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3 7/8‘’ 98mm PDC Oil Drilling Bit Rock Drilling Tools

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Basical Specification

Size of bit

3 7/8''

Number of Blades

5

Primary Cutter Size

13mm

Nozzle Qty.

4NZ

Thread Connection

2 3/8 REG

Operating Parameters

RPM (r/min)

60~300

WOB(KN)

20~110

Application

Medium-hard to hard formations with low compressive strength, such as hard shale, limestone, sand-stone, dolomite, hard gypsum, marble, etc.



3 78-1副本_副本

The material of the bit adopts high quality steel and wear-resistance material with high performance is built-up welded on the surface of baldes to prevent matrix mqaterial form eroding.

Bit body is made from an integrated alloy forging and finished by advanced CNC machining center.

Deep and wide junk slots ensure bit cleaning and cooling of drilling  fluid ,which benefits fast drilling and anti-balling.

Adopts high performance PDC cutters ,increases the ability to drill through hard stringers and provides longer service life.

PDC cutters of different features are selected and bit profile design is optimized to suit differents when drilling applications in different formations to satisfy different requirements when drilling soft to medium hard formations.

According to the requirements of customers,desigh and produce different bits.



Company Information

轮播图5副本1


Main products

tricone bit(mill tooth and tungsten carbide insert tricone bit)

PDC bit(matrix body and steel body PDC bit)

hole opener(HDD rock reamer,barrel reamer,etc)

drag bit(step drag bit,PDC drag bit,chevron drag bit,etc)

accessories(single cone,bit breaker,nozzle ,etc)  


7-钢体_副本_副本


6-钢体_副本-_副本


4-钢_副本_副本


5刀-胎体_副本_副本



Regular Models

14 34

14 3/4'' 117

14 34 537

14 3/4'' 537

13 58 537

12 1/4 ''537

10 58

10 5/8'' 537

22 517 (1)_副本

22''517

8 34 617 (1)_副本    8 3/4'' 617
15 12 517 (2)_副本

15 1/2'' 517

9 58 737_副本

9 5/8'' 737

12 14 537 (2)

12 1/4'' 537

6 12 537 (2)

6 1/2'' 537

8.12 517 (2)

8 1/2'' 517

108 437 (1)

108mm 437

6.5 217

6 1/2'' 217

12 14 637 (1)

12 1/4''637

6 517

6'' 517

6 14 (3)副本_副本

PDC 6 1/4''

4 34 (4)副本_副本

PDC 4 3/4''

12 (3)_logo

Drag bit 12''

1

8 1/2'' single cone

_MG_3168-1

8 1/2'' single cone

18 (2)_副本

Hole Opener 18''

12 637

Hole Opener 12''

_MG_3059-1

8 1/2'' single cone

1636013154460-ckt-抠图

Stabilizer

17.5 537 (2)

Reamer 17 1/2''


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NAVIGATION

Hejian Hengji Bit Manufacture Co.,LTD  is specialized in researching and production of rock drilling bits , mainly includes tricone bits, PDC bits, HDD hole opener, foundation single roller cutters, drag bits and related tools with advanced CNC machines and R&D team.

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Junziguan industrial zone, hejian city, hebei province
+86-317 3213999
+86-18232837832
+86-18232837832
+86-18232837832
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