-Gage Protected, etc
Tri-Cone Bit Parameters
TRICONE DRILL BITS - STANDARD CONNECTION SIZES * | |
SIZE | STANDARD PIN CONNECTION |
2 1/2" to 2 3/4" inclusive | A - AW Rod |
2 7/8" to 3 3/8" inclusive | N4 Rod |
3 1/2" to 4 1/2" inclusive | 2 3/8" API |
4 5/8" to 5" inclusive | 2 7/8" API |
5 1/8" to 7 3/8" inclusive | 3 1/2" API |
7 1/2" to 9 3/8" inclusive | 4 1/2" API |
9 1/2" to 14 3/8" inclusive | 6 5/8" API |
14 1/2" to 18 1/2" inclusive | 6 5/8" API or 7 5/8" API |
18 5/8" to 26" inclusive | 7 5/8" API or 8 5/8" API |
27" and larger | 8 5/8" API |
*Tricone bits are available with alternative connection sizes on request. | |
tricone drill bits for medium rock formations
If you want to drill calcite, dolomite, hard limestone and some hard shale, you need to design tricone drill bit for medium rock. You may need to better understand why tungsten carbide is the ideal material for the tricone drill bit. It is useful to understand its properties. Tungsten carbide, first discovered in 1927, is a very strong and hard material that enables it to withstand higher speeds, thereby achieving faster drilling speeds. in addition, the tricone drill bit can absorb a lot of heat without damaging the bit. The pitch of the intermediate drill is much smaller than that of the soft drill. In addition, although teeth may have a similar range of shapes, their teeth are less prominent.
2. tricone drill bits for hard rock formations
Hard rock is tough, and abrasive rock usually includes hard shale, calcite, mudstone, pyrite, granite and quartzite. The difficulty of drilling in this material makes tricone drill bits almost essential. The button has excellent hardness and strength, making it able to withstand very difficult drilling conditions. As with all tricone drill bits, you can choose between sealed and open bearings. Sealed bearing drills provide better anti-wear protection, making them more suitable for use before replacement. Drills designed for hard formations often have fewer protruding teeth. Teeth are short and tight. This greatly reduces the drilling speed compared to soft rock, but if you are drilling hard rock, you have little choice.
ROSCHEN GROUP is professional in manufacturing and supplying quality 8 3/4inch tricone bit with tungsten carbide insert iadc517 as one of the leading manufacturers and suppliers in China. We now bring you high quality 8 3/4inch tricone bit with tungsten carbide insert iadc517 for sale, competitive in its excellent performance and high precision. Please rest assured to buy.
