Heavy Weight Rock 5 7/8 Inch Mining Drill Rod

Mining Drill Rod advantages:

1. 95% quality similarity with world top class brands,such as atlas Copco etc.

2. Strong ability in drilling tools production.

3. Strick quality control.

Rotary Subs:         

Roschen rotary subs include: 

Straight OD subs 
Reduced section OD subs 
Crossover subs 
Bit Subs 
Saver Subs 
Side Entry Subs 
Pump In Subs 
 

The rotary subs are available in standard sizes specified in API and in a full range of connection combinations. Special sizes and configurations are available upon request. 




 

Manufacturing: 
 

All accessories except welded pup joints are manufactured from solid modified alloy steel bars similar to drill collars which are fully heat treated to the required chemistry and mechanical properties. The internal bore is trepanned with precision and machined to size with comprehensive quality control. 

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