High frequency induction power output can be freely set according to the size of the workpiece to meet the requirements of embedding and welding metal and plastic products of different sizes. It is a crystal based high-frequency induction heating technology that works on the principle of electromagnetic induction. It penetrates plastic products in a non-contact manner and instantly induces induction heating of the induction material embedded in the plastic product, causing the workpiece interface to quickly melt and then fill the gap between the interfaces. It is equipped with a complete mechanical device to achieve perfect welding.