Beijing Feilong International Trade Co., Ltd.
Main products:PDC Bit,Tricone Bit,Drill Pipe,Drag Bit,Dill Collar
Products
Contact Us
  • Contact Person : Ms. Chen Kathy
  • Company Name : Beijing Feilong International Trade Co., Ltd.
  • Tel : 86-10-6340 5086
  • Fax : 86-10-6340 7657
  • Address : Beijing,Beijing,B2-0645 ROOM, CENTURY-TEA-TRADE-CENTER, NO.10 MALIANDAO ROAD, XUANWU DISTRICT, BEIJING
  • Country/Region : China
  • Zip : 100055

roller cutter for Engineering bits

roller cutter for Engineering bits
Product Detailed
For mining,military industry,bridge and port construction,geological prospecting,hydraulic engineering and tunnel excavation

 Engineering bits are mounted on vertical well rig,construction drilling machine or excavator and used for mining,military industry,bridge and port construction,geological prospecting,hydraulic engineering and tunnel excavation. Because of high mechanization,high penetration rate,good drilling quality,low labor intensity as well as safe operation,the engineering bit is a primary product used for modern doundation construction. 

 Engineering bit consists of cone,bearing ,shaft,cap and sealing components.The bit cone rotate round the shaft and fis mounted on a saddle to form a drilling unit.

 A special sealing system and a piston balanced structure filled with special lubricant are utilized to prevent construction bit bearing from permeation of sand,so as to improve the reliability of bearing system and prolong the lifetime of construction bit.

Types&Parameters of 8 series

Size(mm)

Insert Teeth

 

Inner Row

Gage row

A

246

244

B

198.6

198.6

C

147

147

a

12.5°

12.5°

b

22.5°

Applications

Medium hard to hard formations

Types&Parameters of 12 series

Size(mm)

Insert Teeth

Steel teeth

 

Inner Row

Gage row

Inner Row

Gage row

A

386

355.5

413.7

373

371.5

B

280

280

280

311.9

306.4

C

224

224

224

224

224

a

10°

10°

10°

10°

10°

b

15°

30°

30°

Applications

Medium hard to hard formations

Soft to Medium hard formations

Types & Parameters of 15 series

Size(mm)

Insert Teeth

Steel teeth

 

Inner Row

Gage row

Inner Row

Gage row

A

453

544.5

447.7

544.5

B

353

353

374.7

371.5

C

340

340

340

340

a

b

33°

33°

Applications

Medium hard to hard formations

Soft to Medium hard formations

roller cutter for Engineering bits



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