The DZ series electric self-propelled trolley conveyor system is composed of steel structure, suspension devices, tracks, transfer switches, vertical lifting devices, trolleys, electric hoists, spreaders, **** busbars, current collectors, sensors, and control systems. As this system integrates optics, mechanics, electronics, and computer technology, it is key equipment for highly automated new material conveying and is widely used in industries such as machinery, electronics, automotive, light industry, postal services, and tobacco.