9 7/8 Inch 251mm Mining Tricone Bit
Product Description
SOLLROC 9 7/8" (251mm) TCI Tricone bit
Diameter: 9 7/8" (251mm)
IADC code: 435/545/632/635/725/835/845
9 7/8" (251mm) tricone bit details:
| Bit diameter | Part number | IADC code | Application | Weight | Pin connection | Cirlulation type | Operating Suggestions WOB/RPM | ||
| inch | mm | lbs | kg | ||||||
| 9 7/8 | 251 | SCTCI251-435M | 435 | Very soft and poorly-compacted formation, such as shale, conglometare, soft dolomite and soft overburden of coal mines, etc | 143 | 65 | API 6 5/8" REG | Jet Air | WOB: 9,875-39,500 lbs Rotary speed: 90-120 RPM |
| SCTCI251-545M | 545 | Middel-soft and poorly-compacted formation such as sandstones with streaks of quartz, hard limestone or chert, hematite ores, hard, well compacted abrasive rock such as: sandstones with quartz binder, dolomites, quartzite shales, magma and metamorphic coarse grained rocks. | 143 | 65 | API 6 5/8" REG | Jet Air | WOB: 19,750-49,380 lbs Rotary speed: 80-110 RPM | ||
| SCTCI251-632M | 632 | Medium-hard, abrasive and well-compacted formations, such as shale, soft limestone, soft dolomite and soft overburden of coal mines, etc | 143 | 65 | API 6 5/8" REG | Jet Air | WOB: 27,000-54,000 lbs Rotary speed: 60-100 RPM | ||
| SCTCI251-635M | 635 | Mediume-hard, abrasive and well-compacted rocks such as: hard silica limestones, quarzite streaks, pyrite ores, hematite ores, magnetite ores, chromium ores, phosphorite ores,and granites. | 143 | 65 | API 6 5/8" REG | Jet Air | WOB: 29,260-59,250 lbs Rotary speed: 80-110 RPM | ||
| SCTCI251-725M | 725 | Hard, abrasive and well-compacted formations, such as hard silica limestones, quarzite streaks, pyrite ores, hematite ores, magnetite ores, chromium ores, phosphorite ores and granites. | 143 | 65 | API 6 5/8" REG | Jet Air | WOB: 39,500-59,000 lbs Rotary speed: 60-90 RPM | ||
| SCTCI251-835M | 835 | Extremly hard and abrasive, well-compacted rocks such as: hard silica limestones, quarzite streaks, pyrite ores, hematite ores, magnetite ores, chromium ores, phosphorite ores, and granites. | 146 | 66 | API 6 5/8" REG | Jet Air | WOB: 49,370-79,000 lbs Rotary speed: 50-80 RPM | ||
| SCTCI251-845M | 845 | Extremly hard and abrasive, well-compacted rocks such as: hard silica limestones, quarzite streaks, pyrite ores, hematite ores, magnetite ores, chromium ores, phosphorite ores, and granites. | 146 | 66 | API 6 5/8" REG | Jet Air | WOB: 49,370-79,000 lbs Rotary speed: 50-80 RPM | ||