Down the Hole DTH Drill Pipe for Drilling

  • Brief info:Down the Hole DTH Drill Pipe for Drilling, US $ 1,000 - 3,000 / Piece, Hunan, China, SOLLROC, DTH pipe.Source from Changsha Sollroc Engineering Equipments Co., Ltd. on
We will reply in 24 hours.

Product Description


DTH drilling tool is a kind of drilling system which uses compressed air as motivation, makes drilling impact motivation parts down the hole, to control the piston reciprocating motion by the distribution device in the hammer, and then impacts the DTH bit in the front of the hammer to transit the impacting power to the bit. The DTH bit in the front of the hammer breaks the rock to drill hole. 



DTH drill pipe

Outer diameter



Wall thickness








API 2 3/8”REG

API 2 3/8”REG

API 2 3/8”REG

API 2 3/8”REG

2 3/8”IF

2 7/8”IF

3 1/2”IF

3 1/2”BECO

4 1/2”BECO

6.3mm    8mm



3 1/2”

6.3mm    8mm




6.3mm    8mm



4 1/2”

8mm    10mm




10mm   12mm



5 1/2”

14mm   19mm







Carefully selected seamless steel pipe and high quality alloy steel for joint tools.
Precisely friction welded to ensure straightness and concentrically.
Multiple precisely heat-treated tools joint.
Internally and externally upset drill rods are available



Advantages and  application


At present, DTH drilling tool is widely used in underground mining, quarries, hydraulic and Hydro-Power Engineering, water well drilling, Mineral exploration, anchoring hole drilling, geothermal engineering, Subway excavation, another civil engineering. it has the advantage of high flatness, smooth hole wall, high rigid of drill rod and hammer, independent of high axial thrust, no limit of drilling depth, low cost of devices and easiness to maintain. At the drilling hole of dia.105mm-dia.254mm, a plenty of the DTH drilling tools are used.



Packing and shipping


Packing: carton+plywood case, or as request.

Shipping: By air, by sea, by express, as request.



Related products


              DTH bits                           DTH hammer                              RC bits                             RC hammers





Company information


Sollroc is recognized as one of the professional manufacturer and supplier of high performance rock drilling tools like: DTH hammers and bits, RC hammers and bits, DTH drill rods and top hammer drilling tools with more 10 years of experience. Our tools are widely used in different drilling applications including mining, quarrying, water well drilling, geotechnical industries and etc.


Sollroc is specialized in designing, manufacturing and developing equipments and accessories for standard models as well as the special needs of clients and provides them with the best suggestions and solutions. We practice strict and stringent quality control during manufacturing and adhered to recognized and approved quality control systems. Each of our products follows the quality requirements and procedures to ensure finished products are durable and superior up to standard.