Wholesale mining well tricone drilling bits with discounted price from China factory. Bit Description: IADC:742-TCI sealed roller bearing bit with gauge protection for extremely hard and abrasive formations. Compressive Strength: 100-150 MPA 14,500-23,000 PSI Ground Description: Hard, well-compacted rocks such as :hard silica limestones,quarzite streaks,pyrite ores,hematite ores,magnetite ores,chromium ores,phosphorite ores,and granites. We can offer mining tricone rock drill bits in a variety of sizes and most of IADC Codes.CUTTING STRUCTURE: Ovoid on gage,ogive and ovoid on inner rows. Designed for hard and abrasive formations with high compressive strengths such as granite,limestone,sandy sandstone,dolomite and chert. Applicaiton:46,000-56,000 SHIRTTAIL PROECTION: Hardmetal and wear resistant carbide on shirttail lip and lug. PRODUCT SPECIFICATION: IADC Code:742 Bearing Type:Roller-Ball-Roller-Thrust Button/Open Bearing Circulation Type:Jet Air Cutting Structure: Inner and Nose Rows:Ogive and ovoid. Gage Rows:Ovoid Gage Bevel Protection:Round Pin Connection:6 5/8" API Metric Bit Dia:311mm OPERATING SUGGESTIONS Weight on Bit:49,000-85,750lbs Rotary Speed:90-60RPM Air Back Pressure:0.2-0.4MPa
| Basical Specification | |
| IADC Code | IADC742 |
| Size of Rock Bit | 12 1/4 inches |
| 311mm | |
| Thread Connection | 6 5/8” API REG PIN |
| Product Weight: | 98Kgs |
| Bearing Type: | Roller-Ball-Roller-Thrust Button/Sealed Bearing |
| Circulation Type | Jet Air |
| Operating Parameters | |
| Weight on Bit: | 49,000-85,750Lbs |
| Rotary Speed: | 90-60RPM |
| Air Back Pressure: | 0.2-0.4 MPa |
| Ground Description: | Hard, well-compacted rocks such as: hard silica limestone, quarzite streaks, pyrite ores, hematite ores, magnetite ores, chromium ores, phosphorite ores, and granite. |
