|
| Brand Name: | FLRT |
| Model Number: | 5 5/8 FW211 |
| MOQ: | 1~10pcs |
| Supply Ability: | 500pcs per quarter |
311.2mm FSG124, Steel Tooth Tricone Bit , Rotary Drilling Bit , Rubber Sealed Bearing , TRC Bit
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
| Types & IADC Code |
116 117 |
126 127 |
136 137 |
216 217 |
246 247 |
326 327 |
|
| WOB | KN/mm(Bit Dia.) | 0.48~1.0 | 0.48~1.0 | 0.48~1.0 | 0.4~1.0 | 0.4~1.0 | 0.55~0.85 |
| Lb/in. (Bit Dia.) | 2742~5714 | 2742~5714 | 2742~5714 | 2285~5714 | 2285~5714 | 3140~4860 | |
| Rotation Speed (Rpm) | 160~80 | 150~70 | 130~60 | 100~60 | 80~50 | 60~45 | |
Roller cone bits
- Employs cones rotates about their own axis
- Used in mining and civil engineering
- First used in 1920
- Cones can be milled teeth cut from the body or tungsten carbide buttons interested into the cones
- There are three types:
• Two cone bit, milled tooth used for soft formation
• Three cone bit most widely used, milled or insert
• Four cone bit, milled tooth used for drilling large diameter 26 in (660.4 mm)
