AI-9 is a fully automatic, mainline fiber optical fusion splicer with six motors and fiber core alignment, capable of welding long- distance fiber optic lines. Also within VFL and OPM function. Adopting industrial grade CPU, with fast running speed, 5-second rapid fusion welding, 15-second rapid heating, 5-inch highresolution LCD screen, 320x magnification; The work efficiency is increased by 50% compared to ordinary welding machines; Large- capacity lithium battery can be heated by fusion about 260 cores, outstanding performance in harsh environments such as high altitudes, deserts, and extreme cold.