Tungsten Carbide Insert TCI Tricone bits 8 1/2 inch sealed bearing
for Australian Mining Drilling
The tricone drill Bit is the most versatile drill bit on the
market. It is the go to drill bit in most styles of drilling.
ROSCHEN Tools always has the right Tri Cone Drill Bit for you no
matter when you are drilling a water well or an oil well.
ROSCHEN offers new steel tooth and tungsten carbide insert tri cone
bit in sizes from 3 1/2" – 26", with open or sealed bearings,
regular or jet circulation, and a wide range of additional custom
features for ideal performance in any formation. Tri cone bit can
be customized optimize penetration rates and bit life in particular
formations and under specific operating weights and rotation
speeds.
Tricone Drill Bit features
1. Cutting Structure of this type sealed and non-sealed TCI tricone
bits :
The wear-resistance of teeth is enhanced with premium tungsten
carbide hard facing on the tooth surfaces for steel tooth bit.
2. Gauge Structure of this type TCI tricone rock bits :
Multiple gauge protection with gauge trimmers on the heel and gauge
inserts on the gauge surface of the cone, tungsten carbide inserts
and hard-facing on the shirttail increases gauge holding capability
and bearing life.
3. Bearing Structure of this type TCI tricone rock bits :
High precision roller bearing with two thrust faces. Ball lock the
cone. Thrust faces hard-face with wear resistant alloy. Abrasion
resistance and seizure resistance of the bearing are improved.
| Tricone Roller Drill Bits Specifications |
| Bit Diameter | API PIN |
| (inch) | (mm) |
| 3 7/8''~5 1/4'' | 98~134 | 2 3/8''. 2 7/8'' |
| 5 5/8''~6 3/4'' | 143~171 | 3 1/2'' |
| 7 1/2''~9 1/2'' | 190.5~241 | 4 1/2'' |
| 9 5/8''~13 3/4'' | 245~350 | 6 5/8'' |
| 14 5/8''~26'' | 371~660.4 | 7 5/8'' |
| IADC CODE SELECTION LIST |
| IADC | WOB | RPM | Application |
| (KN/mm) | (r/min) |
| 111/114/115 | 0.3-0.75 | 200-80 | very soft formations with low compressive strength and high drill
ability, like clay, mudstone, chalk |
| 116/117 | 0.35-0.8 | 150-80 | very soft formations with low compressive strength and high drill
ability, like clay, mudstone, chalk |
| 121 | 0.3-0.85 | 200-80 | soft formations with low compressive strength and high drill
ability, like mudstone, gypsum, salt, soft limestone |
| 124/125 | 180-60 |
| 131 | 0.3-0.95 | 180-80 | soft to medium formations with low compressive strength, like
medium, soft shake, medium soft limestone, medium soft sandstone,
medium formation with harder and abrasive interbeds |
| 136/137 | 0.35-1.0 | 120-60 |
| 211/241 | 0.3-0.95 | 180-80 | medium formations with high compressive strength, like medium, soft
shake, hard gypsum, medium soft limestone, medium soft sandstone,
soft formation with harder interbeds. |
| 216/217 | 0.4-1.0 | 100-60 |
| 246/247 | 0.4-1.0 | 80-50 | medium hard formation with high compressive strength, like hard
shale, limestone, sandstone, dolomite |
| 321 | 0.4-1.0 | 150-70 | medium abrasive formations, like abrasive shale, limestone,
sandstone, dolomite, hard gypsum, marble |
| 324 | 0.4-1.0 | 120-50 |
| 437/447/435 | 0.35-0.9 | 240-70 | very soft formations with low compressive strength and high drill
ability, like clay, mudstone, chalk, gypsum, salt, soft limestone |
| 517/527/515 | 0.35-1.0 | 220-60 | soft formations with low compressive strength and high drill
ability, like mudstone, gypsum, salt, soft limestone |
| 537/547/535 | 0.45-1.0 | 220-50 | soft to medium formations with low compressive strength, like
medium, soft shake, medium soft limestone, medium soft sandstone,
medium formation with harder and abrasive interbeds |
| 617/615 | 0.45-1.1 | 200-50 | medium hard formation with high compressive strength, like hard
shale, limestone, sandstone, dolomite |
| 637/635 | 0.5-1.1 | 180-40 | hard formation with high compressive strength, like limestone,
sandstone, dolomite, hard gypsum, marble |
| Note: Above limitts of WOB and RRPM should not be used
simultaneously |
For more information please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
