FAR EASTERN DRILLING Tricone Bits adopt optimally-designed bearing structures and tungsten carbide inserts to withstand the extreme challenge of modern mining applications. Designs are continually evolving to increase drilling performance. High standards of quality control in manufacturing are implemented to ensure product reliability. Choices of bit type, design characteristics and secondary features must achieve an optimal balance between high rate of penetration (ROP) and long service life. When achieved together, these parameters enable a reduced total drilling cost (TDC) for our customers.
IADC535 is TCI sealed roller bearing bit with gauge protection for soft to medium soft formations with low compressive strength.
| Basical Specification | ||||
| IADC Code | IADC535 | |||
| Size of Rock Bit | 7 7/8” | 9 7/8” | 10 5/8” | |
| 200mm | 251mm | 270mm | ||
| Thread Connection | 4 1/2” API REG PIN | 6 5/8” API REG PIN | 6 5/8” API REG PIN | |
| Product Weight: | 34KG | 65KG | 74KG | |
| Bearing Type: | Roller-Ball-Roller-Thrust Button/Sealed Bearing | |||
| Circulation Type | Jet Air | |||
| Operating Parameters | ||||
| Weight on Bit: | 15,750-39,380Lbs | 19,750-49,380Lbs | 27,500-68,750Lbs | |
| Rotary Speed: | 110-80RPM | |||
| Air Back Pressure: | 0.2-0.4 MPa | |||
| Ground Description: | Medium hard and abrasive rocks such as sandstone with streaks of quartz, hard limestone or chert, hematite ores, hard, well-compacted abrasive rock such as: sandstone with quartz binder, dolomite, quartzite shale, magma and metamorphic coarse grained rocks | |||