Specifications

1,Certified by ISO9001
2,Reliable bearing system
3,all kinds and size PDC bits
4,drag drilling bit

 

 

        drag drilling bit

 

 

1. Bit profile is optimized and is suitable for drilling soft to medium formations.

 

2. Cutting structure is force balanced, bit blade is asymmetrically designed, and spiral blade and spiral gage are also designed so that the load on bit is balanced which resulting better stability of the bit.

 

3. Multiple types of high performance PDC cutters are strategically arranged on bit for improved service life of the bit.

4.Shock absorbers are designed to make the bit capable of drilling through formations with hard stringers.

 

5. Hydraulic system of the bit is optimized using dynamic flow pattern simulation technology to enhance cleaning and cooling effects of the bit to effectively prevent bit from balling.

 

6.Erosion on bit surface is effectively prevented by utilizing hardfacing material of highly erosion resistant and applying advanced base metal enhancement technology.

 

7. Ports on bit are also optimally designed to prevent erosion of water courses inside the bit.

 

details:

 

Bit type		Main bit size(mm)	Rock coefficient
PDC core drill bit	Single pipe	75/54.5  94/74  113/89  113/109  153/129	1-18
	Two-pipes	75/54.5  94/68
PDC center drill bit	Concave 3 wing bit	60  75  94  113  133	1-18
	Arc pillar	60  75  94  113  133	4-18
	Many wing scraper	60  75  94  113  133  133  153  173  190  215	1-6
PDC Indexable drill bit		153/94   153/113  190/153   190/113	1-18

 

blade:4,5,6,7,8,9

 

Formation :sticky, soft, medium hard, hard formation

 

 

Hejian Hengji Bit Manufacture Co., Ltd  we have been in line with the belief of "faith-based, quality of survival and mutual benefit, provides the highest quality products and attentive service for our customers". We are looking forward to establishing relationships with you in the near future.