QCW fiber laser welding machine is a laser welding equipment which use imported QCW fiber laser as laser source. The minimum focusing spot diameter is almost about 1/3 of the traditional YAG laser welding machine, so it is more suitable for precision welding. The electro-optical conversion efficiency is high of the fiber, The power consumption is nearly about 1/10 of traditional laser welding machine, annual electricity bill decrease from $30000 to $3000. with high reliability, this machine almost no need to maintenance or replace the xenon lamp, laser rod or other parts. Meanwhile, This equipment is a new generation of precision laser welding products, adopting air cooling and compact structure.The cover area is only 1/4 of the traditionalYAG laser welding machine, easy for production line layout or automation integration.