Qingdao Nokunda Drilling Tools Co., Ltd.

Home  >   Products   >  Mining Tricone Bit   >  9 7/8" Tricone Bit   >   9 7/8" NGA635RF
News Center
Contact Us

 

Qingdao Nokunda Drilling Tools Co., Ltd.  

 No. 15 Donghai Xi Road, Shinan District, Qingdao City, Shandong Province, China

Whatsapp: +86 13792983690

Wechat: +86 13792983690 

Email: [email protected]

 

 

contact

 

9 7/8" NGA635RF

9 7/8" NGA635RF
Product Name : 9 7/8" NGA635RF
Directions

CUTTING STRUCTURE

Conical on gage, double spherical and concial on inner rows, with auxiliary carbide protection.
Designed for high compressive strength, medium hard and abrasive formations,
such as limestone, sandstone, interbedded dolomite.
Compressive strength: 29,000-38,000 psi/200-262 MPa

 

SHIRTTAIL PROTECTION

Hard metal and wear resistant carbide protection on shirttail lip and lug

 

PRODUCT SPECIFICATION

IADC Code:  635

Bearing Type: Roller-Ball-Roller-Thrust Button / Sealed Bearing

Circulation Type: Jet Air

Cutting Structure: 

Inner and Nose Rows: Double spherical and concial

Gage Rows: Conical

Auxiliary Carbide: Spherical

Gage Bevel Protection: Ovoid

Pin Connection: 6 5/8″ API REG

Metric Bit Diameter: 251 mm

Product Weight:143 lbs/65 kg

 

OPERATING SUGGESTIONS 

Weight on Bit: 44,093 bs / 20.0T MAX

Rotary Speed: 60-100rpm

Air Back Pressure: 29-58 psi/0.2-0.4 MPa

 

Inquiry
If you need any information before purchase, you can click our online service, If it is not availabl
Title:
 
Your name:
  *
Email:
  *
Telephone:
 
Message:
  *
Code:
    *
       Items marked with * have to be filled in