The long and short bar gang saw production line consists of a five-meter conveyor chain frame, bar counting function, multi-bar loading and unloading machine, feeding conveyor frame, short bar clamping and conveying device, long bar stacking device, automatic weighing, laser coding, short bar. It is composed of gang saw host, aluminum shavings collection briquetting block, discharge storage ingot frame, scrap collection frame, hydraulic system, electrical control system, etc.