DTH drill pipes - Guizhou Sinodrills Equipment Co.,Ltd.

Sinodrills DTH drill pipes

If you want to learn more, please visit our website JK Drilling.

DTH drill pipes (Down the Hole Drill Pipes) play a significant role in all DTH drilling, regardless of application, rock type, hole depth or drill rig. The key features of a high quality DTH tube are durability, accuracy and manageability. Sinodrills DTH drill pipes are made of superior alloy and the both thread ends are friction welded to the seamless steel pipe.The high pressure air is delivered to DTH hammer by DTH drill pipe, simultaneously it transfers the rotation and press force to the DTH hammer.

Standard DTH drill pipe:

Diameter: 76mm, 89mm, 102mm, 114mm, 127mm, 140mm,

Length: mm, mm, mm, mm, mm, mm;

Thread&#; 2 3/8&#; API REG, 2 7/8&#; API REG, 3 1/2&#; API REG, 4 1/2&#; API REG, 2 3/8 API IF, 3 1/2 API IF

Special DTH drill pipe:

Want more information on DTH Drill Bits? Feel free to contact us.

The drill pipe for Atlas Copco &#; Ingersol Rand T4, Schramm T64, Atlas Copco F6, L6 and L8, and the drill pipe for Sandvik Driltech D25/D40K.

DTH drill rod,also known as DTH drill pipes a drilling tool to deliver impact energy and rotational force to the DTH hammers and DTH drill bit. And it has a wide applications such as rock drilling and crushing, anchor drilling, water well drilling, etc.

Introduce of the DTH drill rod

The Importance

DTH drill pipe is the basic component of the drill string. The raw material is stainless steel pipe (wall thickness is generally 9~11mm). And Its main function is to transmit torque and deliver drilling fluid. And it can keep the borehole continuous deepen by gradually lengthening the drill pipe. The project consumes a lot, so the quality of the drill pipe directly affects the progress of the project. Therefore, drill pipe plays an important role in coal mining, geological exploration, and engineering.

Raw materials and manufacturing processes

The raw material for pipe bodies are R780/N80 which is from well-known large-scale steel companies in China. And the material of the joint part is 35CrMo. An integrated oxidation free furnace is used for material heat treatment. Besides,and professional CNC machining is used for thread processing. All threads are equipped with thread gauges that comply with international standards.

The two ends of the pipe body are internally thickened and tempered after friction welding. The drill pipe joint shall be subject to quenching and tempering heat treatment after rough machining. Moreover, the surface nitriding treatment after precision machining effectively eliminates the probability of failure such as sticking, fracture, etc.. Which can make the drill pipe more wear-resistant, easy to disassemble and greatly extend its service life.

Because there are different types and models, it is necessary to choose the most suitable one to achieve the best effect. When choosing drill pipes, it is important to go to a reputable and large manufacturer for quality assurance. Bellow is the specifications of our DTH drill rod:

Rod dia(mm) Rod Length(mm) Thickness(mm) Connect Thread Wrench Flats(mm) inch mm 3 76 - 5 API23/8&#;REG 57/64.5 3 76 - 8 API23/8&#;REG 57/64.5 31/2 89 - 6 API23/8&#;REG 70/64 31/2 89 - 8 API23/8&#;REG 70/64 4 102 - 10 API23/7&#;REG 76/89 41/2 114 - 6 API31/2&#;REG 89/95 41/2 114 - 8 APl31/2&#;REG 89/95 41/2 114 - 10 API31/2&#;REG 89/95 41/2 114 - 18 API31/2&#;REG 89/95 5 127 - 12 APl31/2&#;REG 89 5 127 - 14 API31/2&#;REG 89 5 127 - 18 API31/2&#;REG 89 51/2 140 - 9 APl41/2&#;REG or 4&#;FH 114 51/2 140 - 10 AP141/2&#;REG or 4&#;FH 114 51/2 140 - 12 AP141/2&#;REG or4&#;FH 114

BESTONE is a well-known domestic DTH drill rod manufacturer. And we have rich experience in providing customers with high-quality water well drill pipes and comprehensive after-sales service. If you want to know the latest drill pipe prices or more detailed information, please feel free to contact us: https://www.bestonedrill.com/contact-us/