SS1
ISO 9001:2000
New
DC Motor
75mm-325mm
More Than 20 Meters
Cone Bit
Rotary
Bq Nq Hq Pq
Core Drill Bit
Well Drilling, Metal Drilling, Coal Mine Drilling
Diamond
Customizable
zhuangyuan
Wooden Crate
75mm-325mm Carbon Steel
China
Product Description

Size of The Core Bits and Reaming Shell | ||||||
Description | Core Bits | Reaming Shell | ||||
Specification Model | Outside Diameter | Inside Diameter | Outside Diameter | |||
Inches | mm | Inches | mm | Inches | mm | |
BTW | 2.345 | 59.56 | 1.667 | 42.1 | 2.36 | 59.95 |
NTW | 2.965 | 75.31 | 2.218 | 56.1 | 2.98 | 75.7 |
HTW | 3.762 | 95.57 | 2.809 | 71.1 | 3.783 | 96.06 |
AC(AQ) | 1.875 | 47.63 | 1.062 | 26.97 | 1.89 | 48.01 |
BC(BQ) | 2.345 | 59.56 | 1.433 | 36.4 | 2.36 | 59.95 |
BC3(BQ3) | 2.345 | 59.56 | 1.32 | 33.53 | 2.36 | 59.95 |
NC(NQ) | 2.965 | 75.31 | 1.875 | 47.63 | 2.98 | 75.7 |
NC3(NQ3) | 2.965 | 75.31 | 1.775 | 45.08 | 2.98 | 75.7 |
HC(HQ) | 3.762 | 95.57 | 2.5 | 63.5 | 3.783 | 96.09 |
HC3(HQ3) | 3.762 | 95.57 | 2.406 | 61.11 | 3.783 | 96.09 |
PC(PQ) | 4.805 | 122.05 | 3.345 | 84.96 | 4.828 | 122.65 |
PC3(PQ3) | 4.805 | 122.05 | 3.27 | 83.06 | 4.828 | 122.65 |
T2-56 | 2.205 | 56 | 1.642 | 41.7 | 2.217 | 56.3 |
T2-76 | 2.992 | 76 | 2.429 | 61.7 | 3.004 | 76.3 |
T2-86 | 3.385 | 86 | 2.832 | 71.7 | 3.398 | 86.3 |
T2-101 | 3.976 | 101 | 3.295 | 83.7 | 3.988 | 101.5 |
T6-101 | 3.976 | 101 | 3.11 | 79 | 3.988 | 101.5 |
T6-131 | 5.157 | 131 | 4.252 | 108 | 5.157 | 131.5 |

Specifications of Reaming Shell | |
Category | Bit Size |
Double-tube Reaming shell | P56,P59,P75,P76,P91,P110,P130 |
Single-tube Reaming shell | D56,D59,D75,D76,D91,D110,D130,D150,D171,D223 |
Wireline Reaming shell | S56,S59,S75,S95,BC,NC,HC,PC,T2-76,T2-86 |




Our distinguished company boasts a rich heritage, formerly recognized as Hunan Zhuangyuan Geological Equipment Co., Ltd., and closely aligned with the prestigious Hunan Provincial Institute of Geophysics and Geochemistry. Born from the esteemed original 409 team mechanical repair workshop, we have evolved through significant milestones: the establishment of the 409 Repair Factory in 1989, the inception of the Diamond Products Research Institute in 1992, and the formation of Zhuangyuan (Group) Company in 2003. This group became the proud home of Hunan Zhuangyuan Diamond Products Co., Ltd. and Hunan Zhuangyuan Geological Equipment Co., Ltd. Our remarkable journey saw a new dawn in 2016 with the strategic alliance forming Hunan Yuanyu Exploration Technology Development Co., Ltd., in partnership with Hunan Hongyu Water Resources and Hydropower (Group) Co., Ltd. We are a nationally recognized high-tech enterprise, expertly navigating the realms of design, production, scientific research, and operational services. Our specialties include advanced geological equipment, such as cutting-edge drilling rigs, precision-crafted drilling tools, state-of-the-art diamond drill bits, and sophisticated centralized slurry injection systems. Notably, our pioneering 'centralized slurry grouting system' has earned its rightful place on the inaugural recommended emergency equipment procurement list in Hunan Province.
In recent years, our company has been adorned with numerous accolades, proudly cementing the 'Zhuangyuan' brand as a multiple-time recipient of the 'Famous Trademark of Hunan Province.' Our unwavering commitment to excellence has been further recognized with our designation as a 'Hunan Province Contract Abiding and Creditworthy Unit' as well as a 'Hunan Province Integrity Construction Demonstration Unit.' We also celebrated a significant milestone by being honored with the prestigious title of 'National High-Tech Enterprise' in the year 2021.
At the heart of our company's ethos lies a steadfast dedication to technological innovation, boasting an impressive portfolio of over 10 patents. We cherish our enduring partnerships with esteemed institutions such as China University of Geosciences (Wuhan) and Central South University, proudly serving as an industry-university research base for China University of Geosciences (Wuhan). Furthermore, our collaborative efforts with the Guangzhou Institute of Geochemistry of the Chinese Academy of Sciences have resulted in the highly acclaimed marine shallow sampling drilling rig, which has garnered high praise and satisfaction from our valued users.


