Friction welding drillpipe/DTH drill pipe is mainly used for drilling broken, anchor drilling, geothermal air conditioning holes, well and other drilling. The material pipe are purchased from Well-known large-scale enterprises. Pipe body are IU(internal upset) and EU(external upset) at two side. Pipe is connected with joint by friction welding, after this process, the pipe will be tempering treated, the joint of pipe will be upsetted and temperng treatment, and do the nitriding treatment on surface. in this way, thread gluing， breacking, and cracking are avoided effectively. the joint is more wire-resisting, pipes are easy to disassemble. All thread are machined by precision CNC lathe and shaping tools. We have equiped all thread by international standard screw gauge, in this case, our drill pipe is more stable and longer working life. We can produce API standard threaded drill pipes of different materials, lengths, diameters and wall thicknesses. OEM service is also accepted.

Our company can produce virous of oil drill pipes , mainly including API 5DP drill pipe and SY oil standard drill pipe. We can match the same grade of drill pipe joints according to customer's requirements and meets API SPEC 7-1 standard. The advanced friction buffing welding equipments can adjust the welding parameters to the best position to ensure the quality of the welding strip; the heat treatment process of internal and external simultaneous cooling, that make the mechanical properties more uniform and stable. Our company has equipped with automatic measuring and weighing , and automatic spray marking machine, that ensure products are traceable. Advanced drill pipe thickening and heat treatment production line are also equiped, It adopts CNC full-length heating furnace, quenching machine and tempering furnace. Advanced heat treatment processes and precise temperature control ensure the mechanical properties of the pipe. The hydraulic pressure of the pipe body ensures the straightness of the pipe body and the coaxiality of the pipe body.

DTH drill pipes are widely used in mining,geological exploring and all kinds of drilling(water,oil,gas,etc) projects.As a leading drill pipe manufacture,we make all kinds of standards and non-standard drill pipes for our customers. Our drill pipes including steel drill pipe,mining drill pipe,water well drill pipe,oil well drill pipe,API drill pipe,DTH drill rod,wireline drill rod,etc. This kind of geological drill rod is especially suitable for the geological, hydrological, coalfield, geothermal and engineering drilling. We prvide many kinds of geological drill rods in different diameters for customers.