12 1/4" 5 Blades Imported Matrial 4145h PDC Drill Bits
1. Specification Basical Parameter
Basical Parameter
| Bit Size | 3 7/8''-17 1/2'' |
| Number of Blade | 5 |
| Primary Cutter Size | 13 / 16/ 19mm |
| Connection | 6 5/8′′reg |
| Operating Parameter |
| Rotary Speed(r/min) | 60~250 |
| Weight on Bit(KN) | 20~110 |
| Flow Rate(lps) | 45~60 |
PDC DRILL BITS - STANDARD CONNECTION SIZES
| BIT SIZE(INCH) | API REGULAR PIN(INCH) | RECOMMENDED MAKE UP TORQUE(KN.M) |
| 4 1/2 to 4 3/4 | 2 7/8 API | 6.0~7.5 |
| 5 1/8 to 7 3/8 | 3 1/8 API | 9.5~12 |
| 7 1/2 to 9 3/8 | 4 1/2 API | 16.0~22 |
| 9 1/2 to 14 1/2 | 6 5/8 API | 38~43 |
| 14 5/8 to 17 1/2 | 7 5/8 API | 46~54 |
2. PDC ADVANTAGES
The Diamond PDC drill bit designed to run at high penetration rates
even in applications that call for higher blade and cutter counts.
Its unique cutting structure layout adds another dimension to bit
stability and smooth running by combining the penetration rate
potential of traditional "single set" cutter layouts with the life
extending features of a "plural set" cutter layout. The result is a
bit that runs up to 20 percent faster than conventional PDC bits
with minimum bit wear.
Diamond bits work across an extended range of weight on bit,
penetrating quickly even at low bit weights in softer rock. When
formations firm up, the bits can take added weight with a smooth
torque response and maintain higher than competitive rates of
penetration. The technology is a departure from traditional plural
set bits that require higher weights to drill even in soft rock,
and are generally durable, but slow, even in harder rock.
Traditional plural set bits also can produce an erratic torque
response when taking additional weight.
For more information please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
http://www.roschen.cn ; http://www.roschendrill.com
