The product is equipped with coaxial oscillator to reduce power loss. The special designed coherent receiver allows stronger power. The above mentioned makes the machine increase the daily production while decrease the welding time. In order to process products which is difficult to weld, the machine is also equipped with high-quality supercharged cylinder with pressure to allow strong and stable power, and keep high performance. With a reasonable designed mobile slide mechanism, the machine has a stable operation, accurate positioning, and high quality. There is a reliable over-voltage, over-current and spark protection device, which can automatically cut off power source or make the machine stop working in order to protect valuable parts, such as oscillation tube from damage.