This device is a socket fusion welding machine, commonly known as a PPR pipe welder. It is specifically designed to permanently join plastic pipes and fittings (such as PPR, PE, PB, and HDPE) used in modern plumbing and hot/cold water supply systems.
Instead of using glue or threading, this machine uses high heat to melt the plastic surfaces together, creating a seamless, leak-proof joint that becomes as strong as the pipe itself.