This series heavy duty CNC pipe threading lathe is mainly designed for processing big size internal and external pipe threads including metric, inch, module, DP and taper threads, as well as having all the common functions of normal CNC lathe such as processing the inner bore and end face of shafts and disks. This series lathe machine is widely used in industries including petroleum exploiting, minerals mining, chemical piping and geological prospecting, it is high-efficiency equipment in processing and repairing drilling pipe, drilling rod, thread coupling and so on.