The most notable feature of hdpe jointing machine is to free the welder's hands. Of course, the welding quality and welding efficiency are greatly improved, and the learning difficulty, work difficulty and intensity of the operator are reduced. Manual welding has a large human factor, so the consistency of weld formation will be much worse. The quality of welds welded by automatic welding machines is reliable and beautiful. Welders are easy to learn and not difficult to learn.