Carburized M/M M/F Extension Rod for Bench Drilling Mining Drill Pipe

• Customization: Available
• Usage: Well Drilling
• Brand: Prodrill
• Model NO.: T38 T51 T45
• Color: Red, Black, Yellow
• Materials: 40si/ 55si/ 23cr
• MOQ: 5PCS
• Craftsmanship: Carburized
• Transport Package: Wood Package
• Specification: CE, SGS
• Trademark: PRODRILL
• Origin: China
• HS Code: 84314320
• Production Capacity: 1000pec/Months

Product Description

Carburized M/M M/F Extension Rod for Bench Drilling Mining Drill Pipe






Extension rod, other names are Extension drill steel, Extension drill rod, and Extension steel, M/F rod ( Speed rod ) , Produce Hexagonal and round cross sections, Hexagon rods are more rigid, heavier and transfer energy more efficiently, while increasing flushing. Round rods are generally lighter than hexagonal rods and are normally used in extension drilling applications. With the longer steel tending to be larger in diameter, conventional extension steel is characterized by a duplicate thread on each end of the steel. 
Male/Male rod,Male/Female(M/F)Rod-Speed rod M/F drill steel is an alternative to couplings sleeves to include the female part of the threaded connection as an integral part of the drill steel. M/Fdrillsteelprovidesmorerigidconnectionsandiseasiertouncouple and handle. The service life also tends to be better than with separate couplings. 
For Extension Rod and M/F steel process, the below two different types of heat treatment are used to strengthen high speed and powerful percussive drill string components to maximize their performance and reliability.-Cannibalization is a process used to harden the entire rod surface both internally and externally to strengthen and extend the life of the rod. - High Frequency Induction is a process where only the thread ends of the rod are hardened to lengthen thread life. 
 
Drifter rod, another names are tunneling steels, tunneling rod, drifting drill rod, has Round and hexagon rod available, most of drifting drill steel with drill Steel Hexagon is for tunneling and drifting drilling application. Hexagon rods are more rigid, heavier and transfer energy more efficiently,while increasing flushing. 
It is common practice to bump up the drive end of drifting steel for added strength at the rock drill end to accommodate larger diameter and shank adapters. Drill steel is available in many standard lengths to match the drill feeds on a multitude of available drifting jumbos.Two different types of heat treatment are used to strengthen our percussive drill string components to maximize their performance and reliability. Cannibalization and middle frequency induction surface quenching as two process for strength the total quality and performance and life. 
 

Product Name:	Extension rod / Drift rod
Description:	Extension rod Thread drill rod Made with best quality carbon steel bar, through heat treatment like famous brands
Material:	carbon steel bar
MOQ:	5pcs
Body Type	Round shape and  hexagonal type
Thread type	R25,R28,R32,R38,T38,T45,T51
Diameter	Hex25,Hex28,Rd32,Rd38,Rd45,Rd51
Type	Thread Extension Rod and MF rod
Length	600mm-6400mm

 
Main Products:
1-12 inch middle-low/high air pressure DTH hammers & bits
Big hole high air pressure DTH hammer using in water well, oil, gas and construction drilling 
Eccentric overburden drilling Equipment 
Hole opener bit 
Rock thread bit (R22, R25, R28, R32, R35, R38, T38, T45,T51, ST58,GT60)
Extension Rod, M/F Rod, M/m Rod, Drift Rod,
Shank adapter, coupling sleeves and all kinds of adapters 

Advantages:
Compared with the oversea brands, our advantages are bellowing:
a. Our products can match over 95% against the original products
b. Price are competitive against the famous brands and best quality against the small factory