Rotary Roller Bit Core Barrel for Piling Foundation Roller Bit
A roller bit is a type of drill bit with a small rotating metal piece at its center. The Roller bit teeth on this bit are made of hardened steel or tungsten. This bit is used in geothermal drilling. It cuts through soil and penetrates the formation.The core barrel with roller bit can drill the formation which the drilling bucket and core barrel with bullect teeth can not drill on foundation piling project.
The Roller bit can be adjusted according to the application. For instance, you can adjust the weight of the roller bit to suit your drilling equipment. Another advantage of this kind of bit is its comfort.
The most common type of tricone drill bit is the roller-cone bit. These are versatile tools that are easy to maintain. Roller cones are mounted on bearings and can be divided into a single bit or into an assembled multi-cone bit.A tricone bit is best suited for drilling most types of rock. The spacing of the teeth allows for the cleaning of the formation.
Size unit: mm
| Cutting Dia. | Shell Dia. | Shell Hit. | Stiffening Ring Hit. | Shell Thk. | Stiffening Ring Thk. | Teeth No. |
| 800 | 720 | 1800 | 250 | 20 | 45 | 11 |
| 1000 | 920 | 1800 | 250 | 20 | 45 | 15 |
| 1200 | 1120 | 1800 | 250 | 20 | 45 | 19 |
| 1400 | 1320 | 1500 | 250 | 20 | 45 | 23 |
| 1500 | 1420 | 1500 | 250 | 20 | 45 | 23 |
| 1600 | 1520 | 1500 | 250 | 20 | 45 | 27 |
| 1800 | 1720 | 1500 | 250 | 20 | 45 | 27 |
| 2000 | 1920 | 1500 | 250 | 20 | 45 | 31 |
| 2200 | 2120 | 1500 | 250 | 20 | 45 | 31 |
| 2400 | 2320 | 1500 | 250 | 20 | 45 | 35 |
| 2500 | 2420 | 1500 | 250 | 20 | 45 | 39 |
| 2800 | 2720 | 1500 | 250 | 20 | 45 | 43 |
High quality of material steel of Q355B,high hardness and good wear resistance.
Full guide strips on the shell,protecting the shell and guide out the gravel.
Good drilling efficiency , 50~60cm per hour.
Overall aftersale service, one-stop piling solution provided