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Home > Products > Top Hammer Drilling Tools > Extension Rod > Mm and Mf Hexagon Extension Speed Drifter Guide Rod

Mm and Mf Hexagon Extension Speed Drifter Guide Rod

Basic Info

Model No.:  R38 T38 T45 T51 ST58

Product Description

Model NO.: R38 T38 T45 T51 ST58 Length: 950-6000mm Material: Carbon Steel Can Match: Atlas Copco, Sandvik Rock Drill Thread: R22 R25 R28 R32 T38 T45 T51 Mining Object: Coal Machinery Transport Package: Plywood Box Origin: China Certification: API Usage: Ore Mining Drilling Rod Length: 280-6400mm Brand: Bestlink Rod Type: Hex or Round(Plain) Trademark: none Specification: R22 R25 R28 R32 T38 T45 T51 HS Code: 72288000 Mm and Mf Hexagon Extension Speed Drifter Guide Rod
Extension 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/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/F drill steel provides 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 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.

Extension rod size
R32-Round32-R32 length 3 4 6 8 10 12 ft
T38 (R38) Round39-T38 (38), length 4' 6' 10' 12'ft
T45 -Round46-T45, length 10' 12' 14' 20' ft
T51 -Round52-T51, length 12' 14' 20' ft

MF rod /speed rod size
MF-rod R32-Round32-R32, length 3 4 5 6 10 12 14 ft
MF Rod T38-Round39-T38, length 4 5 6 10 12 14 ft
MF Rod T45-Round46-T45, length 5 6 10 12 14 20 ft
MF Rod T51-Round52-T51, length 6 12 14 20 ft
MF Rod ST58-Round60-ST58, length 12 14 20 ft

(1)Steel grade: 20CrNi3Mo equivalent to SANDBAR 64
SIZE: Hex. 22mm. Hex. 25mm, hex. 28mm. Hex. 32mm hex. 35mm
Dia. 32mm. Dia. 38mm, dia. 45mm dia. 51 mm
(2) Thread: R22, R25, R28, R32, R38, T38, T45, T51, ST58
(3)Length: 0.4m-10m
(4)Package: In wooden case or in bundles.
(5)Productivity: 20000MT / month
roduct Name Size Specification Length
R25 Rod Hex25 R25-Hex25-R25 610mm, 915mm, 1220mm, 1525mm,1830mm,2435mm, 3050mm, 3660mm
R32-Hex25-R25 1830mm,2130mm,2475mm,2795mm,3090mm,3700mm
Hex28 R32-Hex28-R25 3090mm, 3700mm
R28 Rod Hex28 R32-Hex28-R28 2475mm,2590mm,3090mm,3700mm,4005mm,4305mm
R38-Hex28-R28 3090mm, 3700mm,4305mm
R32 Rod Hex32 R32-Hex32-R32 2475mm,3090mm,3700mm,4305mm
R38-Hex32-R32 2475mm, 3090mm,3700mm,  4005mm,4305mm,   4610mm,4915mm
T38-Hex32-R32 4305mm
Hex35 R38-Hex35-R32 3090mm,3700mm,4305mm,4915mm,5525mm
T38-Hex35-R32 3090mm,3700mm,4305mm,4915mm,5525mm,6135mm
T38-Hex35-R32 MF-rod 3090mm,3700mm,4305mm,4915mm,5525mm,6140mm
RD39 R38-RD39-R32 4305mm
T38-RD39-R32 4305mm,4915mm,5525mm,6135mm
Mm and Mf Hexagon Extension Speed Drifter Guide RodMm and Mf Hexagon Extension Speed Drifter Guide RodMm and Mf Hexagon Extension Speed Drifter Guide Rod

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Product Categories : Top Hammer Drilling Tools > Extension Rod

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