R32 R38 T38 T45 T51 threaded extension drill rods for mining quarring tunneling blasting drilling

R32 R38 T38 T45 T51 threaded extension drill rods for mining quarring tunneling blasting drilling

Whatsapp/Phone:+86 18186993613

E-mail: sales@superdrill.com.cn

Extension rods are one major spare part in terms of drill application area, there are two shapes of extension rods, one is round type, another one is hexagonal type.

But all extension rods are threaded and made by hollow drill steels, this means usually extension rods are hollow.This hollow hole are usually named flushing hole, used for transmitting water or air during drilling. Two ends threads can be used for connecting couplings, shanks, couplings or bits. Typically two ends of extension rods are male, while sometime one end is male and another one is female, then we call it M/F rod. We need couplings to connect extension rods, while for M/F rods, because one end is female, so couplings are not necessary.
Specifications:
Thread sizes: R22, R25, R28, R32, R35, R38, T38, T45, T51;

Rods diameter: round 32mm, round 39mm, round 46mm, round 52mm, Hex.22mm, Hex.25mm, Hex.28mm, Hex. 32mm, Hex. 35mm;
Effective lengths:600mm ~ 6400mm;

Superdrill Equipment Co.,Ltd , an professional manufacturer of various Rock Drills,quarrying & mining tools for natural dimensional stone quarrying, mining and construction.
Our products include:

Top hammer drilling tools (R25-R28, R32, R35 T38,T45,T51,GT60);Extension Rod ;Coupling and Shank adaptors.API standard series drilling pipesHigh, Medium and Low air pressure DTH hammers and bits,( 2'' ~ 24''): DHD,COP,Mission,QL,SD,Numa series; Overburden Casing system ( Concentric & Symmetric casing sytem, Odex Casing System), Double Casing System and Reverse Circulation System Etc.

Our products can be perfectly matched with the world famous brand such as Atlas Copco, Sandvik, Ingersoll-Rand and other well-known manufacturers’ products.

Our company has introduced the most advanced manufacturing equipments and technology in this area and has established an integrated production system. Electro-hydraulic forging hammers for forging process, Italian atmosphere-controllable sealed quench furnace for heat treatment, CNC machines for accurate finishing and experienced workers in metal machining all contribute to the good performance of our products. Till now, we have fulfilled the purpose of all parts being finished precisely and key processes being controlled numerically. Meanwhile, we have been awarded of varies of technology and products patents which ensure the high quality and reliability of our products.