Qingdao Nokunda Drilling Tools Co., Ltd.

Home  >   Products   >  Mining Tricone Bit   >  12 1/4" Tricone Bit   >   12 1/4" NGA545R
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

 

12 1/4" NGA545R

12 1/4" NGA545R
Product Name : 12 1/4" NGA545R
Directions

CUTTING STRUCTURE

Spherical on gage, double spherical on inner rows.
Designed for soft formations with low compressive strength, such as shale, soft limestone, interbedded dolomite, coal ore.
Compressive strength: 18,000-27,000 psi/124-186 MPa

 

SHIRTTAIL PROTECTION

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

 

PRODUCT SPECIFICATION

IADC Code:  545

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

Circulation Type: Jet Air

Cutting Structure: 

Inner and Nose Rows: Double spherical

Gage Rows: Spherical

Auxiliary Carbide: Spherical

Pin Connection: 6 5/8″ API REG

Metric Bit Diameter: 311 mm

Product Weight: 215 lbs/98 kg

 

OPERATING SUGGESTIONS 

Weight on Bit: 24,500-61,250lb/11.1-27.8T

Rotary Speed: 80-110rpm

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