Roller Cone Bits and Diamond Bits Made in China
Zhenjiang Boral Machinery and Equipment Co., Ltd.- Manufacturing Process：Casting
- Surface Treatment：Spray-Paint
- Operation Pressure：Atmospheric Pressure
- Material：Cast Steel
- Application：Downhole Motor
- Transport Package：Export Standard
Base Info
- Model NO.：PDC
- Trademark：transtone
- Origin：China
- Production Capacity：5000 Pieces Per Year
Description
BIT TYPE IN MM BIT TYPE IN MM BIT TYPE IN MM BIT TYPE IN MM BIT TYPE INCH MM Junk slot volume API Pin in in in in2 in 6 M332 6 4 1/2 2 9.4 3 1/2 81/2 M332 6 6 1/2 3 16 41/2 121/4 M334 6 6 1/2 4 36.9 6 5/8
Recommended drilling parameters
GF6637
Recommended drilling parameters
GF7457H
Hard Formation Application
Medium parabolic crown profile and heavy density cutter layout provide the high ROP in high compressive strength and high abrasive formations.
High ROP
Unique cutter arrangement and location can keep cutting edge sharp in the drilling to obtain the maximun ROP.
Multi-function Hydraulics
The deep blade design can get high ROP in medium hard to hard formations and can better cool the bit in the hard and abrasive formations.
BIT SPECIFICATION
Recommended drilling parameters
GF8447HU
Hard Formation Application
Short parabolic crown profile and medium density cutter layout provide the superior ROP in soft to medium formations with abrasive interbeds.
High ROP
Unique cutter layout and back rake plot can keep cutting edge sharp in the drilling to obtain the maximun ROP.
Maximum Durability
The integrated cutter density design provides durability in the hard formation application.
Multi-function Hydraulics
The deep blade design can get the high ROP in medium to hard formations and can better cool the bit in the hard and abrasive formations.
BIT SPECIFICATION
Recommended drilling parameters
Recommended drilling parameters
| Size | Flow rate | RPM | WOB |
| in | L/s | rpm | KN |
| 6 | 1425 | 60-400 | 8-45 |
| 81/2 | 2538 | 60-300 | 20-100 |
| 12 1/4 | 2556 | 60-240 | 22-150 |
GF6637
- Medium parabolic crown profile and heavy density cutter layout can get high ROP in the medium hard and abrasive formations.
- Deep blade can get high ROP in soft to medium hard formation and effectively cool the bit in the hard and abrasive formations.
- High intensified gauge design can get longer footage in the hard and abrasive formations as steering application.
Size | IADC | Blades | Nozzles | Cutter size | Gauge length | Junk slot volume | API Pin |
| in | in | in | in2 | in | |||
| 81/2 | M323 | 6 | 6 | 3/4 | 3 | 15.8 | 4 1/2 |
| 91/2 | M323 | 6 | 6 | 3/4 | 3.5 | 20.2 | 6 5/8 |
| 121/4 | M323 | 6 | 8 | 3/4 | 4 | 30 | 6 5/8 |
Recommended drilling parameters
Size | Flow rate | RPM | WOB |
| in | L/s | rpm | KN |
| 81/2 | 2538 | 60-330 | 13-75 |
| 9 1/2 | 2844 | 60-350 | 13-88 |
| 12 1/4 | 3860 | 100-350 | 22-111 |
GF7457H
Hard Formation Application
Medium parabolic crown profile and heavy density cutter layout provide the high ROP in high compressive strength and high abrasive formations.
High ROP
Unique cutter arrangement and location can keep cutting edge sharp in the drilling to obtain the maximun ROP.
Multi-function Hydraulics
The deep blade design can get high ROP in medium hard to hard formations and can better cool the bit in the hard and abrasive formations.
BIT SPECIFICATION
| Size | Blades | Nozzles | Cutter size | Gauge length | Junk slot volume | API Pin | |
| in | in | in | in2 | in | |||
| 6 | M333 | 7 | 5 | 1/2 | 2 | 5 | 3 1/2 |
| 81/2 | M432 | 7 | 6 | 1/2 | 3 | 16 | 4 1/2 |
| 9 1/2 | M433 | 7 | 6 | 1/2 | 3.5 | 16.2 | 6 5/8 |
| 121/4 | M433 | 7 | 8 | 1/2 | 4 | 36.9 | 6 5/8 |
Recommended drilling parameters
| Size | Flow rate | RPM | WOB |
| in | L/s | rpm | KN |
| 6 | 1425 | 60 ~ 350 | 8-45 |
| 8 1/2 | 2538 | 60-350 | 13-115 |
| 91/2 | 3044 | 60-350 | 17-129 |
| 12 1/4 | 38-60 | 60 - 350 | 22-160 |
GF8447HU
Hard Formation Application
Short parabolic crown profile and medium density cutter layout provide the superior ROP in soft to medium formations with abrasive interbeds.
High ROP
Unique cutter layout and back rake plot can keep cutting edge sharp in the drilling to obtain the maximun ROP.
Maximum Durability
The integrated cutter density design provides durability in the hard formation application.
Multi-function Hydraulics
The deep blade design can get the high ROP in medium to hard formations and can better cool the bit in the hard and abrasive formations.
BIT SPECIFICATION
Size | IADC | Blades | Nozzles | Cutter size | Gauge length | Junk slot volume | API API Pin |
| in | in | in | in2 | in | |||
| 61/2 | M433 | 6 | 34 | 1/2 | 2.5 | 5.09 | 3 1/2 |
| 81/2 | M433 | 8 | 68 | 1/2 | 3 | 11 | 4 1/2 |
| 121/4 | M433 | 8 | 710 | 1/2 | 4 | 17.6 | 6 5/8 |
Recommended drilling parameters
Size | Flow rate | RPM | WOB |
| in | L/s | rpm | KN |
| 6 1/2 | 1016 | 60-240 | 8-45 |
| 8 1/2 | 2838 | 60-300 | 20-100 |
| 12 1/4 | 3856 | 60-350 | 44-178 |