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Extension Rod Rock Drilling Tools Downhole Drilling MF R32 R38 T38 T45 T51

Extension Rod Rock Drilling Tools Downhole Drilling MF R32 R38 T38 T45 T51

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Brand Name :ROSCHEN
Model Number :MF R32 R38 T38 T45 T51
Certification :ISO
Place of Origin :Germany,China
MOQ :1 pcs
Price :Negotiate
Supply Ability :13000pcs Per month
Packaging Details :Wooden box
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Rock Drill Extension Rod MF R32 R38 T38 T45 T51

Extension Rod

Rock drifting and extension drill rods are for in drifting, tunneling, long-hole drilling, bench and production drilling industries. These rods are produced with round or hexagonal sections in all common thread designs, and in Male/Male (M/M) or Male/Female (M/F) connections. All our drifting and extension drill rods are heat-treated with carburization or high frequency, combinated with phosphorization

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.

Extension rod size

Product 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
R38-Hex28-R25
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

The round cross sections are more prevalent for extension drilling applications. A round rod has less material and thus is lighter to handle and less expensive than an equivalent size hexagonal rod. While hexagonal rod is particularly advantageous for drifting and tunneling drilling. The increased rigidity of hexagonal drill rods enables them to abating hole-deviation and enhances flushing for cleaning holes. Even with the larger cross section, hexagonal steel can still accommodate the same diameter bit as that of an equivalent round steel.

M/F rods provides tighter connections and is easier for handling and quicker for uncoupling than M/M rods, and are potential to drill straighter holes.

Carburization technique is mainly used in the production of big diameter rods to ensure excellent performance. Carburizing is for hardening entire rod to provide an external over entire rod surface area. Carburized steels are used primarily in underground applications and where water is used as a flushing medium. High Frequency technique is primarily used in the production of small diameter rods to reduce fragileness of drill steels. High Frequency is for hardening only the thread ends of the rod. This provides the longevity of the product as well as being more suitable for more drilling condition need. Steels produced with this technics primarily used in surface drilling applications where air is the primary flushing medium. Phosphorising is to improve anti-erosion capability of the entire external rod surface area.

For more information, please contact:

Skype: ROSCHEN.TOOL , ROSCHEN_GROUP

WeChat: +86-137 6419 5009 ; +86-135 8585 5390

WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390

Email: roschen@roschen.com ; roschen@roschen.net

Website: http://www.roschen.com ; http://www.roschen.net

http://www.roschen.cn ;

China Extension Rod Rock Drilling Tools Downhole Drilling MF R32 R38 T38 T45 T51 for sale

Extension Rod Rock Drilling Tools Downhole Drilling MF R32 R38 T38 T45 T51

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