China T51 Thread Extension Drill Rod for Drifting and Tunneling
|FOB Price:||US $100 / Piece|
|Min. Order:||10 Pieces|
|Min. Order||FOB Price|
|10 Pieces||US $100/ Piece|
|Production Capacity:||50000 PCS / Month|
|Payment Terms:||L/C, T/T, Western Union, Money Gram|
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- Model NO.: T51
- Length: 0.4 - 6 M
- Material: Carbon Steel
- Type: Thread Rod
- Body Type: Round, Hexagonal
- Transport Package: Wooden Case
- Origin: Xiamen, China
- Certification: ISO9001
- Usage: Coal Mining
- Application: Drifting and Tunneling, Bench Drilling
- Processing Type: Forging
- Trademark: BESTLINK
- Specification: ISO
- HS Code: 72288000
Extension rods are made by hollow drill steels. This hollow hole are usually named flushing hole, used for transmitting water or air during drilling.
And the threads can be used for connecting couplings, shanks, couplings or bits.
There are two shapes of extension rods, round type and hexagonal type.
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.
Usually for extension rods, there are R22, R25, R28, R32, R38, T38, T45, T51, ST58, T60 threads,
and different lengths of rods are available from 600mm to 6400mm usually.
(1) Type: Male-Male Rod, Male-Female Rod
(2) Thread: R22, R25, R28, R32, R38, T38, T45, T51,
(3) Rod size: hex. 22mm, hex. 25mm, hex. 28mm, hex. 32mm, hex. 35mm,
dia. 39mm, dia. 46mm. dia. 52mm
(4)Package: in wooden case or in bundles.
|R25 Rod||Hex25||R25-Hex25-R25||610mm, 915mm, 1220mm, 1525mm,1830mm,2435mm, 3050mm, 3660mm|
|R38-Hex32-R32||2475mm, 3090mm,3700mm, 4005mm,4305mm, 4610mm,4915mm|
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