API Hoobkas ntawm cov pob zeb roller cones IADC437 8.5 nti rau kev drilling
Kev piav qhia txog khoom
Lub ntsej muag hlau kaw TCI Drill Bit IADC437 8 1/2" (215mm lossis 216mm) yog rau kev tsim cov qhov dej mos.
1> 8 1/2 "(215mm lossis 216mm) yog qhov loj me ib txwm muaj hauv kev khawb qhov tob zoo li kev khawb roj thiab roj av, thiab nws kuj yog qhov loj me ib txwm muaj hauv kev khawb qhov kab rov tav.
Qhov kev sib txuas xov yog 4 1/2 API REG PIN.
Cov Khoom Siv Qhia Txog Khoom
| Cov Lus Qhia Tseem Ceeb | |
| Qhov Loj ntawm Pob Zeb Bit | 8.5 nti |
| 215.90 hli | |
| Hom ntsis | TCI Tricone ntsis |
| Kev Sib Txuas Xov | 4 1/2 API REG PIN |
| Tus lej IADC | IADC 437G |
| Hom kabmob | Phau Ntawv Xov Xwm Kaw Cov Kabmob Nrog Kev Tiv Thaiv Gauge |
| Cov Khoom Siv Bearing | Elastomer/Roj Hmab |
| Kev Tiv Thaiv Pob Luj Taws | Muaj |
| Kev Tiv Thaiv Tus Tsov Tus Ntxaib | Muaj |
| Hom Kev Ntshav | Kev ncig ntawm cov av nkos |
| Kev Tshawb Fawb | Kev khawb av qeeb mentshis, kev khawb av kub siab, kev khawb av tob, kev khawb av lub cev muaj zog |
| Tag Nrho Cov Hniav | 80 |
| Gage Row Cov Hniav suav | 33 |
| Tus naj npawb ntawm Gage Rows | 3 |
| Tus naj npawb ntawm cov kab sab hauv | 7 |
| Lub kaum sab xis ntawm phau ntawv xov xwm | 33° |
| Kev sib txawv | 8 |
| Cov Kev Ntsuas Ua Haujlwm | |
| WOB (Qhov Hnyav Ntawm Qhov Ntsis) | 17,077-49,883 phaus |
| 76-222KN | |
| RPM (r/min) | 300~60 |
| Lub zog siab tshaj plaws uas pom zoo | 16.3-21.7KN.M |
| Kev tsim | Kev tsim mos mos ntawm kev tsis kam crushing qis thiab siab drillability. |












