Male/Female (M/F) drill rod, speed rod, MF rods:
We're one of Chinese biggest and most professional manufacturers of
M-F drilling rods, and our M/F drill steel rod is an alternative to
couplings sleeves to include the female part of the threaded
connection as an integral part of the drill steel. M/F drill steel
procides more rigid connections and is easier to uncouple and
handle. The service life also tends to be better than with separate
couplings. The advantages of drilling with M/F steel include: easy
handling, quicker uncoupling, tighter connections, the potential to
drill straighter holes, and longer service life.
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. Longer steel larger in diameter,
conventional extension steel, Hexagonal and round cross sections
are available.
Carburization is a process used to harder the entire rod surface
both internally and externally to strengthen and extend the life of
the rod.
High frequency induction is process where only the thread ends of
the rod are hardened to lengthen thread life.
(1) Threaded Connection: R22, R25, R32, R38, T38, T45, T51, T60 and
so on.
(2) Diameter: OD32, OD38, Hex32, Hex35, And so on.
(3) Length: 800-6000mm.
(4) Package: Ply-wooden cases or wrapped with plastic knitting and
then packed into bundles or as per your requests.