Liaocheng Jinquan Construction Machinery Co.,Ltd can provide DTH Friction Welding Drill Tube (DTH Pipe) and Rotary Drilling Friction Welded Drill Rods (Rotary Pipes) with A.P.I. connections.
High quality DTH rock drilling tools,DTH drill pipes,DTH drill rods used for quarrying,tunneling,water well drilling.
DTH Drill pipe is made of high quality material detected by spectrograph, impact and tension test.
With fully digitized processing line introduced from Japan with integral heat treatment equipment
Anti adhesion thread with nitrogen treatment on surface make it easier for handling.
Metallography detection, hardness test, magnaflux inspection, ultrasonic flaw detection, tensile test and impact test ensure products quality.
DTH drill pipes production technologies: Friction welding;
DTH drill pipes out diameter:76mm, 89mm, 102mm, 114mm;
DTH drill pipes thread sizes: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;
DTH drill pipes length: 1000mm, 1500mm, 2000mm, 30000mm, 6000mm.